History of Ghostscript versions 6.n

## Table of contents

> - Version 6.50 (2000-12-02)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, Interpreter (PDF), Interpreter, Library
> - Version 6.32 (2000-11-27)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, PDF writer, Interpreter (PDF), Interpreter, Streams, Library
> - Version 6.31 (2000-11-03)
>   - Incompatible changes, Documentation, Procedures, Interpreter, Library
> - Version 6.30 (2000-10-03)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, PDF writer, Interpreter (PDF), Interpreter, Streams, Library, ???Other???
> - Version 6.23 (2000-08-07)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, PDF writer, Interpreter (PDF), Interpreter, Library
> - Version 6.22 (2000-07-05)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, PDF writer, Interpreter (PDF), Interpreter, Streams, Library
> - Version 6.21 (2000-04-28)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, PDF writer, Interpreter (PDF), Interpreter, Streams, Library
> - Version 6.20 (2000-04-06)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, PDF writer, Interpreter (PDF), Interpreter, Streams, Library
> - (Versions 6.02 - 6.19 deliberately omitted.)
> - Version 6.01 (2000-03-17)
>   - Incompatible changes, Documentation, Procedures, Utilities, Drivers, PDF writer, Interpreter (PDF), Interpreter, Streams, Library
> - Version 6.0 (2000-02-03)
>   - Documentation, Procedures, Utilities, Drivers, Platforms, Fonts, PDF writer, Interpreter (PDF), Interpreter, Streams, Library

This document is a record of changes in Ghostscript releases numbered 6.n. For earlier versions, see the the history documents:

> History of Ghostscript versions 5.n
> History of Ghostscript versions 4.n
> History of Ghostscript versions 3.n
> History of Ghostscript versions 2.n
> History of Ghostscript versions 1.n

For other information, see the Ghostscript overview.

Within each release, news appears in the following order: Incompatible changes, Documentation, Procedures, Utilities, Drivers, Platforms, Fonts, PDF writer (included under Drivers through fileset 5.88), Interpreter, Streams (included under Interpreter through release 2.9.9), Library. Changes marked with a * were made available as patches to a previous release.

# Version 6.50 (2000-12-02)

This fileset consists of AFPL Ghostscript 6.50, a maintenance release.

All problems registered on SourceForge numbered 124313 or lower are closed, except for the following: 101814, 101905, 101955, 102146, 102735, 105289, 106340, 106652, 109350, 111449, 113116, 113799, 114084, 115256, 115536, 116461, 117066, 117260, 119676, 119677, 119798, 120967, 121161, 121582, 121715, 122035, 122426, 122532, 122534, 122683, 122727, 123005, 123091, 123702, 123754, 123867, 123896, 123992, 124042, 124056, 124095, 124134, 124204, 124313.

The following projects are in a partially completed state:

- CID-keyed fonts in the PDF writer (gdevpdf[eftw].c) -- barely started.

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    Incompatible changes

    (Procedures)
    	- The -Zv and -ZV switches now trace alpha/transparency features.
    	- The program name is now AFPL Ghostscript rather than Aladdin
    Ghostscript.
    	- The default Windows installation directory is now c:\gs rather
    than c:\Aladdin.
    (Utilities)
    	- lib/pdfeof.ps is deleted; its functionality is included in the
    standard code.
    (Drivers)
    	- The X driver now implements sync_output using XSync(False) rather
    than XFlush().
    (Library)
    	- gdev_vector_dopath now never returns 1.
    	- Color space types now have a new, required, "equal" procedure.

    Documentation

    Fixes problems:

    Version number updates in preparation for the 6.50 release.
    (doc/Bug-form.htm [1.9.2.3], doc/Bug-info.htm [1.7.2.3],
    doc/C-style.htm [1.4.2.3], doc/Commprod.htm [1.3.2.3],
    doc/Copying.htm [1.3.2.3], doc/Current.htm [1.3.2.3], doc/DLL.htm [1.3.2.3],
    doc/Devices.htm [1.13.2.3], doc/Drivers.htm [1.8.2.3],
    doc/Fonts.htm [1.8.2.3], doc/Helpers.htm [1.6.2.3],
    doc/History1.htm [1.3.2.3], doc/History2.htm [1.3.2.3],
    doc/History3.htm [1.3.2.3]: 2000/12/02 22:15:04 raph)

    Version number updates in preparation for the 6.50 release.
    (doc/History4.htm [1.3.2.3], doc/History5.htm [1.5.2.3],
    doc/History6.htm [1.14.2.5], doc/Htmstyle.htm [1.6.2.3],
    doc/Install.htm [1.9.2.3], doc/Language.htm [1.19.2.3],
    doc/Lib.htm [1.3.2.3], doc/Maintain.htm [1.4.2.3], doc/Make.htm [1.15.2.3]:
    2000/12/02 22:15:07 raph)

    Version number updates in preparation for the 6.50 release.
    (doc/New-user.htm [1.13.2.3], doc/News.htm [1.65.2.3],
    doc/Projects.htm [1.19.2.3], doc/Ps2epsi.htm [1.4.2.3],
    doc/Ps2pdf.htm [1.18.2.3], doc/Psfiles.htm [1.8.2.3], doc/README [1.4.2.2],
    doc/Readme.htm [1.13.2.3], doc/Release.htm [1.21.2.3],
    doc/Source.htm [1.3.2.3], doc/Tester.htm [1.3.2.3],
    doc/Unix-lpr.htm [1.3.2.3], doc/Use.htm [1.13.2.5],
    doc/Xfonts.htm [1.3.2.3], doc/gs-vms.hlp [1.3.2.3], man/dvipdf.1 [1.1.2.3],
    man/font2c.1 [1.1.2.3], man/gs.1 [1.1.2.3], man/gslp.1 [1.1.2.3],
    man/gsnd.1 [1.1.2.3], man/pdf2dsc.1 [1.1.2.3], man/pdf2ps.1 [1.3.2.3],
    man/pdfopt.1 [1.1.2.3], man/pf2afm.1 [1.1.2.3], man/pfbtopfa.1 [1.2.2.3],
    man/printafm.1 [1.1.2.3], man/ps2ascii.1 [1.1.2.3], man/ps2epsi.1 [1.1.2.3],
    man/ps2pdf.1 [1.5.2.3], man/ps2pdfwr.1 [1.2.2.3], man/ps2ps.1 [1.7.2.3],
    man/wftopfa.1 [1.1.2.3]: 2000/12/02 22:15:10 raph)

    Final News and change history edits in preparation for the 6.50 release.
    Note that, with this commit, History6.htm has been cleaned up, deleting
    commit messages for the HEAD branch in CVS incorrectly generated by
    cvs2hist.py. (doc/Changes.htm [1.18.2.3], doc/History6.htm [1.14.2.6],
    doc/News.htm [1.65.2.4]: 2000/12/04 21:40:36 raph)

    Updates change and history files to incorporate last-mine os2 patch.
    (doc/Changes.htm [1.18.2.4], doc/History6.htm [1.14.2.7],
    doc/News.htm [1.65.2.5]: 2000/12/05 01:41:03 raph)

    Procedures

            - The OS/2 platform code would no longer compile, because the stdio
    files are no longer available. (fix from rjl) (fix corresponds to revs
    os2mak 1.9, gp_os2.c 1.5) (os2.mak [1.8.2.1]: 2000/12/05 01:31:15 raph)

    Version number updates in preparation for the 6.50 release.
    (version.mak [1.22.2.3]: 2000/12/02 22:15:11 raph)

    Changes AROOTDIR from c:/Aladdin to c:/gs for Windows and OS/2 builds.
    (bcwin32.mak [1.4.2.1], msvc32.mak [1.6.2.1], msvclib.mak [1.6.2.1],
    os2.mak [1.8.2.2], watc.mak [1.6.2.1], watclib.mak [1.6.2.1],
    watcw32.mak [1.5.2.1]: 2000/12/05 07:36:56 raph)

    Utilities

    Fixes problems:
    	- pdfopt.ps used the "unresolved?" procedure from pdf_base.ps, which
    has been replaced by the slightly different "resolved?" procedure. (fix by
    ghost@aladdin.com corresponds to rev 1.4) (lib/pdfopt.ps [1.3.2.1]:
    2000/12/01 05:48:45 rayjj)

            - The OS/2 platform code would no longer compile, because the stdio
    files are no longer available. (fix from rjl) (fix corresponds to revs
    os2mak 1.9, gp_os2.c 1.5) (gp_os2.c [1.4.2.1]: 2000/12/05 01:31:14 raph)

    Drivers

    Interpreter (PDF)

    Fixes problems:

    The published PDF specification says the Encoding name "must be" one of the
    3 predefined Encodings, implying that an error should occur if it isn't.
    However, Acrobat Reader simply ignores unknown names, and since there are
    some buggy applications that rely on this, we do the same.
    (lib/pdf_font.ps [1.12.2.2]: 2000/11/28 19:03:16 alexcher)

    Interpreter

    Fixes problems:
    	- In dictionaries, an int lookup key sometimes didn't match a real
    stored key, and vice versa. Fixes SourceForge bug # 123678. (fix by ghost@
    aladdin.com corresponds to rev 1.3) (idict.c [1.2.2.1]: 2000/11/30 18:30:25
    rayjj)
    	- When closing an encoding filter pipeline with an eventual
    procedure target, the intermediate 'process' procedures could be called even
    after they returned EOFC, producing extraneous output. (zfproc.c [1.4.2.3]:
    2000/12/02 06:15:14 raph)
    	- Further tweaking of the logic to clear end_status flags in a
    pipeline in the continuation of a procedure write, making it more aggressive
    than the previous fix, but less aggressive than the original code. This is a
    revised fix for Sourceforge bug 119777. (zfproc.c [1.4.2.4]: 2000/12/02
    19:55:31 raph)
    	- 'gstate' was allowed in global VM even if the current graphics
    state included references to structures in local VM (which is, in fact,
    normally the case) and the save level was non-zero: this could create a
    dangling pointer after the 'restore'. This "fix" is a workaround that simply
    prohibits doing this, but a correct fix would copy any such structures. (fix
    by ghost@aladdin.com corresponds to rev 1.3) (zdps1.c [1.2.2.1]: 2000/12/02
    21:08:27 raph)
    	- The first call of check_psc_function in gs_build_function_4 didn't
    initialize size to 0, causing the computed value of size to be garbage,
    possibly leading to a VMerror or memory corruption. (zfunc4.c [1.5.2.2]:
    2000/12/03 17:08:32 alexcher)

    Version number updates in preparation for the 6.50 release.
    (lib/gs_init.ps [1.25.2.3]: 2000/12/02 22:15:11 raph)

    Library

    Fixes problems:
    	- Allocates graphics state path in stable memory. This prevents
    paths in Type 3 fonts allocated inside a save ... setcachedevice ... restore
    sequence from being prematurely freed. Fixes SourceForge bug 101549.
    (gspath1.c [1.2.2.1], gsstate.c [1.5.2.1]: 2000/12/04 21:10:27 raph)
            - An inadvertent change caused the graphics state not to be freed on
    grestore. This fix, due to lpd, restores the freeing statement.
    (gsstate.c [1.5.2.2]: 2000/12/05 09:12:04 raph)

    Implements the stopgap measure of increasing fill_adjust for Coons patch
    shading, to cover the dropouts caused by incorrect triangulation of the mesh
    surface. See SourceForge Bug 119588 for a more thorough analysis.
    (gsptype2.c [1.3.2.1], gxshade4.c [1.3.2.1]: 2000/11/29 01:29:50 raph)

    The old code did not comply ISO/IEC C language standard and compiled wrongly
    to Mac, causing halftone problem on Mac. (gshtscr.c [1.3.2.2]: 2000/11/29
    14:38:00 igorm)

    Version number updates in preparation for the 6.50 release.
    (gscdef.c [1.9.2.1]: 2000/12/02 22:15:11 raph)

    Version 6.32 (2000-11-27)

    This fileset consists of a beta release.

    The following projects are in a partially completed state:

    CID-keyed fonts in the PDF writer (gdevpdf[eftw].c) -- barely started.

    Incompatible changes

    (Procedures)
    	- The -Zv and -ZV switches now trace alpha/transparency features.
    	- The program name is now AFPL Ghostscript rather than Aladdin
    Ghostscript.
    	- The default Windows installation directory is now c:\gs rather
    than c:\Aladdin.
    (Utilities)
    	- lib/pdfeof.ps is deleted; its functionality is included in the
    standard code.
    (Drivers)
    	- The X driver now implements sync_output using XSync(False) rather
    than XFlush().
    (Library)
    	- gdev_vector_dopath now never returns 1.
    	- Color space types now have a new, required, "equal" procedure.

    Documentation

    Fixes problems:
    	- Removes obsolete documentation reference to -DUsePrinterImages and
    clarifies the entry for the replacing -DPrinted. Corresponds to revision
    1.16 in the main branch. Fixes sourceforge bug # 121907.
    (doc/Use.htm [1.13.2.3]: 2000/11/20 20:39:10 giles)

    Updates version number to 6.32 in preparation for release.
    (doc/Bug-form.htm [1.9.2.2], doc/Bug-info.htm [1.7.2.2],
    doc/C-style.htm [1.4.2.2], doc/Commprod.htm [1.3.2.2],
    doc/Copying.htm [1.3.2.2], doc/Current.htm [1.3.2.2], doc/DLL.htm [1.3.2.2],
    doc/Devices.htm [1.13.2.2], doc/Drivers.htm [1.8.2.2],
    doc/Fonts.htm [1.8.2.2], doc/Helpers.htm [1.6.2.2],
    doc/History1.htm [1.3.2.2], doc/History2.htm [1.3.2.2],
    doc/History3.htm [1.3.2.2], doc/History4.htm [1.3.2.2]: 2000/11/28 01:31:21
    raph)

    Updates version number to 6.32 in preparation for release.
    (doc/History5.htm [1.5.2.2], doc/History6.htm [1.14.2.3],
    doc/Htmstyle.htm [1.6.2.2], doc/Install.htm [1.9.2.2],
    doc/Language.htm [1.19.2.2], doc/Lib.htm [1.3.2.2],
    doc/Maintain.htm [1.4.2.2], doc/Make.htm [1.15.2.2],
    doc/New-user.htm [1.13.2.2], doc/News.htm [1.65.2.2],
    doc/Projects.htm [1.19.2.2], doc/Ps2epsi.htm [1.4.2.2],
    doc/Ps2pdf.htm [1.18.2.2], doc/Psfiles.htm [1.8.2.2],
    doc/Readme.htm [1.13.2.2], doc/Release.htm [1.21.2.2],
    doc/Source.htm [1.3.2.2], doc/Tester.htm [1.3.2.2],
    doc/Unix-lpr.htm [1.3.2.2], doc/Use.htm [1.13.2.4],
    doc/Xfonts.htm [1.3.2.2], doc/gs-vms.hlp [1.3.2.2], man/dvipdf.1 [1.1.2.2],
    man/font2c.1 [1.1.2.2], man/gs.1 [1.1.2.2], man/gslp.1 [1.1.2.2],
    man/gsnd.1 [1.1.2.2], man/pdf2dsc.1 [1.1.2.2], man/pdf2ps.1 [1.3.2.2],
    man/pdfopt.1 [1.1.2.2], man/pf2afm.1 [1.1.2.2], man/pfbtopfa.1 [1.2.2.2],
    man/printafm.1 [1.1.2.2], man/ps2ascii.1 [1.1.2.2], man/ps2epsi.1 [1.1.2.2],
    man/ps2pdf.1 [1.5.2.2], man/ps2pdfwr.1 [1.2.2.2], man/ps2ps.1 [1.7.2.2],
    man/wftopfa.1 [1.1.2.2]: 2000/11/28 01:31:24 raph)

    Procedures

    Fixes problems:
    	- WMode was generally ignored in handling the metrics when rendering
    a Type 1 or Type 2 CharString; also, the default metrics for WMode = 1 were
    the same as the default metrics for WMode = 0, whereas (at least for
    CID-keyed fonts) they should be computed from the FontBBox. (fix from
    igor@artifex.com) (int.mak [1.37.2.2], lib.mak [1.36.2.1]: 2000/11/09
    21:56:58 rayjj)

    Collect some stray configuration related externs into iconf.h
    (int.mak [1.37.2.3]: 2000/11/09 22:39:35 rayjj)

    Adds DSC parsing capability to the PostScript interpreter, with an optional
    'feature' to use the DSC Orientation comments to compensate for sloppy
    PostScript producers that don't emit an appropriate setpagedevice command.
    (int.mak [1.37.2.4]: 2000/11/09 23:53:36 rayjj)

    Avoids exporting empty LD_RUN_PATH environment variable to the link process.
    This was causing binaries to search the current directory for libraries,
    which was a security hole. Fixes SourceForge bug 122532.
    (ugcclib.mak [1.5.2.1], unixlink.mak [1.2.2.1]: 2000/11/28 00:14:34 raph)

    Updates version number to 6.32 in preparation for release.
    (version.mak [1.22.2.2]: 2000/11/28 01:31:27 raph)

    Utilities

    Fixes problems:
    	- A { } was omitted around an arm of a conditional, causing a
    compilation error. (fix by ghost@aladdin.com corresponds to rev. 1.5)
    (gp_vms.c [1.4.2.1]: 2000/11/09 21:13:04 rayjj)
    	- The simple platform benchmarking program had gotten out of date,
    and would no longer compile and link. (fix by ghost@aladdin.com corresponds
    to rev. 1.4) (bench.c [1.3.2.1]: 2000/11/10 00:04:02 rayjj)

    Removes some old embryonic DSC parser code, since a complete third-party DSC
    parser is nearly ready for use. (corresponds to rev 1.2 action by
    ghost@aladdin.com) (gsdsc.c [1.1.2.1]: 2000/11/09 23:41:28 rayjj)

    Drivers

    Fixes problems:
    	- The margin settings for the Color LaserJet were incorrect. (fix
    from henrys@artifex.com) (gdevcljc.c [1.2.2.1]: 2000/11/09 20:31:45 rayjj)
    	- PDF patterns and masks could be compressed with the DCT filter,
    causing possible color distortion and loss of detail. (fix by
    ghost@aladdin.com) (gdevpsdf.h [1.8.2.1], gdevpsdi.c [1.12.2.1]: 2000/11/09
    23:24:18 rayjj)
    	- In PDF output, color values of 1.0 were usually written as 0.999.
    (bug introduced in version 6.22) (by ghost@aladdin.com corresponds to rev
    1.8) (gdevpsdu.c [1.7.2.1]: 2000/11/13 05:28:54 rayjj)
    	- Indirect area for StripByteCounts and StripOffsets was put in file
    even if there was only one strip so the value was direct.
    (gdevtifs.c [1.3.2.1]: 2000/11/16 01:39:55 rayjj)
    	- Invalid (uninitialized) StripByteCount was being left in file for
    the tiff12nc and tiff24nc devices. Needed to call gdev_tiff_end_strip().
    (gdevtfnx.c [1.3.2.1]: 2000/11/16 01:41:49 rayjj)

    PDF writer

    Fixes problems:
    	- Writing a Function with subfunctions (Functions array) could
    produce garbage output, because the subfunctions could be freed before the
    containing Function was written. (fix by ghost@aladdin.com corresponds to
    rev. 1.22) (gdevpdf.c [1.21.2.1]: 2000/11/09 20:34:17 rayjj)
    	- The PDF writer could write embedded Type 1 fonts with lenIV = -1,
    which Acrobat Reader 3 accepts but Acrobat Reader 4 doesn't. (fix by
    ghost@aladdin.com) (gdevpdfe.c [1.4.2.1]: 2000/11/09 20:37:29 rayjj)
    	- Incrementally downloaded Type 1 fonts weren't embedded properly in
    PDF output. (This might have been the case for some TrueType fonts as well,
    although we never observed it.) 9fix by ghost@aladdin.com corresponds to
    rev. 1.9) (gdevpdff.c [1.8.2.1]: 2000/11/09 20:40:29 rayjj)
    	- The algorithm for reducing the resolution of PDF output to deal
    with Acrobat Reader's 32K limit on user space coordinates was too
    conservative (reduced the resolution more than necessary). (fix by
    ghost@aladdin.com corresponds to rev. 1.12) (gdevpdfp.c [1.10.2.2]:
    2000/11/09 23:19:36 rayjj)
    	- Writing a shading with ShadingType >= 4 and data given by a stream
    rather than an array could cause a crash. (fix by ghost@aladdin.com
    corresponds to rev 1.4) (gdevpdfv.c [1.3.2.1]: 2000/11/09 23:21:47 rayjj)
    	- PDF patterns and masks could be compressed with the DCT filter,
    causing possible color distortion and loss of detail. (fix by
    ghost@aladdin.com) (gdevpdfb.c [1.2.2.1], gdevpdfv.c [1.3.2.2]: 2000/11/09
    23:24:18 rayjj)

    Updates the list of open PDF writer tasks to reflect recent progress.
    (change by ghost@aladdin.com corresponds to rev 1.11)
    (gdevpdfp.c [1.10.2.1]: 2000/11/09 23:17:37 rayjj)

    Interpreter (PDF)

    Fixes problems:
    	- The PDF interpreter caused an error if the output device wasn't a
    page device. (fix by ghost@aladdin.com corresponds to rev. 1.22)
    (lib/pdf_main.ps [1.19.2.3]: 2000/11/09 19:21:48 rayjj)

    Improves font substitution by taking the "Narrow" property into account.
    Fixes SourceForge bug 116460. Fix due to Leon Bottou.
    (lib/pdf_font.ps [1.12.2.1]: 2000/11/05 17:35:46 raph)

    Wraps the showpagecontents call in gsave/grestore, so that the graphics
    state for drawing annotations is pristine. Fixes Sourceforge bug 123310.
    (lib/pdf_main.ps [1.19.2.4]: 2000/11/25 21:58:19 raph)

    Interpreter

    Fixes problems:
    	- If an error occurred in a page device Install procedure, the
    stacks weren't restored properly, possibly leading to other errors. (fix by
    ghost@aladdin.com corresponds to rev. 1.6) (lib/gs_setpd.ps [1.5.2.1]:
    2000/11/09 18:46:55 rayjj)
    	- resourceforall was a procedure rather than an operator. Also adds
    an explicit acknowledgement that the method used for this fix is a hack.
    (fix by ghost@aladdin.com) (lib/gs_res.ps [1.13.2.1],
    lib/gs_setpd.ps [1.5.2.2]: 2000/11/09 18:54:57 rayjj)
    	- CIDFontType 2 fonts with a GlyphDirectory and string or string
    array CIDMap ignored GDBytes, causing an arithmetic error (division by
    zero). (SourceForge bug # 115942) (fix by ghost@aladdin.com)
    (zfcid.c [1.10.2.1], zfcid1.c [1.2.2.1]: 2000/11/09 23:04:44 rayjj)
    	- Most of the procedures in this file didn't use 'bind' (performance
    bug only). Fixing this sped up interpretation of PLRM.pdf by 40%! (fix by
    ghost@aladdin.com corresponds to rev 1.8) (lib/gs_cff.ps [1.7.2.1]:
    2000/11/09 23:08:47 rayjj)
    	- If the procedure of a FunctionType 4 Function was syntactically
    valid but exceeded the maximum stack depth, an attempt was made to free a
    string as an object, causing memory corruption. (fix by ghost@aladdin.com
    corresponds to rev. 1.6) (zfunc4.c [1.5.2.1]: 2000/11/12 21:33:46 rayjj)

    Add COMPILE_INITS information line to -h help output. (imainarg.c [1.6]:
    2000/11/04 06:13:42 rayjj)

    Add to GS_6_5 branch. (zdscpars.c [1.3.2.1]: 2000/11/07 18:26:52 rayjj)

    Return code variables (code and comment_code) in zparse_dsc_comments(). need
    to be signed. (zdscpars.c [1.3.2.2]: 2000/11/08 01:25:58 dancoby)

    Collect some stray configuration related externs into iconf.h
    (iconf.h [1.1.2.1], imain.c [1.2.2.1], imainarg.c [1.4.2.1]: 2000/11/09
    22:39:35 rayjj)

    Add COMPILE_INITS information line to -h help output. (imainarg.c [1.4.2.2]:
    2000/11/09 22:45:17 rayjj)

    Speeds up loading embedded CFF fonts some more, by adding some missing
    'bind's and similar tactics. (fix by ghost@aladdin.com corresponds to rev
    1.9) (lib/gs_cff.ps [1.7.2.2]: 2000/11/09 23:11:33 rayjj)

    Rewrites .parse_dsc_comment to use the parameter list machinery, removing a
    little functionally duplicated code; changes two incorrect uints to ints
    (fix from dan@artifex.com); adds additional comment types (BoundingBox,
    PageBoundingBox, BeginDefaults, EndDefaults) to the interface. (fix by
    ghost@aladdin.com corresponds to rev. 1.5) (zdscpars.c [1.3.2.3]: 2000/11/09
    23:43:39 rayjj)

    Add to GS_6_5 branch (lib/gs_dscp.ps [1.2.2.1]: 2000/11/09 23:47:04 rayjj)

    Adds DSC parsing capability to the PostScript interpreter, with an optional
    'feature' to use the DSC Orientation comments to compensate for sloppy
    PostScript producers that don't emit an appropriate setpagedevice command.
    (dscparse.c [1.1.2.1], dscparse.h [1.1.2.1]: 2000/11/09 23:53:36 rayjj)

    DSC parser changes: adds %%ViewerOrientation to DSC parser; doesn't flag an
    error if %%Pages is absent but one %%Page is found; frees memory if
    initialization fails; recognizes general whitespace in some places where
    only spaces were recognized before. (changes from gsview@ghostgum.com.au)
    (fix corresponds to rev 1.2 of both files). (dscparse.c [1.1.2.2],
    dscparse.h [1.1.2.2]: 2000/11/13 06:01:30 rayjj)

    Changes .buildshading to always apply a ReusableStreamDecode filter to file
    and stream DataSources, so that multiple passes over the stream work. This
    patch closes SourceForge bug 121810. (lib/gs_ll3.ps [1.6.2.1]: 2000/11/16
    00:37:03 raph)

    Updates version number to 6.32 in preparation for release.
    (lib/gs_init.ps [1.25.2.2]: 2000/11/28 01:31:26 raph)

    Streams

    Fixes problems:
    	- The ASCII85Decode filter sometimes asked for too much output
    space, which caused a limitcheck error on ASCII85 strings whose decoded size
    was 65533 - 65535 bytes. (fix by ghost@aladdin.com corresponds to rev 1.3)
    (sa85d.c [1.2.2.1]: 2000/11/09 22:57:10 rayjj)

    Library

    Fixes problems:
    	- Fixes infinite loops when writing large bitmaps into clist. Now,
    cmd_put_bits never requests an allocation in the clist buffer larger than
    cbuf_size. (gxclbits.c [1.2.2.1]: 2000/11/05 18:47:27 raph)
    	- The PDF writer could write embedded Type 1 fonts with lenIV = -1,
    which Acrobat Reader 3 accepts but Acrobat Reader 4 doesn't. (fix by
    ghost@aladdin.com) (gdevpsf.h [1.7.2.1], gdevpsf1.c [1.5.2.1]: 2000/11/09
    20:37:29 rayjj)
    	- Sampling the spot function for a halftone didn't correctly sample
    at the centers of device space pixels, causing moire' effects and irregular
    variations in spot size. (fix from igor@artifex.com corresponds to 1.4)
    (gshtscr.c [1.3.2.1], gzht.h [1.3.2.1]: 2000/11/09 21:26:51 rayjj)
    	- Getting the glyph_info of a Type 2 CharString could cause an
    invalid memory access. (SourceForge bug # 121070) (fix by ghost@aladdin.com
    corresponds to rev 1.8) (gstype2.c [1.7.2.1]: 2000/11/09 21:28:19 rayjj)
    	- TrueType glyphs with more than 200 points caused a crash or
    corrupted memory. (fix by ghost@aladdin.com corresponds to rev 1.8)
    (gstype42.c [1.7.2.1]: 2000/11/09 21:30:39 rayjj)
    	- Type 42 / TrueType fonts didn't clear the pointers to the metrics
    tables in the font, possibly producing incorrect metrics or memory access
    errors for fonts that lack one or more of hhea, hmtx, vhea, or vmtx. (fix
    from henrys@artifex.com corresponds to rev. 1.9) (gstype42.c [1.7.2.2]:
    2000/11/09 21:32:30 rayjj)
    	- Works around an Acrobat Reader 4 bug that causes AR4 to draw a
    single pixel, rather than nothing, when filling a subpath consisting only of
    a moveto. (fix by ghost@aladdin.com corresponds to rev. 1.8)
    (gdevvec.c [1.7.2.1]: 2000/11/09 23:25:38 rayjj)
    	- Several places in the band list code didn't call s_init_state to
    initialize locally allocated stream states: this is now required (see the
    "Incompatible changes" section). (fix by ghost@aladdin.com)
    (gxclbits.c [1.2.2.2], gxcldev.h [1.3.2.1], gxclread.c [1.2.2.1],
    gxclutil.c [1.2.2.1]: 2000/11/09 23:36:53 rayjj)
    	- The pdfwrite and pswrite drivers could emit a lineto or rlineto
    without a moveto at the beginning of the path. (bug introduced very
    recently, by a workaround for an Acrobat Reader bug) (fix by
    ghost@aladdin.com corresponds to rev. 1.9 to rev 1.10 change)
    (gdevvec.c [1.7.2.2]: 2000/11/14 17:20:05 rayjj)
    	- Attempting to write a CFF Type 2 font larger than 32K but smaller
    than 64K caused a rangecheck. (fix by ghost@aladdin.com corresponds to rev.
    1.8) (gdevpsf2.c [1.7.2.1]: 2000/11/19 19:03:19 rayjj)
    	- Computing the default width or the fixed width for a CIDFont or
    TrueType font could do a huge amount of unnecessary work. (Probably only
    affects the PDF writer.) (fix by ghost@aladdin.com corresponds to rev 1.3)
    (gsfont.c [1.2.2.1]: 2000/11/21 00:20:28 rayjj)
    	- The code for writing a CIDFontType0 CFF font mistook Type 2
    CharStrings for Type 1, and tried to convert them to Type 2. (This currently
    affects only the PDF writer.) (fix by ghost@aladdin.com corresponds to rev
    1.9) (gdevpsf2.c [1.7.2.2]: 2000/11/21 05:46:25 rayjj)
    	- The Type 1 to Type 2 CharString converter (currently used only by
    the PDF writer) often didn't detect invalid CharStrings as input. (fix by
    ghost@aladdin.com corresponds to rev 1.6) (gdevpsfx.c [1.5.2.1]: 2000/11/21
    05:52:15 rayjj)

    Works around a bug in the DEC VMS C compiler, which incorrectly defines the
    second argument of fdopen as (char *) rather than (const char *). (fix by
    ghost@aladdin.com corresponds to rev. 1.8) (gpmisc.c [1.7.2.1]: 2000/11/09
    21:18:00 rayjj)

    Version 6.31 (2000-11-03)

    This fileset consists of a beta release.

    The following projects are in a partially completed state:

    CID-keyed fonts in the PDF writer (gdevpdf[eftw].c) -- barely started.

    Incompatible changes

    (Procedures)
    	- The -Zv and -ZV switches now trace alpha/transparency features.
    	- The program name is now AFPL Ghostscript rather than Aladdin
    Ghostscript.
    	- The default Windows installation directory is now c:\gs rather
    than c:\Aladdin.
    (Utilities)
    	- lib/pdfeof.ps is deleted; its functionality is included in the
    standard code.
    (Drivers)
    	- The X driver now implements sync_output using XSync(False) rather
    than XFlush().
    (Library)
    	- gdev_vector_dopath now never returns 1.
    	- Color space types now have a new, required, "equal" procedure.

    Documentation

    Increases version number to 6.31 in preparation for fileset release.
    (doc/Bug-form.htm [1.9.2.1], doc/Bug-info.htm [1.7.2.1],
    doc/C-style.htm [1.4.2.1], doc/Commprod.htm [1.3.2.1],
    doc/Copying.htm [1.3.2.1], doc/Current.htm [1.3.2.1], doc/DLL.htm [1.3.2.1],
    doc/Devices.htm [1.13.2.1], doc/Drivers.htm [1.8.2.1],
    doc/Fonts.htm [1.8.2.1], doc/Helpers.htm [1.6.2.1],
    doc/History1.htm [1.3.2.1], doc/History2.htm [1.3.2.1],
    doc/History3.htm [1.3.2.1], doc/History4.htm [1.3.2.1],
    doc/History5.htm [1.5.2.1], doc/History6.htm [1.14.2.1],
    doc/Htmstyle.htm [1.6.2.1], doc/Install.htm [1.9.2.1],
    doc/Language.htm [1.19.2.1], doc/Lib.htm [1.3.2.1],
    doc/Maintain.htm [1.4.2.1], doc/Make.htm [1.15.2.1],
    doc/New-user.htm [1.13.2.1], doc/News.htm [1.65.2.1],
    doc/Projects.htm [1.19.2.1], doc/Ps2epsi.htm [1.4.2.1],
    doc/Ps2pdf.htm [1.18.2.1], doc/Psfiles.htm [1.8.2.1], doc/README [1.4.2.1],
    doc/Readme.htm [1.13.2.1], doc/Release.htm [1.21.2.1],
    doc/Source.htm [1.3.2.1], doc/Tester.htm [1.3.2.1],
    doc/Unix-lpr.htm [1.3.2.1], doc/Use.htm [1.13.2.2],
    doc/Xfonts.htm [1.3.2.1], doc/gs-vms.hlp [1.3.2.1]: 2000/11/04 01:15:29
    raph)

    Increases version number to 6.31 in preparation for fileset release.
    (man/dvipdf.1 [1.1.2.1], man/font2c.1 [1.1.2.1], man/gs.1 [1.1.2.1],
    man/gslp.1 [1.1.2.1], man/gsnd.1 [1.1.2.1], man/pdf2dsc.1 [1.1.2.1],
    man/pdf2ps.1 [1.3.2.1], man/pdfopt.1 [1.1.2.1], man/pf2afm.1 [1.1.2.1],
    man/pfbtopfa.1 [1.2.2.1], man/printafm.1 [1.1.2.1],
    man/ps2ascii.1 [1.1.2.1], man/ps2epsi.1 [1.1.2.1], man/ps2pdf.1 [1.5.2.1],
    man/ps2pdfwr.1 [1.2.2.1], man/ps2ps.1 [1.7.2.1], man/wftopfa.1 [1.1.2.1]:
    2000/11/04 01:15:32 raph)

    Procedures

    Fixes problems:
    	- The build process terminated with an error on some versions of MS
    Windows, because the ERASE command returned an error status if the file did
    not exist (change from ghost@aladdin.com). (winlib.mak [1.4.2.1]: 2000/11/02
    19:39:53 igorm)

    Extends the Font resource category so that composed fonts, with names
    - or -- where the CIDSystemInfo of the CIDFont
    and CMap are compatible, appear to exist and are actually created
    dynamically when needed. (int.mak [1.37.2.1]: 2000/11/02 19:53:02 igorm)

    Increases version number to 6.31 in preparation for fileset release.
    (version.mak [1.22.2.1]: 2000/11/04 01:15:32 raph)

    Interpreter

    Fixes problems:
    	- Output filters with a procedure target didn't pass 'false' as the
    second argument to the procedure when closing the stream. (fix by
    ghost@aladdin.com corresponds to revision 1.5) (zfproc.c [1.4.2.2]:
    2000/11/03 01:14:31 rayjj)

    Increases version number to 6.31 in preparation for fileset release.
    (lib/gs_init.ps [1.25.2.1]: 2000/11/04 01:15:32 raph)

    Library

    Version 6.30 (2000-10-03)

    This fileset consists of a beta release.

    The following projects are in a partially completed state:

    CID-keyed fonts in the PDF writer (gdevpdf[eftw].c) -- barely started.

    Incompatible changes

    (Procedures)
    	- The -Zv and -ZV switches now trace alpha/transparency features.
    	- The program name is now AFPL Ghostscript rather than Aladdin
    Ghostscript.
    	- The default Windows installation directory is now c:\gs rather
    than c:\Aladdin.
    (Utilities)
    	- lib/pdfeof.ps is deleted; its functionality is included in the
    standard code.
    (Drivers)
    	- The X driver now implements sync_output using XSync(False) rather
    than XFlush().
    (Library)
    	- gdev_vector_dopath now never returns 1.
    	- Color space types now have a new, required, "equal" procedure.

    Documentation

    Fixes problems:
    	- the "User parameters" section was incorrectly titled "Device
    parameters". (doc/Language.htm [1.11]: 2000/08/17 17:00:42 lpd)

    Initializes files for the 6.24 fileset. (doc/News.htm [1.57]: 2000/08/09
    16:54:01 lpd)

    Adds Alex Cherepanov to the roster of helpers. (doc/Helpers.htm [1.2]:
    2000/08/09 16:54:39 lpd)

    Documents the -dDEVICE{WIDTH,HEIGHT}POINTS= switches. (doc/Use.htm [1.10]:
    2000/08/17 01:31:52 lpd)

    Notes the change in the return value of gdev_vector_dopath.
    (doc/News.htm [1.58]: 2000/08/20 00:20:42 lpd)

    Changes text to make it clear that Yves Arrouye no longer maintains the BJC
    drivers that he wrote. (doc/Devices.htm [1.11]: 2000/08/21 14:38:27 lpd)

    Puts the logic for detecting garbage after %%EOF (and some similar invalid
    constructs) back into the main code, making it produce a message on stderr.
    (doc/Psfiles.htm [1.6]: 2000/08/23 02:22:39 lpd)

    Documents the deletion of lib/pdfeof.ps. (doc/News.htm [1.59]: 2000/08/23
    02:23:54 lpd)

    Starts to implement the PDF 1.4 transparency features. All API and operator
    additions are now implemented (at least as stubs) and documented, as is
    bookkeeping for the new scalar graphics state members (but not for the soft
    masks or the transparency group stack). (doc/Language.htm [1.12]: 2000/08/23
    21:46:31 lpd)

    Adds a project to avoid DCT-decoding followed by DCT-encoding images when
    writing PDF files. (doc/Projects.htm [1.16]: 2000/08/24 03:43:12 lpd)

    Adds a new equality-testing virtual procedure for color spaces.
    (doc/News.htm [1.60]: 2000/08/24 05:42:30 lpd)

    Brings the (still mostly stubbed) transparency code to a more
    self-consistent state. (doc/Language.htm [1.13]: 2000/08/30 01:34:40 lpd)

    Completes the parsing of .{begin,end}transparency{group,mask}, except for
    the TransferFunction for masks. The specification is still subject to
    change. (doc/Language.htm [1.14]: 2000/08/30 15:03:36 lpd)

    Divides the list of documents according to whether the document is for
    users, for developers, or both. (doc/Readme.htm [1.11]: 2000/08/30 21:24:00
    lpd)

    Adds more documentation for the transparency rendering stack.
    (doc/Language.htm [1.15]: 2000/08/31 03:34:41 lpd)

    Adds a requirement to only use ANSI standard C library facilities.
    (doc/C-style.htm [1.2]: 2000/09/08 04:53:14 lpd)

    Changes the -Zv switch to trace alpha/transparency-related features.
    (doc/News.htm [1.61], doc/Use.htm [1.11]: 2000/09/10 05:23:10 lpd)

    Implements another chunk of the PDF 1.4 transparency features, fixing some
    bugs in the previous code. (doc/Language.htm [1.16]: 2000/09/10 05:26:27
    lpd)

    Documents the addition of (limited) PDF 1.4 output capabilities.
    (doc/Ps2pdf.htm [1.16]: 2000/09/11 02:08:58 lpd)

    Moves the Matte entry of soft mask images from the main structure to the
    mask structures, and changes Matted to has_Matte. (doc/Language.htm [1.17]:
    2000/09/11 04:08:13 lpd)

    Documents division of bug-gs mailbox into bug-gs, bug-gs-dev, and
    bug-gs-beta. (doc/Bug-form.htm [1.7], doc/Bug-info.htm [1.5]: 2000/09/15
    23:44:21 lpd)

    Adds a paragraph explaining why and how the AFPL is not an Open Source /
    Free Software license. (doc/PUBLIC [1.2], doc/Public.htm [1.2]: 2000/09/18
    22:26:32 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript; also updates many internal references from
    Aladdin Ghostscript to AFPL Ghostscript, and from Aladdin Enterprises to
    artofcode LLC. (doc/Bug-form.htm [1.8], doc/Bug-info.htm [1.6],
    doc/C-style.htm [1.3], doc/Changes.htm [1.17], doc/Commprod.htm [1.2],
    doc/Copying.htm [1.2], doc/Current.htm [1.2], doc/DLL.htm [1.2],
    doc/Devices.htm [1.12], doc/Drivers.htm [1.7], doc/Fonts.htm [1.7],
    doc/Helpers.htm [1.3], doc/History1.htm [1.2], doc/History2.htm [1.2],
    doc/History3.htm [1.2], doc/History4.htm [1.2], doc/History5.htm [1.4],
    doc/History6.htm [1.12], doc/Htmstyle.htm [1.5], doc/Install.htm [1.6],
    doc/Language.htm [1.18], doc/Lib.htm [1.2], doc/Maintain.htm [1.3],
    doc/Make.htm [1.14], doc/New-user.htm [1.11], doc/News.htm [1.62],
    doc/PUBLIC [1.3], doc/Projects.htm [1.17], doc/Ps2epsi.htm [1.3],
    doc/Ps2pdf.htm [1.17], doc/Psfiles.htm [1.7], doc/Public.htm [1.3],
    doc/Readme.htm [1.12], doc/Release.htm [1.18], doc/Source.htm [1.2],
    doc/Tester.htm [1.2], doc/Unix-lpr.htm [1.2], doc/Use.htm [1.12],
    doc/Xfonts.htm [1.2], doc/gs-vms.hlp [1.2]: 2000/09/19 21:37:50 lpd)

    Updates README from Readme.htm. (doc/README [1.3]: 2000/09/19 23:39:31 lpd)

    Changes the default Windows installation directory from c:\Aladdin to c:\gs.
    (doc/Install.htm [1.7], doc/News.htm [1.63]: 2000/09/22 05:32:17 lpd)

    Replaces the OpenVMS installation instructions with an improved set
    contributed by a user. (doc/Helpers.htm [1.4], doc/Install.htm [1.8]:
    2000/09/22 20:33:19 lpd)

    Adds a project for fixing PDF files that have gotten mangled by EOL
    conversion. (doc/Projects.htm [1.18]: 2000/09/25 14:40:37 lpd)

    Adds a reference to PreScript, another free text extraction program based on
    Ghostscript. (doc/New-user.htm [1.12]: 2000/09/26 01:04:40 lpd)

    Documentation changes in preparation for 6.30 release. Replaced some contact
    information, updated version numbers. (doc/Bug-form.htm [1.9],
    doc/Bug-info.htm [1.7], doc/Commprod.htm [1.3], doc/Copying.htm [1.3],
    doc/Current.htm [1.3], doc/DLL.htm [1.3], doc/Devices.htm [1.13],
    doc/Drivers.htm [1.8], doc/Fonts.htm [1.8], doc/Helpers.htm [1.5],
    doc/History1.htm [1.3], doc/History2.htm [1.3], doc/History3.htm [1.3],
    doc/History4.htm [1.3], doc/History5.htm [1.5], doc/History6.htm [1.13],
    doc/Htmstyle.htm [1.6], doc/Install.htm [1.9], doc/Language.htm [1.19],
    doc/Lib.htm [1.3], doc/Maintain.htm [1.4], doc/Make.htm [1.15],
    doc/New-user.htm [1.13], doc/News.htm [1.64], doc/Projects.htm [1.19],
    doc/Ps2epsi.htm [1.4], doc/Ps2pdf.htm [1.18], doc/Psfiles.htm [1.8],
    doc/README [1.4], doc/Readme.htm [1.13], doc/Release.htm [1.19],
    doc/Source.htm [1.3], doc/Tester.htm [1.3], doc/Unix-lpr.htm [1.3],
    doc/Use.htm [1.13], doc/Xfonts.htm [1.3], doc/gs-vms.hlp [1.3]: 2000/10/04
    04:33:27 raph)

    Bring version numbers and dates up to date. Small bug fix in toolbin/pre to
    make it able to handle months with leading zeros. (doc/C-style.htm [1.4],
    doc/Helpers.htm [1.6], man/ps2ps.1 [1.7]: 2000/10/04 05:18:54 raph)

    Procedures

    Fixes problems:
    	- The PostScript image writing drivers (psmono/gray/rgb) didn't set
    the page size in the output, and didn't produce DSC-compliant output.
    (devs.mak [1.31]: 2000/08/09 06:55:45 lpd)
    	- The FlateEncode and zlibEncode filters didn't implement the
    "Effort" parameter. (fix from Alex Cherepanov) (int.mak [1.28]: 2000/08/09
    16:55:24 lpd)
    	- Because "-" as an OutputFile now references the %stdout IODevice,
    it no longer worked in configurations without a PostScript interpreter.
    Fixing this required factoring out the stdin/out/err IODevices and providing
    an implementation that didn't reference the PostScript interpreter.
    (int.mak [1.32], lib.mak [1.34], ugcclib.mak [1.3]: 2000/09/07 06:14:45 lpd)
    	- Configurations including PDF but not PostScript didn't include all
    the PostScript LL3 features needed to interpret PDF 1.3 et seq.
    (int.mak [1.33]: 2000/09/07 06:35:06 lpd)
    	- Cleans up some missing and incorrect dependencies.
    (devs.mak [1.33], int.mak [1.34], lib.mak [1.35]: 2000/09/11 04:43:09 lpd)
    	- The definition of PSRCDIR was inconsistent with the definition of
    PVERSION. (openvms.mak [1.5]: 2000/09/22 04:05:40 lpd)
    	- The pgnm and pnm drivers didn't properly detect the presence of
    gray shades or color in images, sometimes causing gray or color information
    to be lost in the output. (fix contributed by a user) (devs.mak [1.35]:
    2000/09/23 04:52:56 lpd)

    Initializes files for the 6.24 fileset. (version.mak [1.19]: 2000/08/09
    16:54:02 lpd)

    Adds a mention of the Color LaserJet 4500 as a color PCL XL printer.
    (devs.mak [1.32]: 2000/08/17 20:43:50 lpd)

    Changes text to make it clear that Yves Arrouye no longer maintains the BJC
    drivers that he wrote. (contrib.mak [1.19]: 2000/08/21 14:38:28 lpd)

    Puts the logic for detecting garbage after %%EOF (and some similar invalid
    constructs) back into the main code, making it produce a message on stderr.
    (unixinst.mak [1.12]: 2000/08/23 02:22:39 lpd)

    Starts to implement the PDF 1.4 transparency features. All API and operator
    additions are now implemented (at least as stubs) and documented, as is
    bookkeeping for the new scalar graphics state members (but not for the soft
    masks or the transparency group stack). (int.mak [1.29], lib.mak [1.30]:
    2000/08/23 21:46:31 lpd)

    Adds a new equality-testing virtual procedure for color spaces.
    (lib.mak [1.31]: 2000/08/24 05:42:30 lpd)

    Partly implements opacity and shape mask bookkeeping. gsave/grestore/etc.
    and banding don't do the right thing yet. (int.mak [1.30],
    version.mak [1.20]: 2000/08/25 01:46:48 lpd)

    Brings the (still mostly stubbed) transparency code to a more
    self-consistent state. (lib.mak [1.32]: 2000/08/30 01:34:40 lpd)

    Finishes the code for parsing ImageType 103 (soft-mask) images.
    (int.mak [1.31], lib.mak [1.33]: 2000/08/30 04:30:05 lpd)

    *** empty log message *** (int.mak [1.35]: 2000/09/14 19:46:05 alexcher)

    Undoes uncommented and in some cases inappropriate changes. (int.mak [1.36]:
    2000/09/18 06:28:58 lpd)

    Updates license notices to reference the AFPL (like the rest of Ghostscript)
    rather than simply saying "All rights reserved". (toolbin/3way.tcl [1.2],
    toolbin/cvs2hist.py [1.2], toolbin/errlist.tcl [1.2],
    toolbin/gsindent [1.2], toolbin/gsmake.tcl [1.4], toolbin/headers.tcl [1.2],
    toolbin/leaks.tcl [1.2], toolbin/makegnu.tcl [1.2],
    toolbin/makeset.tcl [1.4], toolbin/pre [1.6], toolbin/precheck.tcl [1.2],
    toolbin/suite.tcl [1.2], toolbin/tmake.tcl [1.2]: 2000/09/19 17:30:25 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, and changes internal references in various
    scripts. (toolbin/3way.tcl [1.3], toolbin/cvs2hist.py [1.3],
    toolbin/errlist.tcl [1.3], toolbin/gsindent [1.3], toolbin/gsmake.tcl [1.5],
    toolbin/headers.tcl [1.3], toolbin/leaks.tcl [1.3],
    toolbin/makegnu.tcl [1.3], toolbin/makeset.tcl [1.5], toolbin/pre [1.7],
    toolbin/precheck.tcl [1.3], toolbin/suite.tcl [1.3],
    toolbin/tmake.tcl [1.3]: 2000/09/19 18:10:51 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (all-arch.mak [1.5], bcwin32.mak [1.3], cfonts.mak [1.2],
    contrib.mak [1.20], devs.mak [1.34], dvx-gcc.mak [1.4], dvx-head.mak [1.2],
    dvx-tail.mak [1.3], dwmain.rc [1.2], dwsetup.def [1.2], dwsetup.rc [1.2],
    dwuninst.def [1.2], dwuninst.rc [1.3]: 2000/09/19 19:00:08 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gs.mak [1.2], gs16spl.rc [1.2], gsdll2.rc [1.2],
    gsdll32.rc [1.2]: 2000/09/19 19:00:25 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gsos2.rc [1.2], gspmdrv.rc [1.2]: 2000/09/19 19:00:30 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gswin.rc [1.2]: 2000/09/19 19:00:33 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (int.mak [1.37], jpeg.mak [1.3], lib.mak [1.36],
    libpng.mak [1.2], msvc32.mak [1.5], msvccmd.mak [1.5], msvclib.mak [1.5],
    msvctail.mak [1.4], openvms.mak [1.4], openvms.mmk [1.5], os2.mak [1.7],
    pcwin.mak [1.2]: 2000/09/19 19:00:45 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (ugcclib.mak [1.4], unix-aux.mak [1.3], unix-end.mak [1.2],
    unix-gcc.mak [1.7], unixansi.mak [1.5], unixhead.mak [1.2],
    unixinst.mak [1.13], unixlink.mak [1.2], unixtrad.mak [1.5],
    version.mak [1.21], watc.mak [1.5], watclib.mak [1.5], watcw32.mak [1.4],
    wccommon.mak [1.3], wctail.mak [1.2], winint.mak [1.5], winlib.mak [1.4],
    winplat.mak [1.2], wmin.mak [1.2], zlib.mak [1.2]: 2000/09/19 19:00:52 lpd)

    Add commands to make the target GLGENDIR and BINDIR directories so that a
    clean build works automatically. (msvctail.mak [1.5]: 2000/09/21 15:14:37
    rayjj)

    Changes the default Windows installation directory from c:\Aladdin to c:\gs.
    (dwsetup.rc [1.3]: 2000/09/22 05:32:17 lpd)

    Changes the default Windows Start Menu Folder from "Aladdin" to
    "Ghostscript". (dwsetup.rc [1.4]: 2000/09/22 05:35:02 lpd)

    Updates the makefiles from libpng version 1.0.5 to 1.0.8.
    (all-arch.mak [1.6], bcwin32.mak [1.4], dvx-gcc.mak [1.5], libpng.mak [1.3],
    msvc32.mak [1.6], msvclib.mak [1.6], openvms.mak [1.6], openvms.mmk [1.6],
    os2.mak [1.8], ugcclib.mak [1.5], unix-gcc.mak [1.8], unixansi.mak [1.6],
    unixtrad.mak [1.6], watc.mak [1.6], watclib.mak [1.6], watcw32.mak [1.5]:
    2000/09/25 15:06:28 lpd)

    Documentation changes in preparation for 6.30 release. Replaced some contact
    information, updated version numbers. (version.mak [1.22]: 2000/10/04
    04:33:29 raph)

    Bring version numbers and dates up to date. Small bug fix in toolbin/pre to
    make it able to handle months with leading zeros. (toolbin/pre [1.8]:
    2000/10/04 05:18:54 raph)

    Utilities

    Fixes problems:
    	- ps2pdf13.cmd set the output PDF version to 1.2 rather than 1.3.
    (lib/ps2pdf13.cmd [1.2]: 2000/09/10 19:32:44 lpd)
    	- The OpenVMS Fontmap had gotten badly out of date; specifically, it
    didn't reference the URW++ fonts distributed with Ghostscript.
    (lib/Fontmap.VMS [1.2]: 2000/09/22 03:30:21 lpd)

    Puts the logic for detecting garbage after %%EOF (and some similar invalid
    constructs) back into the main code, making it produce a message on stderr.
    (lib/pdfeof.ps [1.2]: 2000/08/23 02:22:39 lpd)

    Adds script / batch / command files for producing PDF 1.4 output.
    (lib/ps2pdf14 [1.1], lib/ps2pdf14.bat [1.1], lib/ps2pdf14.cmd [1.1]:
    2000/09/10 19:33:47 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, and changes a few other internal
    references. (lib/Fontmap.ATB [1.2], lib/Fontmap.ATM [1.2],
    lib/Fontmap.GS [1.2], lib/Fontmap.OS2 [1.2], lib/Fontmap.SGI [1.2],
    lib/Fontmap.Sol [1.2], lib/Fontmap.Ult [1.2], lib/addxchar.ps [1.2],
    lib/afmdiff.awk [1.2], lib/align.ps [1.2], lib/bdftops.ps [1.2],
    lib/caption.ps [1.2], lib/cbjc600.ppd [1.2], lib/cbjc800.ppd [1.2],
    lib/cid2code.ps [1.2], lib/docie.ps [1.2], lib/errpage.ps [1.2],
    lib/font2c.ps [1.2], lib/font2pcl.ps [1.2], lib/gslp.ps [1.2],
    lib/gsnup.ps [1.2], lib/image-qa.ps [1.2], lib/impath.ps [1.2],
    lib/jispaper.ps [1.2], lib/lines.ps [1.2], lib/markhint.ps [1.2],
    lib/markpath.ps [1.2], lib/packfile.ps [1.2], lib/pcharstr.ps [1.2],
    lib/pdf2dsc.ps [1.2], lib/pdfopt.ps [1.3], lib/pdfwrite.ps [1.3],
    lib/pfbtopfa.ps [1.2], lib/ppath.ps [1.2], lib/ps2ai.ps [1.2],
    lib/ps2ascii.ps [1.2], lib/ps2epsi [1.4], lib/ps2epsi.ps [1.4],
    lib/showchar.ps [1.2], lib/stcinfo.ps [1.2], lib/stcolor.ps [1.2],
    lib/stocht.ps [1.3], lib/traceimg.ps [1.2], lib/traceop.ps [1.2],
    lib/type1enc.ps [1.2], lib/type1ops.ps [1.2], lib/uninfo.ps [1.2],
    lib/unprot.ps [1.2], lib/viewcmyk.ps [1.2], lib/viewgif.ps [1.2],
    lib/viewmiff.ps [1.2], lib/viewpbm.ps [1.2], lib/viewpcx.ps [1.2],
    lib/viewps2a.ps [1.2], lib/wftopfa.ps [1.2], lib/winmaps.ps [1.2],
    lib/wrfont.ps [1.2], lib/zeroline.ps [1.2]: 2000/09/19 18:29:11 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (bench.c [1.3], echogs.c [1.2]: 2000/09/19 19:00:08 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (genarch.c [1.2], genconf.c [1.3], gendev.c [1.2],
    genht.c [1.2], geninit.c [1.3], gp_dvx.c [1.2], gp_iwatc.c [1.4],
    gp_mktmp.c [1.2], gp_mshdl.c [1.2], gp_msio.c [1.2], gp_mslib.c [1.2],
    gp_mswin.c [1.3], gp_ntfs.c [1.4], gp_os2.c [1.4], gp_os9.c [1.3],
    gp_sysv.c [1.2], gp_unix.c [1.3], gp_vms.c [1.4], gp_wgetv.c [1.3],
    gp_win32.c [1.2], gp_wsync.c [1.2], gs16spl.c [1.2]: 2000/09/19 19:00:23
    lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gsdll.c [1.3], gserver.c [1.2]: 2000/09/19 19:00:27 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gspmdrv.c [1.2]: 2000/09/19 19:00:31 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (scfdgen.c [1.2]: 2000/09/19 19:00:48 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (zdosio.c [1.2]: 2000/09/19 19:00:53 lpd)

    When GSC environment variable is not set, gssetgs.bat fails to set it, which
    makes ps2pdf.bat and several other scripts fail on Windows NT 4.0 with the
    following misleading error message: "_.at" This file doesn't have a program
    associated with it ... This change fixes the problem.
    (lib/gssetgs.bat [1.2]: 2000/10/01 15:25:37 alexcher)

    Drivers

    Fixes problems:
    	- The PostScript image writing drivers (psmono/gray/rgb) didn't set
    the page size in the output, and didn't produce DSC-compliant output.
    (gdevps.c [1.11], gdevpsci.c [1.2], gdevpsim.c [1.3], gdevpsu.c [1.1],
    gdevpsu.h [1.1]: 2000/08/09 06:55:45 lpd)
    	- the user-contributed cfax driver didn't correctly handle page
    widths other than the standard fax widths, and didn't write the required
    end-of-document marker. (gdevcfax.c [1.2]: 2000/08/17 04:43:25 lpd)
    	- Setting parameters for the PS/PDF writer reset any unspecified
    *Dict parameter dictionaries to the empty dictionary, rather than leaving
    them alone. (gdevpsdp.c [1.6]: 2000/08/18 03:18:59 lpd)
    	- BJC printers with different X and Y resolution produced incorrect
    output. Also removes the comment asking users to report problems to Yves
    Arrouye, since he no longer maintains this code. (gdevcdj.c [1.3]:
    2000/08/21 14:43:17 lpd)
    	- The emulation of XPutImage (Ghostscript*useXPutImage: 0) was
    broken. (gdevx.c [1.6]: 2000/08/21 17:23:26 lpd)
    	- Dictionary-valued device parameters for high-level devices could
    be freed while the device still referred to them. (gdevpsdp.c [1.7]:
    2000/08/31 15:55:46 lpd)
    	- Cleans up some missing and incorrect dependencies.
    (gdevsco.c [1.2]: 2000/09/11 04:43:09 lpd)
    	- Works around a gcc code generation bug that sometimes caused gray
    colors to be written out as RGB in PDF files. (Minor performance issue
    only.) (gdevpsdu.c [1.6]: 2000/09/11 21:12:12 lpd)
    	- The pgnm and pnm drivers didn't properly detect the presence of
    gray shades or color in images, sometimes causing gray or color information
    to be lost in the output. (fix contributed by a user) (gdevpbm.c [1.3]:
    2000/09/23 04:52:57 lpd)

    In the X Windows driver, changes XFlush() to XSync(False) so that updates
    will actually complete before the command prompt appears. (gdevx.c [1.5],
    gdevxini.c [1.8]: 2000/08/19 03:31:44 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdev3852.c [1.2], gdev3b1.c [1.2], gdev4081.c [1.2],
    gdev8510.c [1.2], gdev8bcm.c [1.2], gdev8bcm.h [1.2], gdevadmp.c [1.2],
    gdevatx.c [1.6], gdevbit.c [1.2], gdevbj10.c [1.3], gdevbjc.h [1.2],
    gdevbjcl.c [1.2], gdevbjcl.h [1.2], gdevbmp.c [1.3], gdevbmp.h [1.2],
    gdevbmpa.c [1.3], gdevbmpc.c [1.2], gdevccr.c [1.2], gdevcdj.c [1.4],
    gdevcfax.c [1.3], gdevcgm.c [1.2], gdevcgml.c [1.2], gdevcgml.h [1.2],
    gdevcgmx.h [1.2], gdevcif.c [1.2], gdevclj.c [1.2], gdevcljc.c [1.2],
    gdevcp50.c [1.2], gdevcslw.c [1.2], gdevdcrd.c [1.2], gdevdcrd.h [1.2],
    gdevdfax.c [1.3], gdevdjet.c [1.6], gdevdjtc.c [1.2], gdevdljm.c [1.4],
    gdevdljm.h [1.4], gdevdm24.c [1.2], gdevegaa.asm [1.2], gdevepsc.c [1.2],
    gdevepsn.c [1.2], gdevescp.c [1.2], gdevevga.c [1.2], gdevfax.c [1.2],
    gdevfax.h [1.2], gdevherc.c [1.2], gdevhl7x.c [1.3], gdevimgn.c [1.2],
    gdevjpeg.c [1.2], gdevl256.c [1.3], gdevl31s.c [1.2], gdevlbp8.c [1.2],
    gdevlj56.c [1.2], gdevlp8k.c [1.2], gdevlxm.c [1.2], gdevmeds.c [1.2]:
    2000/09/19 19:00:11 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevmeds.h [1.2], gdevmgr.c [1.2], gdevmgr.h [1.2],
    gdevmiff.c [1.2], gdevmswn.c [1.2], gdevmswn.h [1.2], gdevmsxf.c [1.2],
    gdevn533.c [1.2], gdevo182.c [1.2], gdevokii.c [1.2], gdevos2p.c [1.3],
    gdevp2up.c [1.2], gdevpbm.c [1.2], gdevpccm.c [1.2], gdevpccm.h [1.3],
    gdevpcfb.c [1.2], gdevpcfb.h [1.2], gdevpcl.c [1.4]: 2000/09/19 19:00:14
    lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevpcl.h [1.4], gdevpcx.c [1.2], gdevpe.c [1.2]: 2000/09/19
    19:00:17 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevphex.c [1.2], gdevpjet.c [1.2], gdevpm.c [1.2],
    gdevpm.h [1.2], gdevpng.c [1.3], gdevps.c [1.12], gdevpsdf.h [1.8],
    gdevpsdi.c [1.12], gdevpsdp.c [1.8], gdevpsds.c [1.4], gdevpsds.h [1.4],
    gdevpsdu.c [1.7], gdevpsim.c [1.4], gdevpsu.c [1.2], gdevpsu.h [1.2],
    gdevpx.c [1.4], gdevpxat.h [1.3], gdevpxen.h [1.3], gdevpxop.h [1.2],
    gdevpxut.c [1.2], gdevpxut.h [1.2], gdevs3ga.c [1.2], gdevsco.c [1.3],
    gdevsj48.c [1.2], gdevsnfb.c [1.2], gdevsppr.c [1.2], gdevstc.c [1.2],
    gdevstc.h [1.2], gdevstc1.c [1.2], gdevstc2.c [1.2], gdevstc3.c [1.2],
    gdevstc4.c [1.2], gdevsun.c [1.2]: 2000/09/19 19:00:20 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevsunr.c [1.2], gdevsvga.c [1.2], gdevsvga.h [1.2],
    gdevtfax.c [1.4], gdevtfax.h [1.4], gdevtfnx.c [1.3], gdevtifs.c [1.3],
    gdevtifs.h [1.3], gdevtknk.c [1.2], gdevupd.c [1.3], gdevvglb.c [1.3],
    gdevwddb.c [1.2], gdevwdib.c [1.2], gdevwpr2.c [1.5], gdevwprn.c [1.2],
    gdevx.c [1.7], gdevx.h [1.4], gdevxalt.c [1.2], gdevxcmp.c [1.2],
    gdevxcmp.h [1.2], gdevxini.c [1.9], gdevxres.c [1.3], gdevxxf.c [1.5]:
    2000/09/19 19:00:23 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (png_.h [1.2]: 2000/09/19 19:00:47 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (x_.h [1.2]: 2000/09/19 19:00:52 lpd)

    PDF writer

    Fixes problems:
    	- The SrcPg entry in ANN pdfmarks was (effectively) ignored. (bug
    introduced between 5.50 and 6.01.) (gdevpdfm.c [1.5]: 2000/08/31 18:49:59
    lpd)
    	- When CompatibilityLevel < 1.4, transparency was ignored rather
    than being rendered explicitly. (gdevpdfg.c [1.9]: 2000/09/11 21:13:49 lpd)

    Works around the bug in Acrobat Reader (all versions) that apparently treats
    stroked fonts as filled fonts, ignoring the PaintType. (gdevpdft.c [1.15]:
    2000/08/31 03:23:26 lpd)

    Adds the ability to write some PDF 1.4 constructs: graphics state parameters
    AIS, BM, ca/CA, and TK, and images with soft masks (except for Matte).
    (gdevpdfg.c [1.8], gdevpdfg.h [1.8], gdevpdfi.c [1.18]: 2000/09/11 02:14:09
    lpd)

    Adds the ability to write PDF 1.4 soft-masked images. (gdevpdfi.c [1.19],
    gdevpdfo.c [1.4], gdevpdfo.h [1.4], gdevpdfv.c [1.2]: 2000/09/11 04:10:42
    lpd)

    Replaces "Distiller" with our program name in the Info Producer string.
    (gdevpdf.c [1.20], gdevpdfm.c [1.6], gdevpdfu.c [1.11], gdevpdfx.h [1.21]:
    2000/09/12 02:03:35 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevpdf.c [1.21], gdevpdfb.c [1.2], gdevpdfc.c [1.12],
    gdevpdfd.c [1.10], gdevpdfe.c [1.4], gdevpdff.c [1.8], gdevpdff.h [1.4],
    gdevpdfg.c [1.10], gdevpdfg.h [1.9], gdevpdfi.c [1.20], gdevpdfj.c [1.5],
    gdevpdfm.c [1.7], gdevpdfo.c [1.5], gdevpdfo.h [1.5], gdevpdfp.c [1.10],
    gdevpdfr.c [1.4], gdevpdft.c [1.16], gdevpdfu.c [1.12], gdevpdfv.c [1.3],
    gdevpdfw.c [1.5], gdevpdfx.h [1.22]: 2000/09/19 19:00:17 lpd)

    Interpreter (PDF)

    Fixes problems:
    	- PDF files with embedded CID fonts with FontName != BaseFont
    (prohibited by the PDF specification, but produced by some Adobe software)
    caused an error. (lib/pdf_font.ps [1.11], lib/pdf_ops.ps [1.8]: 2000/08/08
    22:29:12 lpd)
    	- Setting the color (fill or stroke) sometimes overwrote the color
    associated with an outer gsave level. (lib/pdf_ops.ps [1.9]: 2000/08/24
    01:55:37 lpd)
    	- The PDF text rendering modes that included clipping (modes 4-7)
    didn't work. The fix is a bit of a hack, but it's much closer to being
    right. (lib/pdf_ops.ps [1.12]: 2000/08/31 02:05:55 lpd)
    	- The new code for detecting whether a page used any transparency
    features could cause an error. (lib/pdf_main.ps [1.14]: 2000/09/10 18:48:26
    lpd)
    	- Filters with indirect object parameters caused an error. (Fix from
    Artifex.) (lib/pdf_base.ps [1.9]: 2000/09/14 00:38:05 lpd)
    	- The page dictionary was left on the operand stack while the page
    was being rendered, causing the sc[n]/SC[N] operators to give an error if
    the color consisted of only a single value. (bug introduced after 6.23)
    (lib/pdf_main.ps [1.18]: 2000/09/18 06:38:38 lpd)

    Puts the logic for detecting garbage after %%EOF (and some similar invalid
    constructs) back into the main code, making it produce a message on stderr.
    (lib/pdf_main.ps [1.11]: 2000/08/23 02:22:39 lpd)

    Implements the op, OP, and OPM (overprint control) elements of ExtGStates.
    (lib/pdf_draw.ps [1.17], lib/pdf_ops.ps [1.10]: 2000/08/24 02:26:52 lpd)

    Implements the new PDF 1.4 scalar graphics state parameters (ca, CA, SMask,
    AIS, BM, TK). The implementation of SMask is a stub.
    (lib/pdf_draw.ps [1.18], lib/pdf_ops.ps [1.11]: 2000/08/24 03:04:29 lpd)

    If a PDF file is invalid but repairable, prints out the Producer as part of
    the warning message. (lib/pdf_main.ps [1.12]: 2000/08/24 04:18:40 lpd)

    Adds most of the code needed to support PDF 1.4 transparency groups and soft
    masks in the graphics state. (lib/pdf_draw.ps [1.19], lib/pdf_ops.ps [1.13]:
    2000/09/08 04:54:10 lpd)

    Implements another chunk of the PDF 1.4 transparency features, fixing some
    bugs in the previous code. (lib/pdf_draw.ps [1.20], lib/pdf_main.ps [1.13],
    lib/pdf_ops.ps [1.14]: 2000/09/10 05:26:27 lpd)

    Moves the Matte entry of soft mask images from the main structure to the
    mask structures, and changes Matted to has_Matte. (lib/pdf_draw.ps [1.21]:
    2000/09/11 04:08:13 lpd)

    Renders pages that use any transparency features as transparency groups.
    (lib/pdf_main.ps [1.15]: 2000/09/12 20:36:23 lpd)

    *** empty log message *** (lib/pdf_main.ps [1.16]: 2000/09/15 03:51:54
    alexcher)

    Undoes uncommented and in some cases inappropriate changes.
    (lib/pdf_main.ps [1.17]: 2000/09/18 06:28:58 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, and changes a few other internal
    references. (lib/pdf_base.ps [1.10], lib/pdf_draw.ps [1.22],
    lib/pdf_font.ps [1.12], lib/pdf_main.ps [1.19], lib/pdf_ops.ps [1.15],
    lib/pdf_sec.ps [1.2]: 2000/09/19 18:29:11 lpd)

    Interpreter

    Fixes problems:
    	- The FlateEncode and zlibEncode filters didn't implement the
    "Effort" parameter. (fix from Alex Cherepanov) (zfzlib.c [1.2]: 2000/08/09
    16:55:25 lpd)
    	- The *ACSImageDict parameter dictionaries weren't being set for the
    /default configuration; the *ACSImageDict parameters were never recognized,
    because their names were spelled incorrectly as *ACSDict. (Two separate
    bugs.) (lib/gs_pdfwr.ps [1.5]: 2000/08/18 03:20:12 lpd)
    	- When given an array of the wrong size, a number of operators
    produced a limitcheck error rather than a rangecheck. (idparam.c [1.2],
    idparam.h [1.2], zcie.c [1.3], zfont1.c [1.7], zfunc.c [1.5],
    zfunc0.c [1.2], zimage2.c [1.2], zimage3.c [1.2], zpcolor.c [1.2],
    zshade.c [1.3]: 2000/08/23 01:45:08 lpd)
    	- The stub implementations of .{set,current}{opacity,shape}mask
    didn't {pop the argument}{push null}. (ztrans.c [1.2]: 2000/08/24 03:03:18
    lpd)
    	- The BeOS C compiler objected to some int/bool mismatches.
    (icontext.c [1.5]: 2000/08/31 03:51:29 lpd)
    	- If changing LanguageLevels caused a dictionary to grow, memory
    could be corrupted. (zmisc2.c [1.2]: 2000/08/31 14:43:58 lpd)
    	- Because "-" as an OutputFile now references the %stdout IODevice,
    it no longer worked in configurations without a PostScript interpreter.
    Fixing this required factoring out the stdin/out/err IODevices and providing
    an implementation that didn't reference the PostScript interpreter.
    (ziodev.c [1.2], ziodevs.c [1.1]: 2000/09/07 06:14:45 lpd)
    	- .LocalDefaults was stored in a local array in the (global)
    ColorSpace category dictionary, causing memory anomalies with multiple
    contexts. (lib/gs_ll3.ps [1.6], lib/gs_res.ps [1.13]: 2000/09/20 07:15:11
    lpd)
    	- A missing cast caused the picky OpenVMS compiler to complain.
    (zdevcal.c [1.3]: 2000/09/22 04:18:17 lpd)
    	- Attempting to show an undefined character code in a TrueType font
    with no .notdef entry caused an error. (lib/gs_ttf.ps [1.8]: 2000/09/23
    18:47:06 lpd)

    Initializes files for the 6.24 fileset. (lib/gs_init.ps [1.21]: 2000/08/09
    16:54:02 lpd)

    Adds the PDF "overprint mode" to the graphics state. THE ACTUAL
    FUNCTIONALITY IS NOT IMPLEMENTED YET. (zcssepr.c [1.4]: 2000/08/23 17:54:16
    lpd)

    Starts to implement the PDF 1.4 transparency features. All API and operator
    additions are now implemented (at least as stubs) and documented, as is
    bookkeeping for the new scalar graphics state members (but not for the soft
    masks or the transparency group stack). (ztrans.c [1.1]: 2000/08/23 21:46:31
    lpd)

    Partly implements opacity and shape mask bookkeeping. gsave/grestore/etc.
    and banding don't do the right thing yet. (igstate.h [1.2], ztrans.c [1.3]:
    2000/08/25 01:46:48 lpd)

    Implements some minor improvements to the freelist algorithms that can
    produce nearly a factor of 2 speedup in some allocation-intensive
    situations. (isave.c [1.2]: 2000/08/26 03:21:34 lpd)

    Brings the (still mostly stubbed) transparency code to a more
    self-consistent state. (ztrans.c [1.4]: 2000/08/30 01:34:40 lpd)

    Finishes the code for parsing ImageType 103 (soft-mask) images.
    (ztrans.c [1.5]: 2000/08/30 04:30:06 lpd)

    Completes the parsing of .{begin,end}transparency{group,mask}, except for
    the TransferFunction for masks. The specification is still subject to
    change. (ztrans.c [1.6]: 2000/08/30 15:03:36 lpd)

    *Really* finishes the transparency rendering stack operators (the previous
    version didn't even compile), except for TransferFunction. (ztrans.c [1.7]:
    2000/08/30 21:11:55 lpd)

    Implements another chunk of the PDF 1.4 transparency features, fixing some
    bugs in the previous code. (lib/gs_ll3.ps [1.4], ztrans.c [1.8]: 2000/09/10
    05:26:27 lpd)

    Checks that the TransferFunction of a soft mask is 1-in, 1-out; sets Matted
    correctly in the soft mask parameters passed to the graphics library.
    (ztrans.c [1.9]: 2000/09/11 02:10:28 lpd)

    Moves the Matte entry of soft mask images from the main structure to the
    mask structures, and changes Matted to has_Matte. (ztrans.c [1.10]:
    2000/09/11 04:08:13 lpd)

    Upgrades the proposed driver interface transparency extension from comments
    to macros, changing the name 'discard_transparency_level' to
    'discard_transparency_layer'. (ztrans.c [1.11]: 2000/09/11 20:13:31 lpd)

    *** empty log message *** (lib/gs_init.ps [1.22], zmatrix.c [1.2]:
    2000/09/14 19:46:05 alexcher)

    Undoes uncommented and in some cases inappropriate changes.
    (lib/gs_init.ps [1.23], zmatrix.c [1.3]: 2000/09/18 06:28:58 lpd)

    Updates the license notice to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript. (examples/waterfal.ps [1.2]: 2000/09/19
    18:03:40 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, and changes a few other internal
    references. (lib/gs_agl.ps [1.2], lib/gs_btokn.ps [1.3],
    lib/gs_ccfnt.ps [1.4], lib/gs_ce_e.ps [1.2], lib/gs_cff.ps [1.7],
    lib/gs_cidfn.ps [1.17], lib/gs_cmap.ps [1.6], lib/gs_cmdl.ps [1.2],
    lib/gs_css_e.ps [1.2], lib/gs_dbt_e.ps [1.2], lib/gs_diskf.ps [1.2],
    lib/gs_dpnxt.ps [1.2], lib/gs_dps.ps [1.4], lib/gs_dps1.ps [1.2],
    lib/gs_dps2.ps [1.2], lib/gs_epsf.ps [1.2], lib/gs_fform.ps [1.2],
    lib/gs_fonts.ps [1.9], lib/gs_frsd.ps [1.4], lib/gs_il1_e.ps [1.2],
    lib/gs_il2_e.ps [1.2], lib/gs_init.ps [1.24], lib/gs_kanji.ps [1.2],
    lib/gs_ksb_e.ps [1.2], lib/gs_l2img.ps [1.2], lib/gs_lev2.ps [1.6],
    lib/gs_lgo_e.ps [1.3], lib/gs_lgx_e.ps [1.2], lib/gs_ll3.ps [1.5],
    lib/gs_mex_e.ps [1.2], lib/gs_mgl_e.ps [1.3], lib/gs_mro_e.ps [1.2],
    lib/gs_pdf_e.ps [1.2], lib/gs_pdfwr.ps [1.6], lib/gs_pfile.ps [1.2],
    lib/gs_rdlin.ps [1.2], lib/gs_res.ps [1.12], lib/gs_setpd.ps [1.5],
    lib/gs_statd.ps [1.4], lib/gs_std_e.ps [1.2], lib/gs_sym_e.ps [1.2],
    lib/gs_trap.ps [1.3], lib/gs_ttf.ps [1.7], lib/gs_typ32.ps [1.2],
    lib/gs_typ42.ps [1.2], lib/gs_type1.ps [1.4], lib/gs_wan_e.ps [1.2],
    lib/gs_wl1_e.ps [1.2], lib/gs_wl2_e.ps [1.2], lib/gs_wl5_e.ps [1.2]:
    2000/09/19 18:29:11 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (bfont.h [1.3], btoken.h [1.4], ccfont.h [1.2],
    dpmainc.c [1.2], dstack.h [1.2], dwdll.cpp [1.2], dwdll.h [1.2],
    dwimg.cpp [1.2], dwimg.h [1.2], dwinst.cpp [1.2], dwinst.h [1.2],
    dwmain.cpp [1.2], dwmain.h [1.2], dwmainc.cpp [1.3], dwnodll.cpp [1.2],
    dwsetup.cpp [1.3], dwsetup.h [1.2], dwtext.cpp [1.2], dwtext.h [1.2],
    dwuninst.cpp [1.2], dwuninst.h [1.2], errors.h [1.2], estack.h [1.2],
    files.h [1.2]: 2000/09/19 19:00:09 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (ghost.h [1.2], gs.c [1.2]: 2000/09/19 19:00:23 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (ialloc.c [1.2], ialloc.h [1.2], iastate.h [1.2],
    iastruct.h [1.2], ibnum.c [1.2], ibnum.h [1.2], iccfont.c [1.2],
    iccinit0.c [1.2], icfontab.c [1.2], ichar.h [1.3], ichar1.h [1.3],
    icharout.h [1.2], icid.h [1.2], icie.h [1.2], icolor.h [1.2], iconf.c [1.2],
    icontext.c [1.6], icontext.h [1.2], icremap.h [1.2], icsmap.h [1.2],
    icstate.h [1.4], iddict.h [1.2], iddstack.h [1.2], idebug.c [1.2],
    idebug.h [1.2], idict.c [1.2], idict.h [1.2], idictdef.h [1.2],
    idosave.h [1.2], idparam.c [1.3], idparam.h [1.3], idsdata.h [1.2],
    idstack.c [1.2], idstack.h [1.2], iesdata.h [1.2], iestack.h [1.2],
    ifcid.h [1.2], ifilter.h [1.3], ifilter2.h [1.2], ifont.h [1.4],
    ifont1.h [1.3], ifont2.h [1.2], ifont42.h [1.3], ifrpred.h [1.2],
    ifunc.h [1.3], ifwpred.h [1.2], igc.c [1.2]: 2000/09/19 19:00:41 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (igc.h [1.2], igcref.c [1.2], igcstr.c [1.3], igcstr.h [1.2],
    igstate.h [1.3], iht.h [1.2], iimage.h [1.2], iimage2.h [1.2],
    iinit.c [1.2], iinit.h [1.2], ilevel.h [1.2], ilocate.c [1.3],
    imain.c [1.2], imain.h [1.2], imainarg.c [1.4], imainarg.h [1.2],
    imemory.h [1.2], iminst.h [1.2], iname.c [1.3], iname.h [1.2],
    inamedef.h [1.2], inameidx.h [1.2], inames.h [1.2], inamestr.h [1.2],
    inobtokn.c [1.2], inouparm.c [1.2], interp.c [1.6], interp.h [1.2],
    iosdata.h [1.2], iostack.h [1.2], ipacked.h [1.2], iparam.c [1.5],
    iparam.h [1.2], iparray.h [1.2], ipcolor.h [1.2], ireclaim.c [1.2],
    iref.h [1.3], isave.c [1.3], isave.h [1.2], iscan.c [1.5], iscan.h [1.4],
    iscanbin.c [1.5], iscanbin.h [1.2], iscannum.c [1.2], iscannum.h [1.2],
    isdata.h [1.2], isstate.h [1.2], istack.c [1.2], istack.h [1.2],
    istkparm.h [1.2], istream.h [1.2], istruct.h [1.2], itoken.h [1.2],
    iutil.c [1.2], iutil.h [1.2], iutil2.c [1.2], iutil2.h [1.2],
    ivmem2.h [1.2]: 2000/09/19 19:00:44 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (ivmspace.h [1.2], main.h [1.2], oparc.h [1.2],
    opcheck.h [1.2], opdef.h [1.2], oper.h [1.2], opextern.h [1.2],
    ostack.h [1.2], sbhc.c [1.2], sbhc.h [1.2], sbwbs.c [1.2], sbwbs.h [1.2],
    sfilter1.c [1.5]: 2000/09/19 19:00:47 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (shcgen.c [1.2], shcgen.h [1.2], smtf.c [1.2], smtf.h [1.2],
    store.h [1.2], zarith.c [1.4], zarray.c [1.2], zbfont.c [1.6],
    zbseq.c [1.4], zcfont.c [1.2], zchar.c [1.3], zchar1.c [1.5],
    zchar2.c [1.2], zchar32.c [1.2], zchar42.c [1.2], zcharout.c [1.2],
    zcharx.c [1.3], zcid.c [1.3], zcie.c [1.4], zcolor.c [1.4]: 2000/09/19
    19:00:50 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (zcolor1.c [1.3], zcolor2.c [1.3], zcontext.c [1.6],
    zcontrol.c [1.3], zcrd.c [1.2], zcsdevn.c [1.3], zcsindex.c [1.3],
    zcspixel.c [1.2], zcssepr.c [1.5], zdevcal.c [1.2], zdevice.c [1.3],
    zdevice2.c [1.3], zdict.c [1.3], zdouble.c [1.2], zdpnext.c [1.2],
    zdps.c [1.4], zdps1.c [1.2], zfbcp.c [1.3], zfcid.c [1.10], zfcid0.c [1.4],
    zfcid1.c [1.2], zfcmap.c [1.8], zfdctd.c [1.3], zfdcte.c [1.3],
    zfdecode.c [1.3], zfile.c [1.5], zfileio.c [1.9], zfilter.c [1.4],
    zfilter2.c [1.3], zfilterx.c [1.2], zfmd5.c [1.2], zfont.c [1.2],
    zfont0.c [1.3], zfont1.c [1.8], zfont2.c [1.3], zfont32.c [1.2],
    zfont42.c [1.5], zfproc.c [1.4], zfrsd.c [1.4], zfunc.c [1.6],
    zfunc0.c [1.3], zfunc3.c [1.2], zfunc4.c [1.5], zfzlib.c [1.3],
    zgeneric.c [1.3], zgstate.c [1.2], zhsb.c [1.2], zht.c [1.2], zht1.c [1.2],
    zht2.c [1.2], zimage.c [1.5], zimage2.c [1.3], zimage3.c [1.3],
    ziodev.c [1.3], ziodev2.c [1.3], ziodevs.c [1.2], zmath.c [1.3],
    zmatrix.c [1.4], zmedia2.c [1.2], zmisc.c [1.2], zmisc1.c [1.3],
    zmisc2.c [1.3], zmisc3.c [1.2], zpacked.c [1.2], zpaint.c [1.2],
    zpath.c [1.2], zpath1.c [1.2], zpcolor.c [1.3], zrelbit.c [1.2],
    zrop.c [1.2], zshade.c [1.4], zstack.c [1.2], zstring.c [1.2],
    zsysvm.c [1.2], ztoken.c [1.6], ztrans.c [1.12], ztrap.c [1.2],
    ztype.c [1.3], zupath.c [1.2], zusparam.c [1.3], zvmem.c [1.2],
    zvmem2.c [1.2]: 2000/09/19 19:00:53 lpd)

    Change to avoid multiply defined rect_param when NOPRIVATE is used. This
    module uses 4 element X/Y/width/Height, not a gs_rect so xywh_param is a
    better name. (zdpnext.c [1.3]: 2000/09/21 15:12:01 rayjj)

    Changes the default Windows installation directory from c:\Aladdin to c:\gs.
    (dwsetup.cpp [1.4]: 2000/09/22 05:32:17 lpd)

    Changes the default Windows Start Menu Folder from "Aladdin" to
    "Ghostscript". (dwsetup.cpp [1.5]: 2000/09/22 05:35:02 lpd)

    Documentation changes in preparation for 6.30 release. Replaced some contact
    information, updated version numbers. (lib/gs_init.ps [1.25]: 2000/10/04
    04:33:29 raph)

    Streams

    Fixes problems:
    	- s_add_filter used min_out_size rather than min_in_size for the
    minimum buffer size, which could cause an endless loop when writing to the
    filter. (This only affected filters allocated by C code, not by the
    PostScript filter operator.) (stream.c [1.7], stream.h [1.6]: 2000/08/16
    01:26:22 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (sa85d.c [1.2], sa85d.h [1.2], sa85x.h [1.3], sbcp.c [1.3],
    sbcp.h [1.2], sbtx.h [1.2], scanchar.h [1.2], scantab.c [1.2], scf.h [1.2],
    scfd.c [1.2], scfe.c [1.2], scfetab.c [1.2], scfparam.c [1.2], scfx.h [1.2],
    scommon.h [1.2], sdcparam.c [1.2], sdcparam.h [1.2], sdct.h [1.2],
    sdctc.c [1.2], sdctd.c [1.2], sdcte.c [1.2], sddparam.c [1.2],
    sdeparam.c [1.2], seexec.c [1.3], sfilter.h [1.6], sfilter2.c [1.3],
    sfxboth.c [1.2], sfxfd.c [1.5]: 2000/09/19 19:00:47 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (sfxstdio.c [1.4], shc.c [1.2], shc.h [1.2], siinterp.c [1.2],
    siinterp.h [1.2], siscale.c [1.4], siscale.h [1.2], sisparam.h [1.2],
    sjpeg.h [1.2], sjpegc.c [1.2], sjpegd.c [1.2], sjpege.c [1.2],
    slzwc.c [1.2], slzwce.c [1.2], slzwd.c [1.2], slzwx.h [1.2], smd5.c [1.3],
    smd5.h [1.2], spdiff.c [1.3], spdiffx.h [1.2], spngp.c [1.2],
    spngpx.h [1.2], spprint.c [1.2], spprint.h [1.2], spsdf.c [1.4],
    spsdf.h [1.2], srdline.h [1.2], srld.c [1.2], srle.c [1.2], srlx.h [1.2],
    sstring.c [1.2], sstring.h [1.2], stat_.h [1.5], std.h [1.3],
    stdio_.h [1.2], stdpre.h [1.2], stream.c [1.8], stream.h [1.7],
    strimpl.h [1.2], string_.h [1.2], szlibc.c [1.2], szlibd.c [1.2],
    szlibe.c [1.2], szlibx.h [1.2], szlibxx.h [1.2]: 2000/09/19 19:00:50 lpd)

    Library

    Fixes problems:
    	- Parameter lists didn't have proper GC descriptors; garbage
    collection could mangle keys and collection values in non-transient
    parameter lists (such as distiller parameters). (gscparam.c [1.5]:
    2000/08/19 03:01:30 lpd)
    	- gdev_vector_dopath could return 1, which value was then propagated
    to callers that interpreted it differently. (gdevvec.c [1.5],
    gdevvec.h [1.3]: 2000/08/20 00:21:42 lpd)
    	- An AIX compiler could get confused if the last elements of a
    structure were individual bytes. (gzpath.h [1.2]: 2000/08/24 19:43:48 lpd)
    	- If the OutputFile of a high-level device was ever set, any
    subsequent execution of setpagedevice would cause a rangecheck in
    .installpagedevice. (gdevvec.c [1.6]: 2000/08/31 02:04:50 lpd)
    	- Type 2 CharStrings didn't insert an explicit closepath at the end
    of each subpath. (This matters for charpath followed by stroke.)
    (gstype2.c [1.5]: 2000/08/31 02:16:45 lpd)
    	- Type 2 fonts should insert an explicit closepath only if the
    font's PaintType != 1. (gstype2.c [1.6]: 2000/08/31 03:21:45 lpd)
    	- The BeOS C compiler objected to some int/bool mismatches.
    (gp.h [1.4], gxfill.c [1.4], gxtext.h [1.2]: 2000/08/31 03:51:29 lpd)
    	- Because "-" as an OutputFile now references the %stdout IODevice,
    it no longer worked in configurations without a PostScript interpreter.
    Fixing this required factoring out the stdin/out/err IODevices and providing
    an implementation that didn't reference the PostScript interpreter.
    (gsiodevs.c [1.1], gslib.c [1.2]: 2000/09/07 06:14:45 lpd)
    	- Fixes a type error caused by a change in the TransferFunction
    member of gs_transparency_mask_params_t. (gstrans.c [1.7]: 2000/09/10
    18:20:09 lpd)
    	- Several places in the code for ImageType 3x (soft-masked) images
    didn't correctly handle the case where only one of the two masks was
    supplied (which is always the case for PDF). (gximag3x.c [1.4]: 2000/09/11
    02:12:19 lpd)
    	- The -Zv tracing messages for gs_begin_transparency_{group,mask}
    were incorrect. (gstrans.c [1.10]: 2000/09/12 20:35:05 lpd)
    	- Printing the program name and version didn't use fprintf, so it
    didn't work properly with the stdout redirection on Windows. (fix from
    Artifex) (gsmisc.c [1.7]: 2000/09/18 06:22:35 lpd)
    	- Undefined characters in CID-keyed (FMapType 9) composite fonts
    caused an infinite loop, because the parsing index was never advanced past
    the character. (gsfcmap.c [1.7]: 2000/09/21 02:44:44 lpd)
    	- CID-keyed (FMapType 9) composite fonts didn't return the correct
    parsed character code, possibly causing widthshow or cshow to produce
    incorrect output. (gsfcmap.c [1.8], gsfcmap.h [1.4]: 2000/09/21 03:02:03
    lpd)
    	- Works around ANSI C's unreasonable new aliasing restrictions.
    (gsnogc.c [1.5]: 2000/09/22 04:17:52 lpd)
    	- The 'head' table in embedded TrueType fonts had a length of 56; it
    should have a length of 54 and be followed by 2 padding bytes.
    (gdevpsft.c [1.4]: 2000/09/26 06:42:05 lpd)

    Initializes files for the 6.24 fileset. (gscdef.c [1.7]: 2000/08/09 16:54:02
    lpd)

    Adds the PDF "overprint mode" to the graphics state. THE ACTUAL
    FUNCTIONALITY IS NOT IMPLEMENTED YET. (gscsepr.c [1.4], gscsepr.h [1.3],
    gsstate.c [1.2], gxclpath.c [1.3], gxclpath.h [1.2], gxclrast.c [1.4],
    gxistate.h [1.2]: 2000/08/23 17:54:14 lpd)

    Starts to implement the PDF 1.4 transparency features. All API and operator
    additions are now implemented (at least as stubs) and documented, as is
    bookkeeping for the new scalar graphics state members (but not for the soft
    masks or the transparency group stack). (gsistate.c [1.2], gsstate.c [1.3],
    gstparam.h [1.1], gstrans.c [1.1], gstrans.h [1.1], gxclpath.c [1.4],
    gxclpath.h [1.3], gxclrast.c [1.5], gxistate.h [1.3], gzstate.h [1.2]:
    2000/08/23 21:46:31 lpd)

    Adds a new equality-testing virtual procedure for color spaces.
    (gscdevn.c [1.4], gscolor2.c [1.5], gscpixel.c [1.2], gscscie.c [1.2],
    gscsepr.c [1.5], gscspace.c [1.3], gscspace.h [1.3], gspcolor.c [1.3],
    gxcspace.h [1.3]: 2000/08/24 05:42:30 lpd)

    Changes the band list representation of mask images to allow
    BitsPerComponent > 1 (for soft masks). (gximage1.c [1.2]: 2000/08/24
    17:58:18 lpd)

    Adds Matte and has_Matte members to ImageType 1 images. These are only used
    with the new transparency features. (gsiparam.h [1.2], gximage1.c [1.3]:
    2000/08/24 19:20:12 lpd)

    Partly implements opacity and shape mask bookkeeping. gsave/grestore/etc.
    and banding don't do the right thing yet. (gstparam.h [1.2],
    gstrans.c [1.2], gstrans.h [1.2], gxcldev.h [1.2], gxclpath.c [1.5],
    gxclpath.h [1.4]: 2000/08/25 01:46:48 lpd)

    Changes remove_range_from_freelist to only scan relevant freelists, rather
    than all of them. On some files, the speedup is dramatic. (gsalloc.c [1.6]:
    2000/08/26 01:18:33 lpd)

    Completes an edit that accidentally left the repository in an inconsistent
    state. (gxclpath.c [1.6], gxclrast.c [1.6]: 2000/08/26 03:19:56 lpd)

    Implements some minor improvements to the freelist algorithms that can
    produce nearly a factor of 2 speedup in some allocation-intensive
    situations. (gsalloc.c [1.7], gxalloc.h [1.4]: 2000/08/26 03:21:34 lpd)

    Brings the (still mostly stubbed) transparency code to a more
    self-consistent state. (gsipar3x.h [1.1], gsiparam.h [1.3],
    gsstruct.h [1.4], gstparam.h [1.3], gstrans.c [1.3], gstrans.h [1.3],
    gxclpath.c [1.7], gxclpath.h [1.5], gxclrast.c [1.7], gximag3x.c [1.1],
    gximag3x.h [1.1], gximage1.c [1.4], gxistate.h [1.4]: 2000/08/30 01:34:40
    lpd)

    Finishes the code for parsing ImageType 103 (soft-mask) images.
    (gximag3x.c [1.2]: 2000/08/30 04:29:56 lpd)

    Completes the parsing of .{begin,end}transparency{group,mask}, except for
    the TransferFunction for masks. The specification is still subject to
    change. (gstparam.h [1.4], gstrans.c [1.4], gstrans.h [1.4]: 2000/08/30
    15:03:36 lpd)

    Adds documentation on proposed driver interface additions for managing the
    transparency rendering stack. (gstrans.c [1.5]: 2000/08/31 20:22:47 lpd)

    Adds color space type names for tracing/debugging. (gscspace.h [1.4]:
    2000/09/10 05:21:44 lpd)

    Changes the -Zv switch to trace alpha/transparency-related features.
    (gdevabuf.c [1.2]: 2000/09/10 05:23:10 lpd)

    Implements another chunk of the PDF 1.4 transparency features, fixing some
    bugs in the previous code. (gstparam.h [1.5], gstrans.c [1.6],
    gximag3x.c [1.3]: 2000/09/10 05:26:27 lpd)

    Moves the Matte entry of soft mask images from the main structure to the
    mask structures, and changes Matted to has_Matte. (gsipar3x.h [1.2],
    gximag3x.c [1.5], gximag3x.h [1.2]: 2000/09/11 04:08:13 lpd)

    Adds a default implementation of soft-masked images that simply ignores the
    mask. (gximag3x.c [1.6]: 2000/09/11 04:38:01 lpd)

    Upgrades the proposed driver interface transparency extension from comments
    to macros, changing the name 'discard_transparency_level' to
    'discard_transparency_layer'. (gstrans.c [1.8], gstrans.h [1.5]: 2000/09/11
    20:13:31 lpd)

    Finishes the (dummy) implementation of the transparency layer stack in the
    graphics library. (gsistate.c [1.3], gsstate.c [1.4], gstparam.h [1.6],
    gstrans.c [1.9], gxistate.h [1.5]: 2000/09/11 22:20:05 lpd)

    Makes the default string matching parameters public. (gsutil.c [1.3],
    gsutil.h [1.2]: 2000/09/12 02:02:52 lpd)

    *** empty log message *** (gsmisc.c [1.6]: 2000/09/15 03:01:51 alexcher)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (close_.h [1.2], ctype_.h [1.2], dirent_.h [1.2],
    dos_.h [1.2], errno_.h [1.2], fcntl_.h [1.3], gconf.c [1.2], gconf.h [1.2],
    gdebug.h [1.2], gdevabuf.c [1.3], gdevalph.c [1.2], gdevbbox.c [1.3],
    gdevbbox.h [1.2]: 2000/09/19 19:00:09 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevcmap.c [1.2], gdevcmap.h [1.2], gdevdbit.c [1.2],
    gdevddrw.c [1.2], gdevdflt.c [1.3], gdevdgbr.c [1.2], gdevdrop.c [1.3],
    gdevemap.c [1.2], gdevhit.c [1.2], gdevht.c [1.3], gdevht.h [1.2],
    gdevm1.c [1.2], gdevm16.c [1.2], gdevm2.c [1.2], gdevm24.c [1.2],
    gdevm32.c [1.2], gdevm4.c [1.2], gdevm8.c [1.2], gdevmem.c [1.2],
    gdevmem.h [1.3], gdevmpla.c [1.2], gdevmpla.h [1.2], gdevmr1.c [1.2],
    gdevmr2n.c [1.2], gdevmr8n.c [1.2], gdevmrop.h [1.3], gdevmrun.c [1.2],
    gdevmrun.h [1.2], gdevnfwd.c [1.3]: 2000/09/19 19:00:12 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevpipe.c [1.3], gdevplnx.c [1.2], gdevplnx.h [1.2],
    gdevppla.c [1.2], gdevppla.h [1.2], gdevprn.c [1.5], gdevprn.h [1.6],
    gdevprna.c [1.2], gdevprna.h [1.2], gdevpsf.h [1.7], gdevpsf1.c [1.5],
    gdevpsf2.c [1.7], gdevpsfm.c [1.3], gdevpsft.c [1.3], gdevpsfu.c [1.4],
    gdevpsfx.c [1.5], gdevrops.c [1.3]: 2000/09/19 19:00:20 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gdevtrac.c [1.2], gdevvec.c [1.7], gdevvec.h [1.4],
    gp.h [1.5], gp_dosfe.c [1.2], gp_dosfs.c [1.2], gp_getnv.c [1.2],
    gp_msdos.c [1.2], gp_nsync.c [1.2], gp_psync.c [1.2], gp_strdl.c [1.2],
    gp_unifn.c [1.2], gp_unifs.c [1.3], gpcheck.h [1.2], gpgetenv.h [1.2],
    gpmisc.c [1.7], gpmisc.h [1.2], gpsync.h [1.2], gsalloc.c [1.8],
    gsalloc.h [1.2], gsalpha.c [1.2], gsalpha.h [1.2], gsalphac.c [1.2],
    gsalphac.h [1.2], gsargs.c [1.2], gsargs.h [1.3], gsbitmap.h [1.2],
    gsbitops.c [1.2], gsbitops.h [1.2], gsbittab.c [1.2], gsbittab.h [1.2]:
    2000/09/19 19:00:23 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gsccode.h [1.4], gsccolor.h [1.2], gscdef.c [1.8],
    gscdefs.h [1.2], gscdevn.c [1.5], gscdevn.h [1.3], gschar.c [1.3],
    gschar.h [1.3], gschar0.c [1.2], gscie.c [1.3], gscie.h [1.2],
    gsciemap.c [1.3], gscindex.h [1.2], gsclipsr.c [1.2], gsclipsr.h [1.2],
    gscolor.c [1.4], gscolor.h [1.3], gscolor1.c [1.3], gscolor1.h [1.2],
    gscolor2.c [1.6], gscolor2.h [1.3], gscolor3.c [1.4], gscolor3.h [1.2],
    gscompt.h [1.2], gscoord.c [1.5], gscoord.h [1.2], gscparam.c [1.6],
    gscpixel.c [1.3], gscpixel.h [1.2], gscpm.h [1.2], gscrd.c [1.2],
    gscrd.h [1.2], gscrdp.c [1.2], gscrdp.h [1.2], gscrypt1.c [1.2],
    gscrypt1.h [1.2], gscscie.c [1.3], gscsel.h [1.2], gscsepnm.h [1.2],
    gscsepr.c [1.6], gscsepr.h [1.4], gscspace.c [1.4], gscspace.h [1.5],
    gscssub.c [1.2], gscssub.h [1.2], gsdcolor.h [1.3], gsdevice.c [1.7],
    gsdevice.h [1.3], gsdevmem.c [1.2], gsdparam.c [1.4], gsdpnext.h [1.2],
    gsdps.c [1.2], gsdps.h [1.2], gsdps1.c [1.2], gsdsrc.c [1.2],
    gsdsrc.h [1.3], gserror.h [1.2], gserrors.h [1.2], gsexit.h [1.2],
    gsfcid.c [1.4], gsfcmap.c [1.6], gsfcmap.h [1.3], gsfemu.c [1.2],
    gsflip.c [1.2], gsflip.h [1.2], gsfname.c [1.2], gsfname.h [1.2],
    gsfont.c [1.2], gsfont.h [1.2], gsfont0.c [1.2], gsfunc.c [1.4],
    gsfunc.h [1.4], gsfunc0.c [1.3], gsfunc0.h [1.2], gsfunc3.c [1.4],
    gsfunc3.h [1.2], gsfunc4.c [1.3], gsfunc4.h [1.2], gsfuncv.c [1.2],
    gsfuncv.h [1.2]: 2000/09/19 19:00:26 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gsgc.h [1.2], gshsb.c [1.2], gshsb.h [1.2], gsht.c [1.2],
    gsht.h [1.2], gsht1.c [1.2], gsht1.h [1.2], gshtscr.c [1.3], gshtx.c [1.2],
    gshtx.h [1.2], gsimage.c [1.3], gsimage.h [1.2], gsimpath.c [1.2],
    gsinit.c [1.2], gsio.h [1.4], gsiodev.c [1.3], gsiodevs.c [1.2],
    gsipar3x.h [1.3], gsiparam.h [1.4], gsiparm2.h [1.2], gsiparm3.h [1.4],
    gsiparm4.h [1.2], gsistate.c [1.4], gsjconf.h [1.2], gslib.c [1.3],
    gslib.h [1.2], gsline.c [1.2], gsline.h [1.2], gslparam.h [1.2],
    gsmalloc.c [1.3], gsmalloc.h [1.2], gsmatrix.c [1.2], gsmatrix.h [1.2],
    gsmdebug.h [1.2], gsmemlok.c [1.3], gsmemlok.h [1.2], gsmemory.c [1.2],
    gsmemory.h [1.2], gsmemraw.h [1.2], gsmemret.c [1.2], gsmemret.h [1.2],
    gsmisc.c [1.8], gsnogc.c [1.4], gsnogc.h [1.2], gsnorop.c [1.2],
    gsnotify.c [1.2], gsnotify.h [1.2], gspaint.c [1.2], gspaint.h [1.2],
    gsparam.c [1.4], gsparam.h [1.7], gsparam2.c [1.2], gsparams.c [1.2],
    gsparams.h [1.2], gsparamx.c [1.3], gsparamx.h [1.3], gspath.c [1.2],
    gspath.h [1.2], gspath1.c [1.2], gspath2.h [1.2], gspcolor.c [1.4],
    gspcolor.h [1.2], gspenum.h [1.2], gsptype1.c [1.2], gsptype1.h [1.2]:
    2000/09/19 19:00:29 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gsptype2.c [1.3], gsptype2.h [1.2], gsrect.h [1.2],
    gsrefct.h [1.2], gsrop.c [1.2], gsrop.h [1.2], gsropc.c [1.2],
    gsropc.h [1.2], gsropt.h [1.3], gsroptab.c [1.2], gsshade.c [1.3],
    gsshade.h [1.3], gsstate.c [1.5], gsstate.h [1.2], gsstruct.h [1.5],
    gsstype.h [1.2], gstext.c [1.3], gstext.h [1.3], gstparam.h [1.7],
    gstrans.c [1.11], gstrans.h [1.6], gstrap.c [1.3], gstrap.h [1.3],
    gstype1.c [1.5], gstype1.h [1.2], gstype2.c [1.7], gstype42.c [1.7],
    gstypes.h [1.2], gsuid.h [1.2], gsutil.c [1.4], gsutil.h [1.3],
    gsxfont.h [1.2], gx.h [1.2], gxacpath.c [1.3], gxalloc.h [1.5],
    gxalpha.h [1.2], gxarith.h [1.2], gxband.h [1.2], gxbcache.c [1.2],
    gxbcache.h [1.2], gxbitfmt.h [1.2], gxbitmap.h [1.2], gxbitops.h [1.2],
    gxccache.c [1.2], gxccman.c [1.2], gxcdevn.h [1.2], gxchar.c [1.2],
    gxchar.h [1.2], gxchrout.c [1.2], gxchrout.h [1.2], gxcht.c [1.2],
    gxcid.h [1.3], gxcie.h [1.2], gxcindex.h [1.2], gxclbits.c [1.2],
    gxcldev.h [1.3], gxclfile.c [1.2], gxclimag.c [1.2], gxclio.h [1.2],
    gxclip.c [1.3], gxclip.h [1.2], gxclip2.c [1.3], gxclip2.h [1.2],
    gxclipm.c [1.3], gxclipm.h [1.2], gxclipsr.h [1.2], gxclist.c [1.3],
    gxclist.h [1.2], gxcllzw.c [1.2], gxclmem.c [1.2], gxclmem.h [1.2]:
    2000/09/19 19:00:32 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gxclpage.c [1.2], gxclpage.h [1.2], gxclpath.c [1.8],
    gxclpath.h [1.6], gxclrast.c [1.8], gxclread.c [1.2], gxclrect.c [1.2],
    gxclutil.c [1.2], gxclzlib.c [1.2], gxcmap.c [1.3], gxcmap.h [1.2],
    gxcolor2.h [1.4], gxcomp.h [1.2], gxcoord.h [1.2], gxcpath.c [1.3],
    gxcpath.h [1.2], gxcspace.h [1.4], gxctable.c [1.3], gxctable.h [1.2],
    gxcvalue.h [1.2], gxdcconv.c [1.3], gxdcconv.h [1.2], gxdcolor.c [1.3],
    gxdcolor.h [1.3], gxdda.h [1.2], gxdevbuf.h [1.2], gxdevcli.h [1.3],
    gxdevice.h [1.4], gxdevmem.h [1.2], gxdevrop.h [1.2], gxdht.h [1.4],
    gxdhtres.h [1.2], gxdither.c [1.2], gxdither.h [1.2], gxfarith.h [1.3],
    gxfcache.h [1.2], gxfcid.h [1.6], gxfcmap.h [1.5], gxfill.c [1.5],
    gxfixed.h [1.2], gxfmap.h [1.3], gxfont.h [1.2], gxfont0.h [1.3],
    gxfont1.h [1.4], gxfont42.h [1.4], gxfrac.h [1.2], gxftype.h [1.2],
    gxfunc.h [1.3], gxgetbit.h [1.2], gxhint1.c [1.2], gxhint2.c [1.2],
    gxhint3.c [1.2], gxht.c [1.2], gxht.h [1.2], gxhtbit.c [1.3],
    gxhttile.h [1.2], gxhttype.h [1.2], gxi12bit.c [1.2], gxiclass.h [1.2],
    gxicolor.c [1.2], gxidata.c [1.4], gxifast.c [1.2], gximag3x.c [1.7]:
    2000/09/19 19:00:35 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gximag3x.h [1.3], gximage.c [1.2], gximage.h [1.2],
    gximage1.c [1.5], gximage2.c [1.2], gximage3.c [1.6], gximage3.h [1.4],
    gximage4.c [1.3], gximono.c [1.2], gxino12b.c [1.2], gxiodev.h [1.2],
    gxiparam.h [1.2], gxipixel.c [1.2], gxiscale.c [1.2], gxistate.h [1.6],
    gxline.h [1.2], gxlum.h [1.2], gxmatrix.h [1.4], gxmclip.c [1.2],
    gxmclip.h [1.2], gxobj.h [1.2], gxop1.h [1.2], gxp1fill.c [1.2],
    gxp1impl.h [1.2], gxpageq.c [1.2], gxpageq.h [1.2], gxpaint.c [1.2],
    gxpaint.h [1.2], gxpath.c [1.2], gxpath.h [1.2], gxpath2.c [1.2],
    gxpcache.h [1.2], gxpcmap.c [1.3], gxpcolor.h [1.2], gxpcopy.c [1.3],
    gxpdash.c [1.2], gxpflat.c [1.2], gxropc.h [1.2], gxrplane.h [1.2],
    gxsample.c [1.2], gxsample.h [1.2], gxshade.c [1.4], gxshade.h [1.3],
    gxshade1.c [1.5], gxshade4.c [1.3], gxshade4.h [1.2], gxshade6.c [1.3],
    gxstate.h [1.2], gxstdio.h [1.2], gxstroke.c [1.2], gxsync.c [1.2],
    gxsync.h [1.2], gxtext.h [1.3], gxtmap.h [1.2], gxttf.h [1.2],
    gxtype1.c [1.6], gxtype1.h [1.4], gxxfont.h [1.2], gzacpath.h [1.2],
    gzcpath.h [1.2], gzht.h [1.3], gzline.h [1.2], gzpath.h [1.3]: 2000/09/19
    19:00:38 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gzstate.h [1.3]: 2000/09/19 19:00:41 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (jerror_.h [1.2], malloc_.h [1.2], math_.h [1.2],
    memory_.h [1.2], pipe_.h [1.2]: 2000/09/19 19:00:47 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (time_.h [1.2], vmsmath.h [1.2], windows_.h [1.2]: 2000/09/19
    19:00:51 lpd)

    Bring version numbers and dates up to date. Small bug fix in toolbin/pre to
    make it able to handle months with leading zeros. (gscdef.c [1.9]:
    2000/10/04 05:18:54 raph)

    ???Other???

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gp_mswin.h [1.2]: 2000/09/19 19:00:24 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gsdll.h [1.2], gsdll32w.lnk [1.2], gsdllos2.h [1.2],
    gsdllwin.h [1.2], gsjmorec.h [1.2]: 2000/09/19 19:00:27 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (gspmdrv.h [1.2]: 2000/09/19 19:00:31 lpd)

    Updates the license notices to reflect the name change from Aladdin
    Ghostscript to AFPL Ghostscript, as well as some internal references to the
    program name. (iutilasm.asm [1.2]: 2000/09/19 19:00:46 lpd)

    Version 6.23 (2000-08-07)

    This fileset consists mostly of bug fixes.

    All problems registered on SourceForge numbered 110922 or lower are closed,
    except for the following: 101549, 101814, 101905, 101955, 102146, 102735,
    104118, 105289, 105558, 106340, 106652, 109350, 110445, 110898, 110922.

    The following projects are in a partially completed state in the PDF writer:

    CID-keyed fonts (gdevpdf[eftw].c) -- barely started.

    Incompatible changes

    (Drivers)
    	- With high-level drivers ([e]pswrite, pdfwrite, pxl*, cgm*),
    changing the OutputFile after writing one or more pages now causes an error.
    (Interpreter)
    	- By default, copydevice will only copy a device prototype.
    	- Some internal references to contexts in zcontext.c are changed
    from direct pointers to context indices.
    	- Renames internal types to add a _t: ctx_list, ctx_status,
    gs_context, gs_condition, gs_lock.
    (Library)
    	- By default, gs_copydevice[2] will only copy a device prototype.

    Documentation

    Fixes problems:
    	- Local GC in a multi-context system caused a crash. Also updates
    all the internal type names in zcontext.c by adding a _t suffix if
    necessary. (doc/News.htm [1.54]: 2000/07/10 23:56:55 lpd)
    	- With some high-level drivers, changing the OutputFile after
    opening the device could cause a crash. After the fix, doing this works
    properly if no pages have actually been written out, but causes a rangecheck
    error if any pages have been written. (This is required to maintain internal
    consistency.) (doc/News.htm [1.55]: 2000/07/12 14:02:03 lpd)
    	- The documented limit on the length of a file name was incorrect.
    (doc/Language.htm [1.9]: 2000/08/03 06:45:25 lpd)

    Increments the version number, in preparation for the next fileset.
    (doc/News.htm [1.52]: 2000/07/06 02:45:06 lpd)

    Adds a finish_copydevice device procedure, for cleaning up after copying the
    bits of a device prototype or instance. For safety, the default
    implementation only allows copying the prototype, not instances. This is a
    NON-BACKWARD-COMPATIBLE change; however, using copydevice on a device
    instance never worked reliably, so it should not have been used this way
    before. (doc/Drivers.htm [1.4], doc/News.htm [1.53]: 2000/07/06 04:13:24
    lpd)

    Updates the references to the Computer Modern Fontmap on CTAN.
    (doc/Fonts.htm [1.5], doc/New-user.htm [1.8]: 2000/07/09 23:29:25 lpd)

    Updates a couple of release procedures. (doc/Release.htm [1.15]: 2000/07/10
    19:32:59 lpd)

    Adds documentation and a script for preparing GNU releases from Aladdin
    releases. (doc/Release.htm [1.16]: 2000/07/17 17:10:57 lpd)

    Clarifies that device parameters set with -d or -s can be changed
    subsequently. (doc/Use.htm [1.8]: 2000/07/17 20:13:03 lpd)

    Adds a project for making Ghostscript work as a Netscape browser plug-in.
    (doc/Projects.htm [1.13]: 2000/07/19 22:50:18 lpd)

    Removes the SVG driver from the list of projects, since there is a group
    close to completing one (referenced from the Ghostscript home page on the
    Web). (doc/Projects.htm [1.14]: 2000/07/20 14:49:52 lpd)

    Directs users to the Ghostscript home page on the Web for information about
    third-party drivers. (doc/New-user.htm [1.9]: 2000/07/20 14:50:34 lpd)

    Adds a partially implemented driver that just produces a trace of its
    drawing calls. This driver also serves as a minimal example of how to
    implement the high-level driver operations. (doc/Drivers.htm [1.5]:
    2000/07/29 04:00:00 lpd)

    Updates dates and version #s for the 6.23 fileset. (doc/Bug-info.htm [1.4],
    doc/Changes.htm [1.15], doc/Drivers.htm [1.6], doc/Fonts.htm [1.6],
    doc/History5.htm [1.3], doc/Htmstyle.htm [1.4], doc/Install.htm [1.5],
    doc/Language.htm [1.10], doc/New-user.htm [1.10], doc/News.htm [1.56],
    doc/Projects.htm [1.15], doc/Ps2pdf.htm [1.15], doc/Release.htm [1.17],
    doc/Use.htm [1.9], man/ps2ps.1 [1.6]: 2000/08/07 17:48:09 lpd)

    Procedures

    Fixes problems:
    	- $(GLGEN)/md5.h wasn't deleted after compilation. (lib.mak [1.26]:
    2000/07/09 23:19:59 lpd)
    	- TrueType font loading now requires the Adobe glyph list, but this
    dependency was missing from the makefile. (int.mak [1.26]: 2000/07/19
    08:11:15 lpd)
    	- During compilation, GLSRCDIR was searched before GLGENDIR. (We're
    very surprised that this didn't cause detectable trouble before.)
    (lib.mak [1.27]: 2000/07/19 14:32:00 lpd)
    	- The dependency on gsparamx.$(OBJ) was incorrectly attached to
    pdfwrite.dev rather than psdf.dev. (devs.mak [1.30]: 2000/08/03 17:42:52
    lpd)
    	- 'pre' didn't work with dates in August or September (Tcl doesn't
    accept 08 and 09 as valid numbers). (toolbin/pre [1.5]: 2000/08/07 17:35:27
    lpd)

    Increments the version number, in preparation for the next fileset.
    (version.mak [1.17]: 2000/07/06 02:45:06 lpd)

    Adds some user-contributed comments about using the Canon BJ200 driver with
    the BJ300. (contrib.mak [1.18]: 2000/07/11 15:33:19 lpd)

    Updates the (user-contributed) all-architecture build script to work around
    a detail in the SGI IRIX C library header files. (all-arch.mak [1.4]:
    2000/07/15 19:23:45 lpd)

    Adds documentation and a script for preparing GNU releases from Aladdin
    releases. (toolbin/makegnu.tcl [1.1]: 2000/07/17 17:10:57 lpd)

    Adds a partially implemented driver that just produces a trace of its
    drawing calls. This driver also serves as a minimal example of how to
    implement the high-level driver operations. (lib.mak [1.28]: 2000/07/29
    04:00:00 lpd)

    Changes 'gsmake' to report line number rather than character position for
    errors and warnings. (toolbin/gsmake.tcl [1.3]: 2000/08/07 17:22:27 lpd)

    Updates dates and version #s for the 6.23 fileset. (version.mak [1.18]:
    2000/08/07 17:48:10 lpd)

    Adds some missing dependencies. (int.mak [1.27], lib.mak [1.29]: 2000/08/07
    17:52:22 lpd)

    Utilities

    Fixes problems:
    	- An invalid file name or pattern passed to filenameforall would
    (incorrectly) return an empty string rather than not returning any file
    names at all. (gp_vms.c [1.3]: 2000/07/09 21:09:51 lpd)
    	- Some DOS/Windows script files didn't use 'call', so they would
    terminate execution prematurely if called from another script file.
    (lib/ps2pdf.bat [1.5], lib/ps2pdf12.bat [1.4], lib/ps2pdf13.bat [1.4],
    lib/ps2pdfxx.bat [1.8]: 2000/07/24 15:12:21 lpd)

    Drivers

    Implements finish_copydevice for X windows, to allow copying instances as
    well as the prototype. (gdevx.c [1.4], gdevx.h [1.3], gdevxini.c [1.7]:
    2000/07/06 05:29:46 lpd)

    Adds some user-contributed comments about using the Canon BJ200 driver with
    the BJ300. (gdevbj10.c [1.2]: 2000/07/11 15:33:19 lpd)

    PDF writer

    Fixes problems:
    	- M_2PI was predefined on some systems. (gdevpdfg.c [1.6]:
    2000/07/09 23:11:31 lpd)
    	- The word and character spacing values were not tracked correctly
    when mixing text and graphics, sometimes producing horizontally misplaced
    text. (gdevpdf.c [1.18], gdevpdfg.c [1.7], gdevpdfu.c [1.10],
    gdevpdfx.h [1.19]: 2000/07/11 14:33:54 lpd)
    	- 'show'ing an empty string could cause the next string to be
    positioned incorrectly. (gdevpdft.c [1.14]: 2000/07/27 14:18:11 lpd)

    Updates font embedding code to handle CIDFontType 2 fonts. NOT TESTED.
    (gdevpdfe.c [1.3]: 2000/07/27 04:18:13 lpd)

    Adds glyphs_used to FontDescriptors and pfd to std_fonts in the device
    structure. WORK IN PROGRESS. (gdevpdf.c [1.19], gdevpdff.c [1.7],
    gdevpdff.h [1.3], gdevpdfx.h [1.20]: 2000/07/27 04:19:24 lpd)

    Interpreter (PDF)

    Fixes problems:
    	- If a badly-constructed PDF file referenced one of the 12 base
    alphabetic fonts explicitly as a TrueType font (e.g., /BaseFont
    /TimesNewRoman /Subtype /TrueType) without embedding it, the substituted
    Type 1 font had the wrong Encoding. (lib/pdf_font.ps [1.10]: 2000/07/10
    13:18:28 lpd)
    	- Piped input beginning with a % caused an ioerror. (bug introduced
    in 6.22) (lib/pdf_main.ps [1.10]: 2000/07/14 05:30:19 lpd)
    	- As a result of some recent changes to fix other problems, setting
    certain text state parameters (Tf, Ts, Tz) outside of text mode (BT/ET)
    caused an error. (lib/pdf_ops.ps [1.6]: 2000/07/19 15:57:54 lpd)
    	- Setting a singular text matrix (e.g., 0 0 0 0   Tm) caused
    an error. (lib/pdf_ops.ps [1.7]: 2000/08/04 16:08:05 lpd)

    Interpreter

    Fixes problems:
    	- Removes the '?' procedure, which was defined solely for the
    convenience of users who don't read the documentation and which interfered
    with the operation of some code produced by the Adobe PS5 Windows driver.
    (lib/gs_init.ps [1.18]: 2000/07/09 22:34:30 lpd)
    	- A constant 1 should have been 1L, causing a warning on systems
    where sizeof(long) > sizeof(int). (zarith.c [1.3]: 2000/07/09 23:10:58 lpd)
    	- The workaround for attempting to set a 4-element PageSize value in
    a page device sometimes caused an error. (bug introduced in 6.21)
    (lib/gs_setpd.ps [1.4]: 2000/07/10 12:48:54 lpd)
    	- Redefining setcolorspace could cause an infinite recursion.
    (lib/gs_lev2.ps [1.5]: 2000/07/10 13:35:24 lpd)
    	- Local GC in a multi-context system caused a crash. Also updates
    all the internal type names in zcontext.c by adding a _t suffix if
    necessary. (zcontext.c [1.4]: 2000/07/10 23:56:55 lpd)
    	- A garbage collection occurring within a save could cause a memory
    access error. (bug introduced in 6.22) (zcontext.c [1.5]: 2000/07/14
    05:28:56 lpd)
    	- Piped input beginning with a % caused an ioerror. (bug introduced
    in 6.22) (zfileio.c [1.8]: 2000/07/14 05:30:19 lpd)
    	- A garbage collection occurring while scanning a binary token
    sequence could cause a syntaxerror or corrupted data. (iscan.c [1.3]:
    2000/07/18 15:39:02 lpd)
    	- (correction) An interruption (including a callout for a
    procedure-based stream), not a garbage collection, while scanning a binary
    token sequence could cause a syntaxerror or corrupted data. (iscan.c [1.4]:
    2000/07/18 15:41:55 lpd)
    	- When loading a TrueType font, invalid glyph numbers in the 'post'
    table (which appear in some Adobe-created PDF files) caused an error instead
    of being ignored; a test was backwards, causing some embedded TrueType fonts
    in PDF files to produce a rangecheck error. (lib/gs_ttf.ps [1.6]: 2000/07/19
    08:12:41 lpd)
    	- When NOPROMPT was set, no flush or flushpage occurred at the end
    of a page. (fix from an anonymous user on SourceForge)
    (lib/gs_init.ps [1.19]: 2000/07/20 01:40:50 lpd)
    	- Type 1 or Type 2 fonts with invalid LanguageGroup values < 0
    caused an error. (Such fonts are invalid, but some real fonts have garbage
    LanguageGroup values, and Adobe software doesn't give an error.)
    (zfont1.c [1.6]: 2000/07/24 18:08:38 lpd)
    	- Errors while executing gs_init.ps and other PostScript
    initialization files were sometimes ignored, leading to mysterious error
    messages later. (imainarg.c [1.3]: 2000/08/03 06:43:17 lpd)
    	- Showing text with a singular matrix (scaling matrix x CTM) could
    leave extraneous values on the operand stack. (zchar1.c [1.4]: 2000/08/04
    16:09:30 lpd)

    Increments the version number, in preparation for the next fileset.
    (lib/gs_init.ps [1.15]: 2000/07/06 02:45:06 lpd)

    Redefines [gs_]copydevice in terms of a new gs_copydevice2/.copydevice2,
    which adds a Boolean keep_open argument that requests (but does not
    guarantee) that a copy of an open device remain open.
    (lib/gs_init.ps [1.16], zdevice.c [1.2]: 2000/07/06 03:26:13 lpd)

    Adds a finish_copydevice device procedure, for cleaning up after copying the
    bits of a device prototype or instance. For safety, the default
    implementation only allows copying the prototype, not instances. This is a
    NON-BACKWARD-COMPATIBLE change; however, using copydevice on a device
    instance never worked reliably, so it should not have been used this way
    before. (lib/gs_init.ps [1.17]: 2000/07/06 04:13:24 lpd)

    Adds the ability to load CIDFont resources from CFF OpenType font files.
    (lib/gs_cff.ps [1.6], lib/gs_cidfn.ps [1.16]: 2000/07/29 05:58:28 lpd)

    Ensures that errordict has at least one empty entry, for the sake of some
    astonishingly bad PostScript code that tests for this and has a bug in the
    case where it isn't true. (lib/gs_init.ps [1.20]: 2000/08/04 04:29:45 lpd)

    Library

    Fixes problems:
    	- Some coordinate computations for Type 1 fonts could lose far too
    much precision if _fixed_shift was reduced. (gscoord.c [1.2],
    gxmatrix.h [1.2]: 2000/07/11 09:25:46 lpd)
    	- If the current color space was DeviceRGB, gs_currentgray returned
    the wrong value. (bug introduced in 6.22) (gscolor.c [1.3]: 2000/07/11
    14:00:09 lpd)
    	- With some high-level drivers, changing the OutputFile after
    opening the device could cause a crash. After the fix, doing this works
    properly if no pages have actually been written out, but causes a rangecheck
    error if any pages have been written. (This is required to maintain internal
    consistency.) (gdevvec.c [1.4]: 2000/07/12 14:02:04 lpd)
    	- A file had accidentally acquired an incorrect license notice.
    (gscoord.c [1.4]: 2000/07/13 02:02:09 lpd)
    	- Type 2 fonts that used the 'hflex' operator could produce
    distorted characters (e.g., slanted bottoms). (gstype2.c [1.4]: 2000/07/13
    02:09:21 lpd)
    	- The use of macros within procedure argument lists confused
    ansi2knr. (gximage3.c [1.5], gximage3.h [1.3]: 2000/07/19 14:30:45 lpd)
    	- Freeing a locking allocator could cause infinite recursion.
    (gsmemlok.c [1.2]: 2000/07/19 21:32:12 lpd)
    	- "Accurate curves" was a no-op for certain cases of horizontal or
    vertical tangents. (gxpcopy.c [1.2]: 2000/08/05 01:04:28 lpd)

    Increments the version number, in preparation for the next fileset.
    (gscdef.c [1.5]: 2000/07/06 02:45:06 lpd)

    Redefines [gs_]copydevice in terms of a new gs_copydevice2/.copydevice2,
    which adds a Boolean keep_open argument that requests (but does not
    guarantee) that a copy of an open device remain open. (gsdevice.c [1.5],
    gsdevice.h [1.2]: 2000/07/06 03:26:13 lpd)

    Adds a finish_copydevice device procedure, for cleaning up after copying the
    bits of a device prototype or instance. For safety, the default
    implementation only allows copying the prototype, not instances. This is a
    NON-BACKWARD-COMPATIBLE change; however, using copydevice on a device
    instance never worked reliably, so it should not have been used this way
    before. (gdevbbox.c [1.2], gdevdflt.c [1.2], gdevht.c [1.2],
    gdevmem.h [1.2], gdevnfwd.c [1.2], gdevprn.h [1.5], gdevrops.c [1.2],
    gsdevice.c [1.6], gxacpath.c [1.2], gxclip.c [1.2], gxclip2.c [1.2],
    gxclipm.c [1.2], gxclist.c [1.2], gxdevcli.h [1.2], gxdevice.h [1.3],
    gxpcmap.c [1.2]: 2000/07/06 04:13:24 lpd)

    Adds a little more tracing output for images. (gxidata.c [1.3]: 2000/07/09
    21:04:25 lpd)

    Adds _simple_final structure type definition macros. (gsstruct.h [1.3]:
    2000/07/10 15:43:30 lpd)

    Removes a structure member no longer needed after a recent fix.
    (gscoord.c [1.3], gxmatrix.h [1.3]: 2000/07/12 04:49:43 lpd)

    Adds the ability to write subsetted CIDFontType 2 (TrueType-based) fonts.
    (gdevpsf.h [1.6], gdevpsft.c [1.2], gdevpsfu.c [1.3], gxfcid.h [1.5]:
    2000/07/21 01:09:16 lpd)

    Adds a partially implemented driver that just produces a trace of its
    drawing calls. This driver also serves as a minimal example of how to
    implement the high-level driver operations. (gdevtrac.c [1.1]: 2000/07/29
    04:00:00 lpd)

    Improves the smoothness of ShadingType 4 - 7 gradient fills.
    (gxshade4.c [1.2], gxshade6.c [1.2]: 2000/08/03 20:47:48 lpd)

    Updates dates and version #s for the 6.23 fileset. (gscdef.c [1.6]:
    2000/08/07 17:48:10 lpd)

    Version 6.22 (2000-07-05)

    This fileset consists mostly of bug fixes.  It also further improves the PDF
    writer, which now handles ImageType 3 images and PatternType 2 (shading)
    patterns.

    All problems registered on SourceForge numbered 108819 or lower are closed,
    except for the following: 101549, 101814, 101905, 101955, 102146, 102735,
    104118, 105289, 105558, 106340, 106652, 108639.

    The following projects are in a partially completed state in the PDF writer:

    CID-keyed fonts (gdevpdf[eftw].c) -- barely started.

    Incompatible changes

    (Procedures)
    	- Versions now have odd numbers during development, even numbers
    when released.
    	- The TMPDIR environment variable, if set, now takes precedence
    over TEMP.
    	- On MS-DOS, MS Windows, and OS/2 platforms, the batch files that
    invoke Ghostscript now use a default name of gswin32 or gswin32c rather than
    simply gs.
    (Drivers)
    	- The PCL drivers now select a given paper size if the requested
    height is at least 0.1" greater than the height of the next smaller paper
    size, rather than if the requested height is at least as large as that of
    the given paper size.
    (Interpreter)
    	- user_names_p and system_names_p may now be NULL: clients must
    check this.
    	- scan_comment_proc and scan_dsc_proc are now deprecated, and will
    disappear in the near future.
    	- The values in psuserparams are now checking procedures rather
    than parameter values.
    	- Comments beginning with %! are treated as "DSC comments", like
    comments beginning with %%.
    (Library)
    	- The macro for declaring the fill_rectangle procedure of a shading
    is now upper-case.  The fill_rectangle procedure is now a member of a procs
    structure; there is a new macro for calling it.
    	- The parameter list and return value for gs_currentgray have
    changed.  This is very unfortunate, but it was unavoidable.

    Documentation

    Fixes problems:
    	- The batch files for MS-DOS, MS Windows, and OS/2 referred to the
    executable by the name 'gs'. They now use environment variables GS
    (graphical) and GSC (console) for the executable names, defaulting to
    gswin32 and gswin32c respectively. (doc/News.htm [1.45], doc/Use.htm [1.6]:
    2000/05/20 20:53:04 lpd)
    	- The -dCompatibilityLevel= switch was incorrectly identified in one
    place as -dCompatibility=. (doc/Ps2pdf.htm [1.11]: 2000/05/22 21:29:45 lpd)
    	- [gs_]currentgray didn't return the correct value if the current
    color space was a DeviceN space using the alternate space.
    (doc/News.htm [1.49]: 2000/07/03 15:28:26 lpd)
    	- Fixes a couple of typos. (doc/Release.htm [1.12]: 2000/07/04
    19:19:38 lpd)
    	- The "smoke test" procedure for fileset releases didn't stress the
    banding code nearly as hard as intended. (doc/Release.htm [1.13]: 2000/07/05
    04:50:13 lpd)

    Adds predefined pdfwrite settings similar to the three standard settings in
    Adobe Acrobat Distiller 4, plus a "default" setting, with
    -dPDFSETTINGS=/settingname. (doc/Ps2pdf.htm [1.10]: 2000/04/29 02:29:20 lpd)

    Increments the version number to 6.23. From now on, we use odd numbers
    during development, even numbers for released filesets.
    (doc/Changes.htm [1.12], doc/History6.htm [1.7], doc/News.htm [1.40],
    doc/Release.htm [1.11]: 2000/04/29 16:49:43 lpd)

    Implements ImageType 3 images in the PDF writer. (doc/News.htm [1.41]:
    2000/04/30 06:21:58 lpd)

    Creates a procs structure for shadings, moving the fill_rectangle procedure
    into it, in anticipation of adding a get_params procedure.
    (doc/News.htm [1.42]: 2000/04/30 19:37:37 lpd)

    Implements PatternType 2 patterns and shfill in the PDF writer.
    (doc/News.htm [1.43]: 2000/05/02 07:14:58 lpd)

    Adds a reference to Karel Kulhavy's pdf2html program.
    (doc/New-user.htm [1.6]: 2000/05/04 21:16:44 lpd)

    Adds a small project to remove the limit on the length of the OutputFile
    parameter for printer drivers. (doc/Projects.htm [1.9]: 2000/05/06 00:32:08
    lpd)

    Documents the addition of TMPDIR for specifying the directory for temporary
    files. (doc/News.htm [1.44], doc/Use.htm [1.5]: 2000/05/19 17:59:28 lpd)

    Adds (more) user-contributed uniprint parameter files for the Epson Stylus
    Color 640. (doc/Devices.htm [1.8]: 2000/05/23 18:58:56 lpd)

    Adds implementation of the %font% IODevice to the list of projects.
    (doc/Projects.htm [1.10]: 2000/05/24 23:30:15 lpd)

    Documents the change in the paper size selection for PCL drivers.
    (doc/News.htm [1.46]: 2000/05/30 03:26:15 lpd)

    Adds glyph decaching notification to the list of projects.
    (doc/Projects.htm [1.11]: 2000/05/30 05:54:23 lpd)

    Documents that user_names_p and system_names_p may now be NULL.
    (doc/News.htm [1.47]: 2000/06/05 01:26:05 lpd)

    Adds the ability to write multi-strip monochrome TIFF files, controlled by a
    new MaxStripSize parameter for the monochrome TIFF drivers.
    (doc/Devices.htm [1.9]: 2000/06/05 05:41:55 lpd)

    Updates the open ICC color support project to reference Graeme Gill's icclib
    package. (doc/Projects.htm [1.12]: 2000/06/08 02:55:37 lpd)

    Adds an umbrella document for maintenance procedures, initially describing
    the procedure for uploading bug report test data to SourceForge.
    (doc/Maintain.htm [1.1], doc/Readme.htm [1.8]: 2000/06/13 20:27:26 lpd)

    Updates documentation to reflect the use of the GSC environment variable to
    set the name of the executable for ps2pdf. (doc/Ps2pdf.htm [1.12]:
    2000/06/21 17:10:41 lpd)

    Updates documentation on the ProcessColorModel and ColorConversionStrategy
    parameters. (doc/Ps2pdf.htm [1.13]: 2000/06/21 18:06:07 lpd)

    Adds user parameters ProcessComment and ProcessDSCComment. If not null,
    these procedures are called with the file and the comment line whenever the
    scanner detects a comment (or non-DSC comment) or DSC comment. NOTE: the
    interpreter is currently patched so that ProcessComment is never called.
    (doc/Language.htm [1.4], doc/News.htm [1.48]: 2000/06/27 00:53:38 lpd)

    Adds a reference to a user-maintained Czech translation of the Ghostscript
    'man' pages. (doc/Readme.htm [1.9]: 2000/06/27 14:03:29 lpd)

    Brings the language documentation (more) up to date.
    (doc/Language.htm [1.5]: 2000/06/29 16:00:48 lpd)

    Improves the documentation of copydevice regarding where it allocates the
    copy, and documents finddevice. (doc/Drivers.htm [1.2],
    doc/Language.htm [1.6]: 2000/06/30 00:09:15 lpd)

    Adds a findprotodevice "operator", to find a device prototype by name.
    (doc/Language.htm [1.7]: 2000/07/05 04:49:11 lpd)

    Changes the version numbering system back to sequential (not odd/even).
    Between numbered filesets, GS_PRODUCT will say "CVS PRE-RELEASE".
    (doc/History6.htm [1.8], doc/News.htm [1.50]: 2000/07/05 17:23:54 lpd)

    Updates documentation related to version numbering, reflecting the move back
    to sequential numbering. (doc/Maintain.htm [1.2], doc/Release.htm [1.14]:
    2000/07/05 18:27:50 lpd)

    Updates documentation dates for making a fileset. (doc/Changes.htm [1.13],
    doc/Devices.htm [1.10], doc/Drivers.htm [1.3], doc/History6.htm [1.9],
    doc/Language.htm [1.8], doc/New-user.htm [1.7], doc/News.htm [1.51],
    doc/Ps2pdf.htm [1.14], doc/Readme.htm [1.10], doc/Use.htm [1.7]: 2000/07/06
    00:01:39 lpd)

    Procedures

    Fixes problems:
    	- The rule for the recently-added gdevhl12 driver omitted the space
    before the colon. (contrib.mak [1.12]: 2000/05/02 01:42:12 lpd)
    	- Once again, corrects an incorrect dependency list.
    (lib.mak [1.19]: 2000/05/02 07:14:11 lpd)
    	- smd5.c didn't compile properly with "traditional C" compilers.
    (lib.mak [1.20]: 2000/05/19 06:08:01 lpd)
    	- Temporary files weren't created as private or exclusive.
    (lib.mak [1.21], os2.mak [1.6], watc.mak [1.4], watclib.mak [1.4],
    winlib.mak [1.3]: 2000/05/19 17:52:51 lpd)
    	- The definitions of user names weren't properly associated with
    local VM (they were stored in a static variable). (int.mak [1.22]:
    2000/05/26 02:27:58 lpd)
    	- 'make install' on Unix systems didn't install pdfopt.ps and
    pdfwrite.ps. (unixinst.mak [1.11]: 2000/05/30 23:07:34 lpd)
    	- The dependency list for the new Epson Stylus Photo driver was
    wrong, causing build problems if this driver was included.
    (contrib.mak [1.13]: 2000/06/01 20:25:39 lpd)
    	- The change to implement stripped TIFF files broke non-TIFF fax
    output formats (faxg* drivers). Also factors plain-fax writing from TIFF
    writing. (devs.mak [1.26]: 2000/06/06 06:37:37 lpd)
    	- Corrects a typo introduced by recent changes. (msvctail.mak [1.3]:
    2000/06/07 06:36:54 lpd)
    	- Rendering TrueType fonts didn't adjust the flatness to ensure
    accurate results. (lib.mak [1.23]: 2000/06/20 15:46:53 lpd)
    	- The makefile missed a dependency (CIDFontType 0 fonts require
    FontType 2 fonts). (int.mak [1.23]: 2000/06/27 17:23:13 lpd)
    	- The makefiles didn't include the requirement that gs_mro_e.ps be
    loaded before gs_mgl_e.ps. (devs.mak [1.28], int.mak [1.24]: 2000/06/27
    17:36:42 lpd)
    	- A dependency was missing. (lib.mak [1.24]: 2000/07/04 19:05:12
    lpd)
    	- Fixes a typo; reduces the number of false warnings for
    documentation date mismatches. (toolbin/pre [1.4]: 2000/07/04 19:19:17 lpd)
    	- Fixes a typo. (contrib.mak [1.16]: 2000/07/04 22:30:10 lpd)
    	- Adds a missing dependency. (devs.mak [1.29]: 2000/07/04 22:30:33
    lpd)
    	- Adds a missing dependency. (contrib.mak [1.17]: 2000/07/06
    00:00:13 lpd)

    Increments the version number to 6.23. From now on, we use odd numbers
    during development, even numbers for released filesets. (version.mak [1.15]:
    2000/04/29 16:49:43 lpd)

    Restructures the code for handling ImageType 3 images, for the benefit of
    the PDF writer. (lib.mak [1.18]: 2000/04/30 03:08:15 lpd)

    Implements ImageType 3 images in the PDF writer. (devs.mak [1.23]:
    2000/04/30 06:21:58 lpd)

    Implements PatternType 2 patterns and shfill in the PDF writer.
    (devs.mak [1.24]: 2000/05/02 07:14:58 lpd)

    Adds the first draft of a driver for the Practical Automation ATX-23, -24,
    and -38 label/ticket printers, developed under contract. This has a dual
    GPL/AFPL license. (devs.mak [1.25]: 2000/05/03 20:30:06 lpd)

    Works around the fact that Microsoft Visual C++ (only) doesn't define the O_
    flags for the `open' library call. (lib.mak [1.22]: 2000/05/31 20:34:43 lpd)

    Makes it possible to build on MSVC++ systems without specifying the paths
    for the tools, headers, or libraries. See msvc{32,lib}.mak for details.
    (msvc32.mak [1.4], msvccmd.mak [1.4], msvclib.mak [1.4], msvctail.mak [1.2],
    winint.mak [1.4]: 2000/06/05 02:46:07 lpd)

    Adds a user-contributed driver for SFF (the file format for CAPI fax
    devices). (contrib.mak [1.14]: 2000/06/06 06:38:31 lpd)

    Notes that the vgalib driver only suppotrs 16-color modes. (devs.mak [1.27]:
    2000/06/06 15:28:01 lpd)

    Removes an obsolete file. (toolbin/package.tcl [1.2]: 2000/06/06 18:05:32
    lpd)

    Documents the fact that the IJG JPEG library header files must be available
    when compiling, even if SHARE_JPEG=1. (dvx-gcc.mak [1.3], jpeg.mak [1.2],
    unix-gcc.mak [1.6], unixansi.mak [1.4], unixtrad.mak [1.4]: 2000/06/07
    13:32:44 lpd)

    Finishes implementing the Process[DSC]Comment callout. (int.mak [1.25]:
    2000/06/28 20:17:00 lpd)

    Removes some third-party drivers with incompatible licenses.
    (contrib.mak [1.15]: 2000/07/02 22:11:31 lpd)

    Finishes working around the fact that Microsoft C, in defiance of multiple
    standards, by default doesn't define the O_ flags for 'open' in fcntl.h (or
    anywhere else). (lib.mak [1.25]: 2000/07/05 00:48:21 lpd)

    Changes the version numbering system back to sequential (not odd/even).
    Between numbered filesets, GS_PRODUCT will say "CVS PRE-RELEASE".
    (version.mak [1.16]: 2000/07/05 17:23:54 lpd)

    Utilities

    Fixes problems:
    	- Fixes a couple of minor Windows NT compatibility problems in
    script files. (lib/ps2pdf.bat [1.3], lib/ps2pdfxx.bat [1.5]: 2000/05/05
    03:21:03 lpd)
    	- Temporary files weren't created as private or exclusive.
    (gp_iwatc.c [1.3], gp_mswin.c [1.2], gp_os2.c [1.3]: 2000/05/19 17:52:51
    lpd)
    	- gsdll_init didn't propagate an error return from
    gs_main_init_with_args, causing clients to think Ghostscript was initialized
    properly when it wasn't. (gsdll.c [1.2]: 2000/05/20 14:39:42 lpd)
    	- The batch files for MS-DOS, MS Windows, and OS/2 referred to the
    executable by the name 'gs'. They now use environment variables GS
    (graphical) and GSC (console) for the executable names, defaulting to
    gswin32 and gswin32c respectively. (lib/bdftops.bat [1.2],
    lib/eps2eps.bat [1.3], lib/font2c.bat [1.2], lib/gsbj.bat [1.2],
    lib/gsdj.bat [1.2], lib/gsdj500.bat [1.2], lib/gslj.bat [1.2],
    lib/gslp.bat [1.2], lib/gsnd.bat [1.2], lib/gsndt.bat [1.2],
    lib/gssetgs.bat [1.1], lib/gst.bat [1.2], lib/gstt.bat [1.2],
    lib/lpgs.bat [1.2], lib/lpr2.bat [1.2], lib/pdf2ps.bat [1.3],
    lib/pdfopt.bat [1.2], lib/pftogsf.bat [1.2], lib/ps2ascii.bat [1.3],
    lib/ps2epsi.bat [1.3], lib/ps2pdfxx.bat [1.7], lib/ps2ps.bat [1.3]:
    2000/05/20 20:53:05 lpd)
    	- The ps2pdf.bat script didn't set the default PDF level, so it
    normally produced PDF 1.3 rather than 1.2, which was contrary to the
    documentation and different from the Unix ps2pdf script.
    (lib/ps2pdf.bat [1.4]: 2000/06/08 02:33:09 lpd)

    Adds a user-contributed program for displaying the differences between two
    AFM (font metric) files. This has a dual AFPL/GPL copyright.
    (lib/afmdiff.awk [1.1]: 2000/04/29 20:51:41 lpd)

    Removes an out-of-date e-mail address. (lib/ps2pdfxx.bat [1.4]: 2000/05/04
    16:40:08 lpd)

    Adds -dSAFER to all the format conversion scripts in which the input is
    executed as PostScript or PDF code. (lib/eps2eps [1.2],
    lib/eps2eps.bat [1.2], lib/pdf2dsc [1.2], lib/pdf2ps [1.3],
    lib/pdf2ps.bat [1.2], lib/ps2ascii [1.2], lib/ps2ascii.bat [1.2],
    lib/ps2epsi [1.3], lib/ps2epsi.bat [1.2], lib/ps2pdfwr [1.5],
    lib/ps2pdfxx.bat [1.6], lib/ps2ps [1.2], lib/ps2ps.bat [1.2]: 2000/05/19
    06:38:25 lpd)

    Adds -dSAFER to one more script. (lib/pdfopt [1.2]: 2000/05/30 05:28:22 lpd)

    Refactors some PDF-writing code for use in a PDF decompressor.
    (lib/pdfwrite.ps [1.2]: 2000/06/27 17:06:32 lpd)

    Adds a number of (user-maintained) command files for OS/2.
    (lib/bdftops.cmd [1.1], lib/eps2eps.cmd [1.1], lib/font2c.cmd [1.1],
    lib/pdf2ps.cmd [1.1], lib/pf2afm.cmd [1.1], lib/ps2ascii.cmd [1.1],
    lib/ps2epsi.cmd [1.1], lib/ps2pdf.cmd [1.1], lib/ps2pdf12.cmd [1.1],
    lib/ps2pdf13.cmd [1.1], lib/ps2ps.cmd [1.1]: 2000/07/05 16:21:13 lpd)

    Drivers

    Fixes problems:
    	- The "compressed data" command encoding was wrong in one place in
    the documentation, and the code used the incorrect encoding.
    (gdevatx.c [1.2]: 2000/05/06 00:31:25 lpd)
    	- If a file made no marks at all, ps2[e]ps produced bad output.
    (gdevps.c [1.8]: 2000/05/07 15:38:27 lpd)
    	- Returning an image compression parameter dictionary didn't close
    an enumeration, failing to free a bookkeeping structure. (gdevpsdp.c [1.5]:
    2000/05/11 16:13:16 lpd)
    	- The epswrite driver could produce output that used initclip, which
    is not allowed in EPS files. (gdevps.c [1.9]: 2000/05/20 06:36:30 lpd)
    	- The change to implement stripped TIFF files broke non-TIFF fax
    output formats (faxg* drivers). Also factors plain-fax writing from TIFF
    writing. (gdevfax.c [1.1], gdevfax.h [1.1], gdevtfax.c [1.3],
    gdevtfax.h [1.3]: 2000/06/06 06:37:37 lpd)
    	- In the X driver, resetting MaxBitmap didn't have the proper
    effect, and could cause a crash. (This is probably only a partial fix.)
    (gdevxini.c [1.4]: 2000/06/12 01:52:16 lpd)
    	- Finishes fixing the handling of MaxBitmap in the X driver.
    (gdevxini.c [1.5]: 2000/06/12 02:45:25 lpd)
    	- In the ATX drivers, the word count for compressed scan lines was
    written as 2 bytes rather than 1; the drivers wouldn't accept a page width
    greater than 2400 pixels. (gdevatx.c [1.4]: 2000/06/12 04:39:48 lpd)
    	- Works around a bug in the MSVC++ 5.0 compiler that treats (int <<
    unsigned) as unsigned rather than int. (gdevcd8.c [1.2], gdevcdj.c [1.2],
    gdevdj9.c [1.3]: 2000/06/20 14:21:34 lpd)
    	- Uncolored Patterns used with a gray color produced incorrect PDF
    output. (Bug introduced in 6.2x.) (gdevpsdu.c [1.5]: 2000/06/28 05:13:19
    lpd)
    	- Moves an assignment to eliminate a bogus warning from some picky
    compilers about a variable supposedly clobbered by longjmp.
    (gdevpng.c [1.2]: 2000/07/03 21:10:33 lpd)
    	- Two values were computed and not used. (gdevpx.c [1.3]: 2000/07/03
    21:30:41 lpd)
    	- [e]pswrite didn't guarantee a maximum line length of 255
    characters, and didn't mark binary data with %%BeginData:/%%EndData.
    (gdevps.c [1.10]: 2000/07/04 18:34:38 lpd)
    	- Fixes references to undeclared functions. (gdevdfax.c [1.2],
    gdevl256.c [1.2]: 2000/07/04 22:25:08 lpd)
    	- X Windows platform fonts were broken when using multiple device
    instances (windows). (gdevxxf.c [1.4]: 2000/07/05 18:20:41 lpd)

    Improves the test for whether compressing an image is worthwhile.
    (gdevpsdi.c [1.11]: 2000/04/30 01:26:41 lpd)

    When printing color values derived from 8-bit fields, rounds the output to 3
    decimal places for compactness with no loss of precision. (gdevpsdu.c [1.4]:
    2000/04/30 19:24:28 lpd)

    Adds the first draft of a driver for the Practical Automation ATX-23, -24,
    and -38 label/ticket printers, developed under contract. This has a dual
    GPL/AFPL license. (gdevatx.c [1.1]: 2000/05/03 20:30:06 lpd)

    Updates the ATX printer drivers to handle the unprintable margins.
    (gdevatx.c [1.3]: 2000/05/19 05:48:30 lpd)

    Adds (more) user-contributed uniprint parameter files for the Epson Stylus
    Color 640. (lib/st640ih.upp [1.1], lib/st640ihg.upp [1.1],
    lib/st640p.upp [1.1], lib/st640pg.upp [1.1], lib/st640pl.upp [1.1],
    lib/st640plg.upp [1.1]: 2000/05/23 18:58:56 lpd)

    Adds support for 11x17 paper in PCL printers; changes the paper size tests
    so that paper size N+1 is selected if the requested height is at least 0.1"
    greater than the height of paper size N. (gdevpcl.c [1.2], gdevpcl.h [1.2]:
    2000/05/30 03:24:17 lpd)

    Adds comments about H-P's inconsistent use of different names and size codes
    for the 11x17 paper size. (gdevpcl.c [1.3], gdevpcl.h [1.3]: 2000/05/30
    20:45:45 lpd)

    Adds the ability to write multi-strip monochrome TIFF files, controlled by a
    new MaxStripSize parameter for the monochrome TIFF drivers.
    (gdevtfax.c [1.2], gdevtfax.h [1.2], gdevtfnx.c [1.2], gdevtifs.c [1.2],
    gdevtifs.h [1.2]: 2000/06/05 05:41:55 lpd)

    Adds a user-contributed driver for SFF (the file format for CAPI fax
    devices). (gdevcfax.c [1.1]: 2000/06/06 06:38:31 lpd)

    Notes that the vgalib driver only suppotrs 16-color modes.
    (gdevvglb.c [1.2]: 2000/06/06 15:28:01 lpd)

    Adds some code contributed by Leon Bottou  that
    makes the X driver prefer TrueColor visuals. We aren't sure of the
    ramifications of this.... (gdevxini.c [1.6]: 2000/06/12 04:41:15 lpd)

    Updates the ATX driver(s) to enforce maximum page width and minimum page
    length. (gdevatx.c [1.5]: 2000/06/22 14:55:53 lpd)

    Removes some third-party drivers with incompatible licenses.
    (gdevcd8.c [1.3], gdevdj9.c [1.4], gdevhl12.c [1.2]: 2000/07/02 22:11:31
    lpd)

    Per user request, changes the license on the basic monochrome
    DeskJet/LaserJet drivers from AFPL to dual AFPL/GPL. (gdevdjet.c [1.5],
    gdevdljm.c [1.3], gdevdljm.h [1.3]: 2000/07/05 17:36:14 lpd)

    PDF writer

    Fixes problems:
    	- A "0 ||" was omitted, potentially causing some kinds of errors
    that never happen in practice to be overlooked. (gdevpdfi.c [1.17]:
    2000/05/02 01:55:10 lpd)
    	- Fixes minor syntactic incompatibilities with "traditional C"
    compilers. (gdevpdfg.c [1.5]: 2000/05/11 16:14:51 lpd)
    	- The PDF writer could still produce coordinates for paths that
    exceeded Acrobat Reader's user-coordinate limit of +/- 32K.
    (gdevpdfd.c [1.9]: 2000/05/23 21:05:00 lpd)
    	- In PDF 1.2 output, several synthesized Type 3 fonts could have the
    same name, producing errors and/or incorrect output. (bug introduced since
    6.01) (gdevpdf.c [1.17], gdevpdft.c [1.11], gdevpdfx.h [1.18]: 2000/05/24
    20:39:30 lpd)
    	- The FontDescriptor flags for non-embedded alphabetic fonts with
    non-Standard encodings incorrectly identified the font as a small-caps font.
    (gdevpdff.c [1.6]: 2000/05/30 23:04:23 lpd)
    	- Works around the fact that Acrobat Reader won't accept /MMType1
    fonts, but will accept MM Type 1 instances if they're tagged as /Type1
    rather than /MMType1. (gdevpdft.c [1.12], gdevpdfw.c [1.4]: 2000/06/12
    18:13:51 lpd)
    	- Embedded Type 1 (but not Type 2 / 1C) fonts were written without
    eexec encryption. We can't figure out how this happened, because the PDF
    spec requires eexec encryption and the correct code was commented out; we
    suppose this was a debugging or testing modification that got left in. (bug
    introduced since 6.01) (gdevpdfe.c [1.2]: 2000/06/12 18:15:20 lpd)
    	- Text in Type 3 synthesized fonts was often positioned incorrectly,
    usually too far to the left. (bug introduced since 6.01) (gdevpdft.c [1.13]:
    2000/06/13 16:34:42 lpd)
    	- Images that ended prematurely still (again?) weren't written
    correctly. (gdevpdfj.c [1.4]: 2000/06/27 06:32:03 lpd)

    Implements ImageType 3 images in the PDF writer. (gdevpdfb.c [1.1],
    gdevpdfg.h [1.6], gdevpdfi.c [1.16], gdevpdfj.c [1.3], gdevpdfx.h [1.16]:
    2000/04/30 06:21:58 lpd)

    Implements PatternType 2 patterns and shfill in the PDF writer.
    (gdevpdfc.c [1.11], gdevpdfg.h [1.7], gdevpdfo.c [1.3], gdevpdfo.h [1.3],
    gdevpdfv.c [1.1], gdevpdfx.h [1.17]: 2000/05/02 07:14:58 lpd)

    Interpreter (PDF)

    Fixes problems:
    	- PatternType 2 (shaded) Patterns caused errors.
    (lib/pdf_draw.ps [1.14]: 2000/05/02 07:03:09 lpd)
    	- -q (-dQUIET) didn't suppress all warnings from the PDF
    interpreter. (lib/pdf_base.ps [1.8]: 2000/05/07 15:51:18 lpd)
    	- FunctionType 3 functions with indirect /Bounds or /Encode entries
    caused a typecheck error. (lib/pdf_draw.ps [1.15]: 2000/06/07 19:08:00 lpd)
    	- If the TR element of an ExtGState was an array of Functions (for
    setcolortransfer) rather a single Function (for settransfer), an error
    occurred. (fix from Artifex) (lib/pdf_draw.ps [1.16]: 2000/06/12 00:40:45
    lpd)
    	- The code for keeping the Install procedure from getting more and
    more deeply nested didn't actually work, and also caused pages with a
    non-zero MediaBox offset to be translated incorrectly.
    (lib/pdf_main.ps [1.8]: 2000/06/12 19:17:03 lpd)
    	- PDF files with embedded TrueType fonts didn't map characters to
    glyph indices correctly (i.e., using the same algorithm as Acrobat Reader).
    (lib/pdf_font.ps [1.8]: 2000/06/21 02:15:01 lpd)
    	- The built-in Identity CMaps had an incorrect entry count for
    begincodespacerange and begincidrange; these CMaps, and all Type 0 fonts,
    were constructed in a way that was incompatible with some old Adobe font
    loading software. (lib/pdf_font.ps [1.9]: 2000/06/28 01:36:30 lpd)
    	- If PDF interpretation was included in the build, the very first
    line of a non-PDF file wouldn't be processed (if applicable) as a comment.
    (lib/pdf_main.ps [1.9]: 2000/06/29 15:55:13 lpd)

    Interpreter

    Fixes problems:
    	- localfork didn't properly initialize userdict in the new context.
    (lib/gs_dps.ps [1.2]: 2000/05/01 07:20:37 lpd)
    	- A null Pattern color caused an error. (zcolor2.c [1.2]: 2000/05/01
    15:15:06 lpd)
    	- Fixes minor syntactic incompatibilities with "traditional C"
    compilers. (zbfont.c [1.5], zfcid0.c [1.3]: 2000/05/11 16:14:51 lpd)
    	- The 'monitor' operator was broken (probably had never been
    tried!). (zcontext.c [1.2]: 2000/05/15 19:14:25 lpd)
    	- -dSTRICT caused an error, /undefined in SIZES.
    (lib/gs_statd.ps [1.3]: 2000/05/17 19:17:40 lpd)
    	- CFF CID fonts in which the FDSelect array occurred before the
    CharStrings caused an error. (lib/gs_cff.ps [1.5]: 2000/05/17 20:39:20 lpd)
    	- dict_matrix3_param didn't work correctly on platforms where the
    compiler aligned structures to a boundary larger than sizeof(float), causing
    incorrect output or arithmetic exceptions for CIE color spaces.
    (zcie.c [1.2]: 2000/05/18 19:02:25 lpd)
    	- Flushing or closing a procedure-based output stream still wasn't
    implemented correctly (it could cause an endless loop). (zfproc.c [1.3]:
    2000/05/19 19:35:01 lpd)
    	- 'monitor' left its operand on the stack. (zcontext.c [1.3]:
    2000/05/22 21:15:23 lpd)
    	- The definitions of user names weren't properly associated with
    local VM (they were stored in a static variable). (btoken.h [1.2],
    iref.h [1.2], iscanbin.c [1.3], zbseq.c [1.2], zdps.c [1.2]: 2000/05/26
    02:27:58 lpd)
    	- Invoking an image operator with an empty string data source caused
    an infinite loop. (zimage.c [1.4]: 2000/05/30 03:43:19 lpd)
    	- The fix for associating the user name array with local VM didn't
    create the user name table properly for new contexts with their own local
    VM. The user name array is now created lazily. (btoken.h [1.3],
    iscanbin.c [1.4], zbseq.c [1.3], zdps.c [1.3]: 2000/05/30 04:38:26 lpd)
    	- As a result of the fix removing the incorrect same-local-VM check
    in context_state_load, userparams wasn't updated properly when switching
    contexts. (icontext.c [1.3]: 2000/05/30 20:40:17 lpd)
    	- MAX_HALF_INTVAL was defined incorrectly, causing the mul operator
    to run slower than necessary when multiplying two small integers.
    (zarith.c [1.2]: 2000/06/04 17:00:29 lpd)
    	- Shadings with an array of Functions caused a rangecheck or
    typecheck error. (zshade.c [1.2]: 2000/06/04 18:26:17 lpd)
    	- If the new value of a device parameter was an array with some
    integers and some reals, and the first element was a real, a typecheck error
    would occur. (iparam.c [1.4]: 2000/06/19 22:22:51 lpd)
    	- PDF files with embedded TrueType fonts didn't map characters to
    glyph indices correctly (i.e., using the same algorithm as Acrobat Reader).
    (lib/gs_agl.ps [1.1], lib/gs_ttf.ps [1.5]: 2000/06/21 02:15:01 lpd)
    	- The dictionary used to hold Encodings wasn't large enough.
    (lib/gs_init.ps [1.10]: 2000/06/27 17:55:05 lpd)
    	- The change in parameter type checking required for the new
    Process[DSC]Comment user parameters broke type checking for system
    parameters. (lib/gs_lev2.ps [1.4]: 2000/06/27 17:56:04 lpd)
    	- Calling out to process a comment during scanning left an extra
    element on the operand stack if the comment appeared within { }.
    (ztoken.c [1.3]: 2000/06/28 00:47:05 lpd)
    	- In some cases, two successive DSC comments produced a syntaxerror.
    (ztoken.c [1.4]: 2000/06/28 05:14:17 lpd)
    	- The code for registering compiled fonts was sensitive to its
    position in the order of loading the initialization files (caused an error
    if loaded too early). (lib/gs_ccfnt.ps [1.3]: 2000/06/29 23:31:14 lpd)
    	- [gs_]currentgray didn't return the correct value if the current
    color space was a DeviceN space using the alternate space. (zcolor.c [1.3],
    zcolor1.c [1.2]: 2000/07/03 15:28:26 lpd)

    Adds predefined pdfwrite settings similar to the three standard settings in
    Adobe Acrobat Distiller 4, plus a "default" setting, with
    -dPDFSETTINGS=/settingname. (lib/gs_pdfwr.ps [1.4]: 2000/04/29 02:29:21 lpd)

    Increments the version number to 6.23. From now on, we use odd numbers
    during development, even numbers for released filesets.
    (lib/gs_init.ps [1.8]: 2000/04/29 16:49:43 lpd)

    Changes .buildfont1 to accept Type 1 fonts with LanguageGroup other than 0
    or 1. This is contrary to the spec, but we've seen a few fonts with other
    values. (zfont1.c [1.5]: 2000/05/06 08:19:37 lpd)

    Cleans up code and comments slightly. (lib/gs_dps.ps [1.3]: 2000/05/30
    20:35:56 lpd)

    Adds user parameters ProcessComment and ProcessDSCComment. If not null,
    these procedures are called with the file and the comment line whenever the
    scanner detects a comment (or non-DSC comment) or DSC comment. NOTE: the
    interpreter is currently patched so that ProcessComment is never called.
    (interp.c [1.4], iscan.c [1.2], iscan.h [1.2], lib/gs_init.ps [1.9],
    lib/gs_lev2.ps [1.3], ztoken.c [1.2], ztype.c [1.2]: 2000/06/27 00:53:38
    lpd)

    Finishes implementing the Process[DSC]Comment callout. (icontext.c [1.4],
    icstate.h [1.3], interp.c [1.5], iscan.h [1.3], itoken.h [1.1],
    lib/gs_init.ps [1.11], ztoken.c [1.5], zusparam.c [1.2]: 2000/06/28 20:17:00
    lpd)

    Changes the name of the unread operator to .unread, retaining unread as a
    synonym for backward compatibility. (lib/gs_init.ps [1.12], zfileio.c [1.7]:
    2000/06/29 15:58:24 lpd)

    Adds a findprotodevice "operator", to find a device prototype by name.
    (lib/gs_init.ps [1.13]: 2000/07/05 04:49:11 lpd)

    Changes the version numbering system back to sequential (not odd/even).
    Between numbered filesets, GS_PRODUCT will say "CVS PRE-RELEASE".
    (lib/gs_init.ps [1.14]: 2000/07/05 17:23:54 lpd)

    Streams

    Fixes problems:
    	- file_limit wasn't initialized properly in some cases.
    (sfxfd.c [1.4], sfxstdio.c [1.3]: 2000/05/02 02:06:41 lpd)
    	- smd5.c didn't compile properly with "traditional C" compilers.
    (smd5.c [1.2]: 2000/05/19 06:08:01 lpd)
    	- The workaround for Microsoft C's omission of O_APPEND et al caused
    warnings or errors with other compilers. (stat_.h [1.3]: 2000/07/03 21:07:05
    lpd)

    Works around the fact that Microsoft Visual C++ (only) doesn't define the O_
    flags for the `open' library call. (stat_.h [1.2]: 2000/05/31 20:34:43 lpd)

    Finishes working around the fact that Microsoft C, in defiance of multiple
    standards, by default doesn't define the O_ flags for 'open' in fcntl.h (or
    anywhere else). (stat_.h [1.4]: 2000/07/05 00:48:21 lpd)

    Library

    Fixes problems:
    	- A null Pattern color caused an error. (gspcolor.c [1.2]:
    2000/05/01 15:15:07 lpd)
    	- A procedure name exceeded VMS's 31-character limit.
    (gsparam.h [1.6]: 2000/05/02 01:47:50 lpd)
    	- If the DataSource of a shading was a reusable stream, the stream
    wasn't reset before rendering the shading. (gxshade.c [1.2]: 2000/05/02
    07:05:10 lpd)
    	- shfill didn't go through the device fill_path procedure,
    preventing it from being written out as a high-level PostScript or PDF
    construct. (gscolor3.c [1.2]: 2000/05/02 07:06:23 lpd)
    	- Once again, corrects an incorrect dependency list.
    (gscolor3.c [1.3]: 2000/05/02 07:14:11 lpd)
    	- The code for adding elements to small-string free lists was wrong,
    possibly causing an endless loop. (gsnogc.c [1.3]: 2000/05/04 01:29:53 lpd)
    	- Fixes minor syntactic incompatibilities with "traditional C"
    compilers. (gsfunc4.c [1.2], gstype42.c [1.5]: 2000/05/11 16:14:51 lpd)
    	- CIEBasedDEF[G] color spaces computed incorrect results or caused
    invalid memory accesses, especially if DecodeDEF[G] is not the identity
    function. (This bug had probably been there since these color spaces were
    first implemented, unnoticed because DecodeDEF[G] is almost always the
    identity.) (gscie.c [1.2], gsciemap.c [1.2], gxctable.c [1.2]: 2000/05/15
    19:58:38 lpd)
    	- Temporary files weren't created as private or exclusive.
    (close_.h [1.1], gp_unifs.c [1.2], gpmisc.c [1.1], gpmisc.h [1.1]:
    2000/05/19 17:52:51 lpd)
    	- OutputFile values starting with a %d format string caused an
    error. (bug introduced in 5.85) (gsdevice.c [1.4]: 2000/05/20 06:58:11 lpd)
    	- In rare cases, an overflow could occur in the filling loop,
    producing distorted output. (Fix from Artifex Software.) (gxfill.c [1.3]:
    2000/05/23 05:46:52 lpd)
    	- When writing PDF or PostScript, stroked rectangles could sometimes
    be omitted from the output. (gdevvec.c [1.3]: 2000/05/24 18:48:14 lpd)
    	- In PDF output, the conversion of Type 1 to Type 2 CharStrings
    didn't adjust the X offset of the accent for 'seac', causing accents to be
    displaced to the right. (gdevpsfx.c [1.3]: 2000/05/24 23:20:43 lpd)
    	- The definitions of user names weren't properly associated with
    local VM (they were stored in a static variable). (gsalloc.c [1.3],
    gxalloc.h [1.2]: 2000/05/26 02:27:58 lpd)
    	- The change for local user names didn't update the structure
    descriptor for gs_ref_memory_t. (gsalloc.c [1.4], gxalloc.h [1.3]:
    2000/05/26 02:33:38 lpd)
    	- The fix for 'seac' when converting Type 1 to Type 2 CharStrings
    wasn't quite complete. (gdevpsfx.c [1.4]: 2000/05/26 20:48:37 lpd)
    	- If [eo]clip set a rectangular region, clippath would return the
    rounded clipping box, not the correct clipping path. (gxcpath.c [1.2]:
    2000/05/31 22:20:04 lpd)
    	- ShadingType 2 shadings could cause an invalid memory access.
    (gsfunc3.c [1.3]: 2000/06/04 18:25:33 lpd)
    	- Printer drivers that didn't implement print_page_copies didn't
    print multiple copies of the same page on separate files if the OutputFile
    name included %d, and some drivers (such as the TIFF drivers) produced
    invalid output. (gdevprn.c [1.4]: 2000/06/05 02:04:26 lpd)
    	- 32-bit sample values in shading data didn't work, because some
    CPUs execute (1 << 32) as (1 << 0). (gxshade.c [1.3]: 2000/06/07 19:07:17
    lpd)
    	- Type 1 fonts without eexec encryption still included the 4 eexec
    padding bytes. (bug probably introduced since 6.0) (gdevpsf1.c [1.4]:
    2000/06/12 17:38:48 lpd)
    	- Axial shadings with a non-orthogonal CTM could fail to fill the
    required region. (fix from Artifex) (gxshade1.c [1.4]: 2000/06/12 21:45:19
    lpd)
    	- When allocator debugging was enabled (-Z@), 'restore' didn't clear
    vacated space in inner chunks. (gsalloc.c [1.5]: 2000/06/13 07:04:18 lpd)
    	- the row buffers for images weren't allocated with a stable
    allocator, possibly causing data corruption or invalid accesses if a
    PostScript program invoked save/restore within the data-reading procedure
    for an image. (gsimage.c [1.2]: 2000/06/13 07:05:21 lpd)
    	- Rendering TrueType fonts didn't adjust the flatness to ensure
    accurate results. (gstype42.c [1.6], gxchrout.c [1.1], gxchrout.h [1.1],
    gxtype1.c [1.5]: 2000/06/20 15:46:53 lpd)
    	- Calling get_params with a static (read-only) device prototype
    could cause a memory access error. (gsdparam.c [1.3]: 2000/06/22 14:05:49
    lpd)
    	- [gs_]currentgray didn't return the correct value if the current
    color space was a DeviceN space using the alternate space. (gscolor.c [1.2],
    gscolor.h [1.2], gscolor1.c [1.2]: 2000/07/03 15:28:26 lpd)
    	- Some picky compilers complained about "integer constant is
    unsigned in ANSI C, signed with -traditional". (md5.c [1.2]: 2000/07/03
    21:55:18 lpd)
    	- If TMPDIR wasn't defined, TEMP would be ignored. (bug introduced
    in 6.23) (gpmisc.c [1.4]: 2000/07/04 19:54:00 lpd)
    	- Watcom C requires the non-standard O_BINARY mode flag when opening
    (with open) a file that will later be opened in binary mode with fdopen.
    (gpmisc.c [1.6]: 2000/07/05 17:08:27 lpd)

    Restructures the code for handling ImageType 3 images, for the benefit of
    the PDF writer. (gximage3.c [1.3], gximage3.h [1.1]: 2000/04/30 03:08:15
    lpd)

    Implements ImageType 3 images in the PDF writer. (gximage3.c [1.4],
    gximage3.h [1.2]: 2000/04/30 06:21:58 lpd)

    Creates a procs structure for shadings, moving the fill_rectangle procedure
    into it, in anticipation of adding a get_params procedure. (gsshade.c [1.2],
    gsshade.h [1.2], gxshade.h [1.2]: 2000/04/30 19:37:37 lpd)

    Implements PatternType 2 patterns and shfill in the PDF writer.
    (gsptype2.c [1.2]: 2000/05/02 07:14:58 lpd)

    Changes gdev_prn_file_is_new from a macro to a procedure. (gdevprn.c [1.3],
    gdevprn.h [1.4]: 2000/05/20 20:25:48 lpd)

    Works around the fact that Microsoft Visual C++ defines S_IREAD and S_IWRITE
    but not their newer equivalents S_IRUSR and S_IWUSR. (gpmisc.c [1.2]:
    2000/05/24 18:49:54 lpd)

    Changes some assignments to work around over-zealous compiler warnings.
    (gxtype1.c [1.4]: 2000/05/24 23:52:58 lpd)

    Works around the fact that Microsoft Visual C++ (only) doesn't define the O_
    flags for the `open' library call. (gpmisc.c [1.3]: 2000/05/31 20:34:43 lpd)

    Improves some comments in A_fill_stripe. (gxshade1.c [1.3]: 2000/06/04
    20:58:23 lpd)

    Finishes working around the fact that Microsoft C, in defiance of multiple
    standards, by default doesn't define the O_ flags for 'open' in fcntl.h (or
    anywhere else). (fcntl_.h [1.1], gpmisc.c [1.5]: 2000/07/05 00:48:21 lpd)

    Adds O_BINARY to the Microsoft compatibility fcntl.h patch. (fcntl_.h [1.2]:
    2000/07/05 17:21:43 lpd)

    Changes the version numbering system back to sequential (not odd/even).
    Between numbered filesets, GS_PRODUCT will say "CVS PRE-RELEASE".
    (gscdef.c [1.3]: 2000/07/05 17:23:54 lpd)

    Updates GS_PRODUCT for making a fileset. (gscdef.c [1.4]: 2000/07/06
    00:01:03 lpd)

    Version 6.21 (2000-04-28)

    This fileset includes more PDF writer enhancements: conversion of embedded
    Type 1 fonts to Type 1C (smaller), handling of more color spaces for images,
    ImageType 4 images, compression of mask images, support for (tiled) Pattern
    colors, more graphics state distiller parameters, recording of graphics
    state functions in the output.  It also greatly improves the space usage and
    loading time for CMaps.

    All problems registered on SourceForge numbered 104890 or lower are closed,
    except for the following: 101549, 101814, 101905, 101955, 102146, 102735,
    103528, 104118, 104375.

    The following projects are in a partially completed state in the PDF writer:

    CID-keyed fonts (gdevpdf[eftw].c) -- barely started.

    ImageType 3 images (gdevpdf[ij].c) -- started.

    Incompatible changes

    (Drivers)
    	- The downsampling filters now require WidthIn and HeightIn,
    replacing Columns.
    	- The gp_ procedures for managing screen swapping between console
    and graphics are removed.
    	- Any driver that processes the pdfmark pseudo-parameter must now
    also return null for the "value" of the pdfmark parameter when (and only
    when) specifically requested.
    (PDF writer)
    	- The last argument of pdf_alloc_font has changed.
    	- pdf_set_color is renamed pdf_set_pure_color.
    	- When producing PDF 1.3 output, the base 14 fonts are now
    candidates for embedding just like any other fonts.
    (Interpreter)
    	- The .fontproperties procedure in gs_fonts.ps now takes an
    additional argument.
    	- The interpreter must no longer reference stdin/out/err directly.
    (Library)
    	- The internal representation of CMaps is changed completely, and
    has several new required members.
    	- gs_cmap is renamed gs_cmap_t; gx_code_map is renamed
    gx_code_map_t.
    	- Clients creating CMaps must call gs_cmap_init to initialize them.
    	- The library must no longer reference stdin/out/err directly.

    Documentation

    Fixes problems:
    	- The PDF writer could get an ioerror when downsampling images whose
    size wasn't an exact multiple of the downsampling factor.
    (doc/News.htm [1.31]: 2000/04/13 16:44:59 lpd)
    	- When processing a PDF file, the font substitution heuristic based
    on the FontName sometimes overrode the Flags information in the
    FontDescriptor. (doc/News.htm [1.34]: 2000/04/20 06:36:02 lpd)
    	- When pdfwrite was producing PDF 1.3 output, the base 14 fonts were
    never embedded, rather than being handled like all other fonts.
    (doc/News.htm [1.37]: 2000/04/20 23:49:40 lpd)
    	- The URL for the Arphic free Chinese fonts had become incorrect.
    (doc/Fonts.htm [1.3]: 2000/04/27 13:44:52 lpd)
    	- Fixes a few typos, and adds GS_FONTPATH to the list of environment
    variables to be unset for a pristine test run. (doc/Release.htm [1.10]:
    2000/04/28 22:08:41 lpd)

    Adds projects related to SVG and to pswrite image compression.
    (doc/Projects.htm [1.4]: 2000/04/07 18:39:12 lpd)

    Makes the ps2pdf scripts replace a .eps extension with .pdf, as they do with
    .ps. (doc/Ps2pdf.htm [1.7], man/ps2pdf.1 [1.5], man/ps2pdfwr.1 [1.2]:
    2000/04/07 19:28:14 lpd)

    Completely redesigns the representation of CMaps, to reduce space
    requirements and make comparing them more reasonable, changing gs_cmap to
    gs_cmap_t and gx_code_map to gx_code_map_t. (****** NOTE ****** The
    PostScript code currently only handles a few well-behaved CMap structures.)
    (doc/News.htm [1.27]: 2000/04/08 03:54:38 lpd)

    Documents the need to set SYNC=nosync on NextStep / OpenStep systems.
    (doc/Make.htm [1.10]: 2000/04/10 04:45:37 lpd)

    Overhauls font embedding in the PDF writer: splits off the code into a new
    file (gdevpdfe.c), writes embedded Type 1 fonts as Type 1C (CFF Type 2), and
    adds a little bit of code for future support of Type 0 and CID-keyed fonts.
    (doc/News.htm [1.28]: 2000/04/10 07:48:37 lpd)

    Documents the fact that building on NeXTSTEP 3.3 systems requires removing
    -Wmissing-declarations from GCFLAGS. (doc/Make.htm [1.11]: 2000/04/11
    14:06:54 lpd)

    Enhances pdf2ps to allow defaulting the output file name.
    (man/pdf2ps.1 [1.2]: 2000/04/11 14:23:24 lpd)

    Factors out code for writing functions and for adding filter-related entries
    to a stream dictionary; implements the DefaultRenderingIntent distiller
    parameter. (doc/Ps2pdf.htm [1.8]: 2000/04/11 16:06:57 lpd)

    Implements additional distiller parameters: PreserveHalftoneInfo,
    PreserveOverprintSetting, TransferFunctionInfo (except for Apply vs.
    Remove), UCRandBGInfo. Splits off graphics state management into separate
    files. Implements the remaining graphics state parameters (halftone,
    transfer function, black generation, undercolor removal, halftone phase,
    smoothness, overprint, stroke adjustment) ****** EXCEPT FOR IMAGES ******.
    In anticipation of handling more general colors, renames pdf_set_color as
    pdf_set_pure_color, and adds pdf_set_drawing_color. (doc/News.htm [1.29]:
    2000/04/11 18:31:32 lpd)

    Updates documentation to match recent changes in the pdfwrite driver.
    (doc/Ps2pdf.htm [1.9]: 2000/04/11 22:56:17 lpd)

    Makes the second argument of the pfbtopfa script optional, so 'pfbtopfa
    dir/x.pfb' is equivalent to 'pfbtopfa dir/x.pfb x.pfa'.
    (man/pfbtopfa.1 [1.2]: 2000/04/12 17:41:41 lpd)

    In pdfwrite, rewrites the image writing code to use Cos objects rather than
    direct printing, and splits off the creation of image dictionaries into a
    new file; adds support for tiling with uncolored Patterns; implements
    converting ImageType 4 images to their PDF 1.3 counterpart; starts to do the
    same for ImageType 3. This code is "in progress" and likely to have problems
    for a while. (doc/News.htm [1.30]: 2000/04/12 18:44:35 lpd)

    Implements pdfwrite compression for mask images, using the same parameters
    as for monochrome images. (doc/News.htm [1.32]: 2000/04/13 18:40:23 lpd)

    Adds user-contributed uniprint parameter files for the Canon BJC-8200,
    including an addition for the Red Hat printer data base.
    (doc/Devices.htm [1.4]: 2000/04/14 03:59:57 lpd)

    Slightly updates the user-contributed documentation on the new BJC-8200
    uniprint parameters. (doc/Devices.htm [1.5]: 2000/04/15 00:20:54 lpd)

    Completes code for reading and writing CMaps. (doc/News.htm [1.33]:
    2000/04/16 03:05:29 lpd)

    Clarifies some details of posting releases on SourceForge.
    (doc/Release.htm [1.9]: 2000/04/17 22:59:24 lpd)

    Converts the ps2epsi documentation to HTML. (doc/Ps2epsi.htm [1.1],
    doc/Readme.htm [1.6], doc/ps2epsi.txt [1.2]: 2000/04/18 17:59:13 lpd)

    Adds a couple of graphics library optimization projects.
    (doc/Projects.htm [1.5]: 2000/04/19 04:05:11 lpd)

    Adds a project for creating an OutputDevice resource instance for each
    device. (doc/Projects.htm [1.6]: 2000/04/19 21:37:47 lpd)

    Checks in the accumulated change log. (doc/Changes.htm [1.10]: 2000/04/20
    07:24:22 lpd)

    Removes the gp_ procedures for managing screen swapping between console and
    graphics, which haven't been used for a long time and are no longer useful.
    (doc/News.htm [1.35]: 2000/04/20 22:47:35 lpd)

    Removes all remaining direct references to stdin/out/err from the library,
    interpreter, and non-contributed drivers; moves the ersatz definitions of
    stdin/out/err to a new header file. (doc/News.htm [1.36]: 2000/04/20
    23:30:22 lpd)

    Reduces the startup time for displaying PDF files, by skipping the creation
    of pdfmarks for annotations and outlines when the output device doesn't
    process pdfmarks. (doc/News.htm [1.38]: 2000/04/21 16:58:28 lpd)

    Notes that even if SHARE_JPEG=1, the IJG library sources are required.
    (doc/Make.htm [1.12]: 2000/04/27 07:39:05 lpd)

    Documents the new -dPrinted[=true/false] switch for PDF files.
    (doc/Use.htm [1.3]: 2000/04/27 08:17:05 lpd)

    Adds a MD5Encode filter, which computes the 16-byte MD5 digest of the input.
    No output is produced until the filter is closed. (doc/Language.htm [1.2]:
    2000/04/27 14:39:57 lpd)

    Updates the description of the project to produce higher-level PCL output.
    (doc/Projects.htm [1.7]: 2000/04/28 10:42:02 lpd)

    Adds a sample file containing a wide variety of PDF annotations; updates
    documentation for this and some other overlooked files.
    (doc/Psfiles.htm [1.4]: 2000/04/28 10:51:02 lpd)

    Notes that the uniprint dnj750c.upp parameters are also good for the 450C.
    (doc/Devices.htm [1.6]: 2000/04/28 14:27:02 lpd)

    Updates release dates. (man/pdf2ps.1 [1.3], man/ps2ps.1 [1.5]: 2000/04/28
    18:29:32 lpd)

    Updates version numbers and dates for the 6.21 fileset.
    (doc/Bug-form.htm [1.6], doc/Devices.htm [1.7], doc/Fonts.htm [1.4],
    doc/Language.htm [1.3], doc/Make.htm [1.13], doc/Projects.htm [1.8],
    doc/Ps2epsi.htm [1.2], doc/Psfiles.htm [1.5], doc/Readme.htm [1.7],
    doc/Use.htm [1.4]: 2000/04/28 22:06:25 lpd)

    Updates the news for the 6.21 fileset. (doc/News.htm [1.39]: 2000/04/28
    22:18:16 lpd)

    Procedures

    Fixes problems:
    	- Some makefile macros were used before being defined.
    (devs.mak [1.9], lib.mak [1.9]: 2000/04/07 16:02:03 lpd)
    	- `make install-data' didn't install lib/gs_frsd.ps or
    lib/pdfopt.ps. (unixinst.mak [1.7]: 2000/04/07 19:17:48 lpd)
    	- gsmake would get into a loop if the makefile was not a symbolic
    link; `gsmake check' didn't accept a makefile name on the command line.
    (toolbin/gsmake.tcl [1.2]: 2000/04/07 19:37:21 lpd)
    	- `makemaster' referred to an undefined variable. (How could it ever
    have worked?) (toolbin/makeset.tcl [1.3]: 2000/04/07 19:39:27 lpd)
    	- A dependency wasn't updated when moving the gdevpsf* rules from
    devs.mak to lib.mak. (lib.mak [1.10]: 2000/04/07 19:40:25 lpd)
    	- The dependencies in the makefile weren't updated for the pdfwrite
    font embedding overhaul. (devs.mak [1.11]: 2000/04/10 18:57:33 lpd)
    	- Once again, the dependencies hadn't been updated. (int.mak [1.17]:
    2000/04/11 15:59:42 lpd)
    	- Setting pdfwrite parameters for a DCTEncode filter could cause a
    crash (memory fault). (devs.mak [1.16]: 2000/04/13 01:53:07 lpd)
    	- `make install' didn't install all the documentation files.
    (unixinst.mak [1.9]: 2000/04/14 04:06:13 lpd)
    	- The Color LaserJet 5 drivers were incorrectly identified as
    "supported" rather than "contributed". (contrib.mak [1.7], devs.mak [1.17]:
    2000/04/20 17:12:54 lpd)
    	- PDF images with a bitmap Mask caused errors or produced incorrect
    output. (int.mak [1.20]: 2000/04/24 00:59:04 lpd)

    Completely redesigns the representation of CMaps, to reduce space
    requirements and make comparing them more reasonable, changing gs_cmap to
    gs_cmap_t and gx_code_map to gx_code_map_t. (****** NOTE ****** The
    PostScript code currently only handles a few well-behaved CMap structures.)
    (int.mak [1.16]: 2000/04/08 03:54:38 lpd)

    Updates version #s to 6.21. (We should have done this earlier.)
    (version.mak [1.12]: 2000/04/10 04:46:36 lpd)

    Overhauls font embedding in the PDF writer: splits off the code into a new
    file (gdevpdfe.c), writes embedded Type 1 fonts as Type 1C (CFF Type 2), and
    adds a little bit of code for future support of Type 0 and CID-keyed fonts.
    (devs.mak [1.10]: 2000/04/10 07:48:37 lpd)

    Adds Function-based tint_transform procedures for Separation and DeviceN
    color spaces. (lib.mak [1.11]: 2000/04/10 19:02:19 lpd)

    Factors out code for writing functions and for adding filter-related entries
    to a stream dictionary; implements the DefaultRenderingIntent distiller
    parameter. (devs.mak [1.12]: 2000/04/11 16:06:57 lpd)

    Implements additional distiller parameters: PreserveHalftoneInfo,
    PreserveOverprintSetting, TransferFunctionInfo (except for Apply vs.
    Remove), UCRandBGInfo. Splits off graphics state management into separate
    files. Implements the remaining graphics state parameters (halftone,
    transfer function, black generation, undercolor removal, halftone phase,
    smoothness, overprint, stroke adjustment) ****** EXCEPT FOR IMAGES ******.
    In anticipation of handling more general colors, renames pdf_set_color as
    pdf_set_pure_color, and adds pdf_set_drawing_color. (devs.mak [1.13]:
    2000/04/11 18:31:32 lpd)

    Splits off creation and writing of color spaces, and writing color values,
    into a separate file. Adds support for (Function-based) Separation and
    DeviceN color spaces, general Pattern color spaces, and procedure-based
    Indexed color spaces. Adds some code to support Pattern colors, but stubs it
    out because it depends on changes in the image writing code that haven't
    been integrated yet. In fact, most of the new code isn't called yet, either.
    (devs.mak [1.14]: 2000/04/11 19:10:13 lpd)

    In pdfwrite, rewrites the image writing code to use Cos objects rather than
    direct printing, and splits off the creation of image dictionaries into a
    new file; adds support for tiling with uncolored Patterns; implements
    converting ImageType 4 images to their PDF 1.3 counterpart; starts to do the
    same for ImageType 3. This code is "in progress" and likely to have problems
    for a while. (devs.mak [1.15]: 2000/04/12 18:44:35 lpd)

    Adds user-contributed uniprint parameter files for the Canon BJC-8200,
    including an addition for the Red Hat printer data base.
    (unixinst.mak [1.8]: 2000/04/14 03:59:57 lpd)

    Adds code to write out CMaps, similar to the code for writing fonts, for
    eventual embedding in PDF output. (int.mak [1.18], lib.mak [1.12]:
    2000/04/14 07:17:24 lpd)

    Completes code for reading and writing CMaps. (int.mak [1.19],
    lib.mak [1.13]: 2000/04/16 03:05:29 lpd)

    Adds a user-contributed driver for the Epson Stylus (Color) Photo printers.
    (contrib.mak [1.6]: 2000/04/18 06:34:26 lpd)

    Converts the ps2epsi documentation to HTML. (unixinst.mak [1.10]: 2000/04/18
    17:59:13 lpd)

    Checks in the accumulated change log. (version.mak [1.13]: 2000/04/20
    07:24:22 lpd)

    Converts the bmp* and bmpa* devices to -dev2, to make them const.
    (devs.mak [1.18]: 2000/04/20 17:19:21 lpd)

    Removes the gp_ procedures for managing screen swapping between console and
    graphics, which haven't been used for a long time and are no longer useful.
    (dvx-tail.mak [1.2], lib.mak [1.14], openvms.mak [1.3], openvms.mmk [1.4],
    os2.mak [1.5], unix-aux.mak [1.2], watc.mak [1.3], watclib.mak [1.3],
    winlib.mak [1.2]: 2000/04/20 22:47:35 lpd)

    Removes all remaining direct references to stdin/out/err from the library,
    interpreter, and non-contributed drivers; moves the ersatz definitions of
    stdin/out/err to a new header file. (lib.mak [1.15], unix-gcc.mak [1.5]:
    2000/04/20 23:30:22 lpd)

    Adds compression for pdfwrite Patterns. (devs.mak [1.19]: 2000/04/24
    06:13:02 lpd)

    Adds a MD5Encode filter, which computes the 16-byte MD5 digest of the input.
    No output is produced until the filter is closed. (devs.mak [1.20],
    int.mak [1.21], lib.mak [1.16]: 2000/04/27 14:39:57 lpd)

    Adds a user-contributed driver for the H-P 970Cxi inkjet printer.
    (contrib.mak [1.8]: 2000/04/27 14:55:56 lpd)

    Factors the H-P monochrome laser and inkjet drivers into a generic driver
    and printer-specific clients. (devs.mak [1.21]: 2000/04/27 20:16:33 lpd)

    Adds a user-contributed driver for the Brother HL-1250 laser printer. This
    has a dual AFPL/GPL license, and a non-Aladdin copyright.
    (contrib.mak [1.9]: 2000/04/27 20:18:39 lpd)

    Once again, updates some dependency lists that had become inconsistent with
    the code. (contrib.mak [1.10], devs.mak [1.22], lib.mak [1.17]: 2000/04/27
    21:36:19 lpd)

    Yet again, updates an out-of-date dependency list. (contrib.mak [1.11]:
    2000/04/28 18:28:42 lpd)

    Changes the check for documentation files having the correct embedded date.
    (toolbin/pre [1.3]: 2000/04/28 18:29:14 lpd)

    Updates version numbers and dates for the 6.21 fileset. (version.mak [1.14]:
    2000/04/28 22:06:26 lpd)

    Utilities

    Fixes problems:
    	- The e-mail address for reporting problems was out of date.
    (lib/ps2epsi.ps [1.2]: 2000/04/10 02:27:21 lpd)
    	- If a font didn't have a FontName (which is the case for bitmap
    fonts produced by recent versions of dvips), ps2epsi caused an error.
    (lib/ps2epsi.ps [1.3]: 2000/04/11 16:32:51 lpd)
    	- Backs out contributed changes of 2000-03-05 because of bugs.
    (ansi2knr.c [1.3]: 2000/04/13 03:41:48 lpd)
    	- ps2epsi removed all ^M characters in the input, possibly
    corrupting binary data. (lib/ps2epsi [1.2]: 2000/04/27 01:44:04 lpd)

    Makes the ps2pdf scripts replace a .eps extension with .pdf, as they do with
    .ps. (lib/ps2pdfwr [1.2], lib/ps2pdfxx.bat [1.2]: 2000/04/07 19:28:14 lpd)

    Enhances pdf2ps to allow defaulting the output file name. (lib/pdf2ps [1.2]:
    2000/04/11 14:23:24 lpd)

    Makes the second argument of the pfbtopfa script optional, so 'pfbtopfa
    dir/x.pfb' is equivalent to 'pfbtopfa dir/x.pfb x.pfa'. (lib/pfbtopfa [1.2]:
    2000/04/12 17:41:41 lpd)

    Adds user-contributed uniprint parameter files for the Canon BJC-8200,
    including an addition for the Red Hat printer data base. (lib/bj8.rpd [1.1]:
    2000/04/14 03:59:57 lpd)

    Increases the VMThreshold when converting PostScript to PDF, to reduce
    garbage collection overhead. (lib/ps2pdfwr [1.3]: 2000/04/17 19:06:58 lpd)

    Moves the optimization prologue for ps2pdf from the command line to a
    procedure, to avoid shell length limits. (lib/ps2pdfwr [1.4],
    lib/ps2pdfxx.bat [1.3]: 2000/04/18 16:40:14 lpd)

    Removes the gp_ procedures for managing screen swapping between console and
    graphics, which haven't been used for a long time and are no longer useful.
    (bench.c [1.2], gp_dosfb.c [1.2], gp_iwatc.c [1.2], gp_nofb.c [1.2]:
    2000/04/20 22:47:35 lpd)

    Checks in a file overlooked in the elimination of the gp_ console
    procedures. (gp_os2.c [1.2]: 2000/04/20 23:27:21 lpd)

    Drivers

    Fixes problems:
    	- The pdfwrite driver sometimes compressed images in an Indexed
    color space with the DCTEncode filter, producing garbage. (gdevpsdi.c [1.4]:
    2000/04/12 19:25:56 lpd)
    	- Setting pdfwrite parameters for a DCTEncode filter could cause a
    crash (memory fault). (gdevpsdf.h [1.7], gdevpsdi.c [1.5], gdevpsdp.c [1.4],
    gdevpsdu.c [1.2]: 2000/04/13 01:53:07 lpd)
    	- Compressing with DCTEncode tried to add the compression filter
    twice. (gdevpsdi.c [1.6]: 2000/04/13 04:52:38 lpd)
    	- The PDF writer could get an ioerror when downsampling images whose
    size wasn't an exact multiple of the downsampling factor. (gdevpsdi.c [1.7],
    gdevpsds.c [1.2], gdevpsds.h [1.2]: 2000/04/13 16:44:59 lpd)
    	- Downsampled mask images could cause a memory access error.
    (gdevpsdi.c [1.9]: 2000/04/18 16:37:04 lpd)
    	- PDF Patterns weren't written correctly if the ProcessColorModel
    wasn't Device RGB. (gdevpsdu.c [1.3]: 2000/04/24 05:40:30 lpd)
    	- The [e]pswrite driver produced incorrect output for color images
    with multiple data sources. (gdevps.c [1.5]: 2000/04/25 19:35:07 lpd)

    Implements pdfwrite compression for mask images, using the same parameters
    as for monochrome images. (gdevpsdi.c [1.8]: 2000/04/13 18:40:23 lpd)

    Adds user-contributed uniprint parameter files for the Canon BJC-8200,
    including an addition for the Red Hat printer data base.
    (lib/bj8gc12f.upp [1.1], lib/bj8hg12f.upp [1.1], lib/bj8oh06n.upp [1.1],
    lib/bj8pa06n.upp [1.1], lib/bj8pp12f.upp [1.1], lib/bj8ts06n.upp [1.1]:
    2000/04/14 03:59:57 lpd)

    Adds a user-contributed driver for the Epson Stylus (Color) Photo printers.
    (gdevphex.c [1.1]: 2000/04/18 06:34:26 lpd)

    Converts the bmp* and bmpa* devices to -dev2, to make them const.
    (gdevbmp.c [1.2], gdevbmpa.c [1.2]: 2000/04/20 17:19:21 lpd)

    Documents the astounding fact that the Xt implementation actually writes
    into the XtResource tables. (gdevxres.c [1.2]: 2000/04/20 19:59:28 lpd)

    Removes all remaining direct references to stdin/out/err from the library,
    interpreter, and non-contributed drivers; moves the ersatz definitions of
    stdin/out/err to a new header file. (gdevxxf.c [1.3]: 2000/04/20 23:30:22
    lpd)

    When writing PDF output, reduces the size of compressed images in Indexed
    color spaces by not using a Predictor for them. (gdevpsdi.c [1.10]:
    2000/04/21 06:46:08 lpd)

    Adds an internal filter for converting images to Indexed form if possible.
    (gdevpsds.c [1.3], gdevpsds.h [1.3]: 2000/04/21 19:26:37 lpd)

    Cleans up code by replacing macros with procedures or variables.
    (gdevps.c [1.6]: 2000/04/25 20:35:46 lpd)

    Makes the [e]pswrite and pdfwrite drivers merge adjacent horizontal or
    vertical line segments going in the same direction. This makes a big
    difference for PostScript files produced by certain applications.
    (gdevps.c [1.7]: 2000/04/25 22:39:54 lpd)

    Adds a user-contributed driver for the H-P 970Cxi inkjet printer.
    (gdevdj9.c [1.1]: 2000/04/27 14:55:56 lpd)

    Factors the H-P monochrome laser and inkjet drivers into a generic driver
    and printer-specific clients. (gdevdjet.c [1.3], gdevdljm.c [1.1],
    gdevdljm.h [1.1]: 2000/04/27 20:16:33 lpd)

    Adds a user-contributed driver for the Brother HL-1250 laser printer. This
    has a dual AFPL/GPL license, and a non-Aladdin copyright. (gdevhl12.c [1.1]:
    2000/04/27 20:18:39 lpd)

    Once again, updates some dependency lists that had become inconsistent with
    the code. (gdevdj9.c [1.2]: 2000/04/27 21:36:19 lpd)

    Makes the printers in gdevdjet.c that support setting the number of copies
    use this feature when multiple copies are requested. (gdevdjet.c [1.4],
    gdevdljm.c [1.2], gdevdljm.h [1.2]: 2000/04/28 13:37:47 lpd)

    PDF writer

    Fixes problems:
    	- The Cos objects of resources not shared between pages weren't
    freed at the end of each page. (gdevpdf.c [1.9]: 2000/04/10 04:17:56 lpd)
    	- gdevpdfe.c was omitted from the check-in for the overhaul of
    pdfwrite font embedding. (gdevpdfe.c [1.1]: 2000/04/10 16:01:29 lpd)
    	- pdfwrite output could contain commands to set the line width to a
    negative value, which PostScript allows but PDF doesn't. (gdevpdfd.c [1.6]:
    2000/04/12 19:51:14 lpd)
    	- The changes for the new color handling code caused stroked
    graphics not to output the line width. (new bug since 6.20)
    (gdevpdfd.c [1.7]: 2000/04/13 03:47:21 lpd)
    	- Pattern resources were written with incorrectly scaled XStep and
    YStep, and without a Type entry. (gdevpdfc.c [1.3], gdevpdfi.c [1.10]:
    2000/04/13 04:12:33 lpd)
    	- The PDF writer could get an ioerror when downsampling images whose
    size wasn't an exact multiple of the downsampling factor.
    (gdevpdfi.c [1.11]: 2000/04/13 16:44:59 lpd)
    	- Bitmapped characters weren't written properly on the output file
    (new bug since 6.20). (gdevpdfg.h [1.4], gdevpdfi.c [1.12],
    gdevpdfj.c [1.2]: 2000/04/13 17:24:54 lpd)
    	- gxdcolor.h was required for gxpcolor.h, but wasn't included.
    (gdevpdfc.c [1.4]: 2000/04/18 17:42:55 lpd)
    	- A table of constant strings wasn't declared as const.
    (gdevpdfp.c [1.7]: 2000/04/20 17:37:31 lpd)
    	- When pdfwrite was producing PDF 1.3 output, the base 14 fonts were
    never embedded, rather than being handled like all other fonts.
    (gdevpdff.c [1.4]: 2000/04/20 23:49:40 lpd)
    	- Indexed color spaces used in in-line images were being written
    incorrectly. Also optimizes Indexed images by converting RGB palettes to
    Gray if all the entries are actually gray. (gdevpdfc.c [1.5]: 2000/04/21
    15:29:20 lpd)
    	- The recent optimization for using the ' command in PDF output lost
    track of the leading value between blocks of text, causing lines in later
    blocks to overprint each other. (gdevpdfu.c [1.9]: 2000/04/21 22:29:05 lpd)
    	- Backs out the change that allowed embedding of the base 14 fonts,
    because it produces invalid output. (gdevpdff.c [1.5]: 2000/04/22 00:13:11
    lpd)
    	- Colored Patterns requiring masking weren't written properly.
    (gdevpdfc.c [1.6]: 2000/04/24 00:09:37 lpd)
    	- Patterns were written upside-down. (gdevpdfc.c [1.7]: 2000/04/24
    01:11:36 lpd)
    	- PDF Patterns weren't written correctly if the ProcessColorModel
    wasn't Device RGB. (gdevpdf.c [1.15], gdevpdfc.c [1.8], gdevpdfg.h [1.5],
    gdevpdfi.c [1.13], gdevpdfx.h [1.15]: 2000/04/24 05:40:30 lpd)
    	- The color space for images wasn't always written in the correct
    form (an object reference for image XObjects, a resource name for in-line
    images). (gdevpdfi.c [1.14]: 2000/04/28 12:07:37 lpd)
    	- Patterns were sometimes written with a duplicate Type element.
    (gdevpdfc.c [1.10]: 2000/04/28 12:23:54 lpd)
    	- Patterns were sometimes written twice, with an empty definition
    the second time. (gdevpdfi.c [1.15]: 2000/04/28 12:24:42 lpd)

    Overhauls font embedding in the PDF writer: splits off the code into a new
    file (gdevpdfe.c), writes embedded Type 1 fonts as Type 1C (CFF Type 2), and
    adds a little bit of code for future support of Type 0 and CID-keyed fonts.
    (gdevpdff.c [1.3], gdevpdff.h [1.2], gdevpdft.c [1.6], gdevpdfw.c [1.3]:
    2000/04/10 07:48:37 lpd)

    Factors out code for writing functions and for adding filter-related entries
    to a stream dictionary; implements the DefaultRenderingIntent distiller
    parameter. (gdevpdf.c [1.10], gdevpdfu.c [1.6], gdevpdfx.h [1.8]: 2000/04/11
    16:06:57 lpd)

    Adds ExtGState resources. These should be written and freed at the end of
    each page, but they aren't yet. (gdevpdfx.h [1.9]: 2000/04/11 16:38:14 lpd)

    Implements additional distiller parameters: PreserveHalftoneInfo,
    PreserveOverprintSetting, TransferFunctionInfo (except for Apply vs.
    Remove), UCRandBGInfo. Splits off graphics state management into separate
    files. Implements the remaining graphics state parameters (halftone,
    transfer function, black generation, undercolor removal, halftone phase,
    smoothness, overprint, stroke adjustment) ****** EXCEPT FOR IMAGES ******.
    In anticipation of handling more general colors, renames pdf_set_color as
    pdf_set_pure_color, and adds pdf_set_drawing_color. (gdevpdf.c [1.11],
    gdevpdfd.c [1.4], gdevpdfg.c [1.1], gdevpdfg.h [1.1], gdevpdfi.c [1.8],
    gdevpdft.c [1.7], gdevpdfu.c [1.7], gdevpdfx.h [1.10]: 2000/04/11 18:31:32
    lpd)

    Splits off creation and writing of color spaces, and writing color values,
    into a separate file. Adds support for (Function-based) Separation and
    DeviceN color spaces, general Pattern color spaces, and procedure-based
    Indexed color spaces. Adds some code to support Pattern colors, but stubs it
    out because it depends on changes in the image writing code that haven't
    been integrated yet. In fact, most of the new code isn't called yet, either.
    (gdevpdf.c [1.12], gdevpdfc.c [1.1], gdevpdfd.c [1.5], gdevpdfg.c [1.2],
    gdevpdfg.h [1.2], gdevpdft.c [1.8], gdevpdfx.h [1.11]: 2000/04/11 19:10:13
    lpd)

    Integrates a couple of minor overlooked changes in the text-writing code.
    (gdevpdf.c [1.13], gdevpdft.c [1.9], gdevpdfx.h [1.12]: 2000/04/11 19:20:56
    lpd)

    In pdfwrite, rewrites the image writing code to use Cos objects rather than
    direct printing, and splits off the creation of image dictionaries into a
    new file; adds support for tiling with uncolored Patterns; implements
    converting ImageType 4 images to their PDF 1.3 counterpart; starts to do the
    same for ImageType 3. This code is "in progress" and likely to have problems
    for a while. (gdevpdf.c [1.14], gdevpdfc.c [1.2], gdevpdfg.c [1.3],
    gdevpdfg.h [1.3], gdevpdfi.c [1.9], gdevpdfj.c [1.1], gdevpdfx.h [1.13]:
    2000/04/12 18:44:35 lpd)

    Tweaks the PDF writer to use the ' command for positioning text when
    possible (small optimization only). (gdevpdfg.c [1.4], gdevpdft.c [1.10],
    gdevpdfu.c [1.8], gdevpdfx.h [1.14]: 2000/04/18 16:08:16 lpd)

    Reduces the startup time for displaying PDF files, by skipping the creation
    of pdfmarks for annotations and outlines when the output device doesn't
    process pdfmarks. (gdevpdfp.c [1.8]: 2000/04/21 16:58:28 lpd)

    Adds compression for pdfwrite Patterns. (gdevpdfc.c [1.9]: 2000/04/24
    06:13:02 lpd)

    Makes the [e]pswrite and pdfwrite drivers merge adjacent horizontal or
    vertical line segments going in the same direction. This makes a big
    difference for PostScript files produced by certain applications.
    (gdevpdf.c [1.16], gdevpdfd.c [1.8]: 2000/04/25 22:39:54 lpd)

    Updates the list of remaining pdfwrite tasks. (gdevpdfp.c [1.9]: 2000/04/27
    21:36:52 lpd)

    Interpreter (PDF)

    Fixes problems:
    	- Embedded subset CFF fonts in PDF files were defined using the name
    in the font data rather than the font name in the PDF resource object. (bug
    #102901) (lib/pdf_ops.ps [1.5]: 2000/04/11 05:33:13 lpd)
    	- When processing a PDF file, the font substitution heuristic based
    on the FontName sometimes overrode the Flags information in the
    FontDescriptor. (lib/pdf_font.ps [1.6]: 2000/04/20 06:36:02 lpd)
    	- PDF images with a bitmap Mask caused errors or produced incorrect
    output. (lib/pdf_draw.ps [1.10]: 2000/04/24 00:59:04 lpd)
    	- Masked images weren't drawn properly, because the two data sources
    could reference the same file. (lib/pdf_draw.ps [1.11]: 2000/04/24 05:39:45
    lpd)
    	- *Really* fixes the problem of data source aliasing for masked
    images. (lib/pdf_draw.ps [1.12]: 2000/04/24 05:53:43 lpd)
    	- If a font specified Subtype = /TrueType but the actual font used
    was not a TrueType font, any Encoding in the Font object should be ignored.
    (This is a hack required by the PDF specification.) (lib/pdf_font.ps [1.7]:
    2000/04/24 06:37:18 lpd)
    	- Colored annotation borders caused an error; 0-width borders were
    drawn even though they shouldn't be; Link and Stamp annotations weren't
    drawn at all. Also adds a new -dPrinted[=true/false] switch to choose
    whether to produce "screen" or "printer" output. (code from Artifex)
    (lib/pdf_draw.ps [1.13], lib/pdf_main.ps [1.7]: 2000/04/27 08:16:40 lpd)

    Makes undefined XObject resources for the Do operator produce a warning
    rather than an error, to parallel Acrobat Reader. (lib/pdf_draw.ps [1.9]:
    2000/04/16 07:48:23 lpd)

    Tweaks up the performance of the PDF interpreter loop slightly.
    (lib/pdf_base.ps [1.7]: 2000/04/18 05:45:49 lpd)

    Reduces the startup time for displaying PDF files, by skipping the creation
    of pdfmarks for annotations and outlines when the output device doesn't
    process pdfmarks. (lib/pdf_main.ps [1.6]: 2000/04/21 16:58:28 lpd)

    Interpreter

    Fixes problems:
    	- Fixes some signed/unsigned char * mismatches. (zfrsd.c [1.3]:
    2000/04/07 15:27:14 lpd)
    	- Automatic loading of fonts from resource files didn't work
    (usually caused an unmatchedmark or typecheck error).
    (lib/gs_fonts.ps [1.5], lib/gs_res.ps [1.9]: 2000/04/08 03:45:41 lpd)
    	- A -> should have been a . (only shows up on 64-bit systems).
    (zfunc4.c [1.3]: 2000/04/09 20:04:00 lpd)
    	- the most recent 'fixes' for loading font resources caused all
    built-in fonts to be returned as null. (lib/gs_res.ps [1.10]: 2000/04/09
    22:51:01 lpd)
    	- /Category defineresource didn't make the category definition
    dictionary read-only. (lib/gs_res.ps [1.11]: 2000/04/10 18:29:04 lpd)
    	- Attempting to build an invalid FunctionType 4 function could cause
    a memory access error. (zfunc4.c [1.4]: 2000/04/10 19:38:53 lpd)
    	- Embedded subset CFF fonts in PDF files were defined using the name
    in the font data rather than the font name in the PDF resource object. (bug
    #102901) (lib/gs_cff.ps [1.4]: 2000/04/11 05:33:13 lpd)
    	- CMaps with more than one code space range weren't converted to the
    internal form correctly; begincidchar and beginnotdefchar caused errors.
    (lib/gs_cmap.ps [1.3], zfcmap.c [1.6]: 2000/04/14 07:53:10 lpd)
    	- flushfile and closefile didn't properly flush streams whose final
    target was a procedure, and closefile didn't actually close them. (This is a
    very old bug.) (zfproc.c [1.2]: 2000/04/18 05:50:15 lpd)
    	- CIDFontType 0 CIDFonts in which some FDArray element had no Subrs
    caused an error. (lib/gs_cidfn.ps [1.14]: 2000/04/18 05:58:08 lpd)
    	- Attempting to set a PageSize with 4 elements actually set the
    PageSize (to the first 2 elements), rather than ignoring the attempt. (This
    is just a patch to prevent some PageMaker files from being thrown off by the
    4-element PageSizes in Input Attributes.) (lib/gs_setpd.ps [1.2]: 2000/04/19
    06:01:19 lpd)
    	- When choosing a substituted font, 'Serif' had priority over
    'Sans', so unknown fonts with 'SansSerif' in their name would have a serif
    font substituted. (lib/gs_fonts.ps [1.6]: 2000/04/19 13:48:48 lpd)
    	- The fix to make setpagedevice ignore 4-element PageSizes in
    InputAttributes was broken. (It's impossible that it could ever have worked,
    despite the fact that we tested it.) (lib/gs_setpd.ps [1.3]: 2000/04/20
    06:24:39 lpd)
    	- When processing a PDF file, the font substitution heuristic based
    on the FontName sometimes overrode the Flags information in the
    FontDescriptor. (lib/gs_fonts.ps [1.7]: 2000/04/20 06:36:02 lpd)
    	- Showing a string in a Type 1 font with a singular combined matrix
    (e.g., after 0 scalefont setfont) caused an error instead of doing nothing.
    (zchar1.c [1.3]: 2000/04/22 00:34:46 lpd)
    	- Images with multiple file DataSources where two or more of the
    files were the same caused a crash. (zimage.c [1.3]: 2000/04/24 00:07:41
    lpd)
    	- .reusablestreamdecode wasn't defined for use in LanguageLevel 2.
    (The ReusableStreamDecode filter itself was properly defined.)
    (lib/gs_frsd.ps [1.3]: 2000/04/24 00:45:38 lpd)
    	- Loading an unknown font gave a spurious "non-string font name"
    message; unknown fonts with names containing style strings like Bold or
    Italic caused an error. (bug introduced since 6.20) (lib/gs_fonts.ps [1.8]:
    2000/04/28 22:03:58 lpd)

    Adds a workaround for misnamed glyphs in some Microsoft TrueType font 'post'
    tables. (lib/gs_mgl_e.ps [1.2], lib/gs_ttf.ps [1.4]: 2000/04/08 01:53:16
    lpd)

    Completely redesigns the representation of CMaps, to reduce space
    requirements and make comparing them more reasonable, changing gs_cmap to
    gs_cmap_t and gx_code_map to gx_code_map_t. (****** NOTE ****** The
    PostScript code currently only handles a few well-behaved CMap structures.)
    (lib/gs_cmap.ps [1.2], zfcmap.c [1.4], zfont0.c [1.2]: 2000/04/08 03:54:38
    lpd)

    Updates version #s to 6.21. (We should have done this earlier.)
    (lib/gs_init.ps [1.7]: 2000/04/10 04:46:36 lpd)

    Makes Separation and DeviceN color spaces detect that their tint transform
    procedure is a Function, and call it rather than using its cached values.
    (zcsdevn.c [1.2], zcssepr.c [1.3]: 2000/04/10 19:39:44 lpd)

    Adds code to write out CMaps, similar to the code for writing fonts, for
    eventual embedding in PDF output. (zfcmap.c [1.5]: 2000/04/14 07:17:24 lpd)

    Completes code for reading and writing CMaps. (lib/gs_cmap.ps [1.4],
    zfcmap.c [1.7]: 2000/04/16 03:05:29 lpd)

    Works around a bug in the AdobePS5 Windows driver, which emits CMaps lacking
    the required CMapName entry. (lib/gs_cidfn.ps [1.15], lib/gs_cmap.ps [1.5]:
    2000/04/18 07:18:42 lpd)

    Moves the optimization prologue for ps2pdf from the command line to a
    procedure, to avoid shell length limits. (lib/gs_pdfwr.ps [1.3]: 2000/04/18
    16:40:14 lpd)

    Removes all remaining direct references to stdin/out/err from the library,
    interpreter, and non-contributed drivers; moves the ersatz definitions of
    stdin/out/err to a new header file. (imainarg.c [1.2]: 2000/04/20 23:30:22
    lpd)

    Speeds up Type 1 font loading slightly by removing a conversion from binary
    to hex and back again. (zmisc1.c [1.2]: 2000/04/22 16:03:18 lpd)

    Adds a MD5Encode filter, which computes the 16-byte MD5 digest of the input.
    No output is produced until the filter is closed. (zfmd5.c [1.1]: 2000/04/27
    14:39:57 lpd)

    Adds a sample file containing a wide variety of PDF annotations; updates
    documentation for this and some other overlooked files.
    (examples/annots.pdf [1.1]: 2000/04/28 10:51:02 lpd)

    Streams

    Fixes problems:
    	- FILE_IMPLEMENTATION=both was broken (by the introduction of
    sread_subfile). (sfxfd.c [1.3]: 2000/04/10 02:41:48 lpd)
    	- flushfile and closefile didn't properly flush streams whose final
    target was a procedure, and closefile didn't actually close them. (This is a
    very old bug.) (stream.c [1.6]: 2000/04/18 05:50:15 lpd)
    	- The PixelDifference filters (Predictor = 2) weren't implemented
    for Colors > 4 and BitsPerComponent != 8, and they dropped trailing bytes if
    the length of the data wasn't an exact multiple of the pixel size.
    (spdiff.c [1.2]: 2000/04/22 03:55:22 lpd)

    Enhances the ASCII85Encode filter to avoid %! at the beginning of a line of
    output, in addition to avoiding %% which it did already. (sa85x.h [1.2],
    sfilter2.c [1.2]: 2000/04/08 01:30:36 lpd)

    Removes all remaining direct references to stdin/out/err from the library,
    interpreter, and non-contributed drivers; moves the ersatz definitions of
    stdin/out/err to a new header file. (std.h [1.2]: 2000/04/20 23:30:22 lpd)

    Speeds up Type 1 font loading slightly by removing a conversion from binary
    to hex and back again. (seexec.c [1.2], sfilter.h [1.5]: 2000/04/22 16:03:18
    lpd)

    Adds a MD5Encode filter, which computes the 16-byte MD5 digest of the input.
    No output is produced until the filter is closed. (smd5.c [1.1],
    smd5.h [1.1]: 2000/04/27 14:39:57 lpd)

    Library

    Fixes problems:
    	- Fixes some signed/unsigned char * mismatches. (gdevpsf2.c [1.5]:
    2000/04/07 15:27:14 lpd)
    	- Writing a Type 2 CFF with multiply-encoded glyphs produced an
    incorrect Encoding. Also, when producing output for PDF 1.2 files, no longer
    emits certain opcodes that cause an (unjustified) error in Acrobat Reader 3
    for Linux. (gdevpsf.h [1.3], gdevpsf2.c [1.6]: 2000/04/10 07:42:31 lpd)
    	- gsmisc.c didn't compile in DEBUG mode on systems with a
    non-standard prototype for the sqrt function. (gsmisc.c [1.3]: 2000/04/10
    16:00:31 lpd)
    	- One picky compiler complained about (1L << 31). (gsmisc.c [1.4]:
    2000/04/10 17:21:41 lpd)
    	- putdeviceparams allowed a PageSize or .MediaSize value with the
    wrong number of elements to take effect. (gsdparam.c [1.2]: 2000/04/19
    05:59:05 lpd)
    	- The elimination of stdin/out/err also eliminated some #defines
    that are needed for error printout. (gsio.h [1.3]: 2000/04/21 06:39:17 lpd)
    	- The structure descriptor for ImageType 3 images was public rather
    than private. (gsiparm3.h [1.3], gximage3.c [1.2]: 2000/04/22 07:02:18 lpd)
    	- The "point matching" feature of TrueType composite glyphs wasn't
    implemented, causing some composite (accented) characters to have their
    accents misplaced. (gstype42.c [1.4]: 2000/04/25 07:22:50 lpd)

    Completely redesigns the representation of CMaps, to reduce space
    requirements and make comparing them more reasonable, changing gs_cmap to
    gs_cmap_t and gx_code_map to gx_code_map_t. (****** NOTE ****** The
    PostScript code currently only handles a few well-behaved CMap structures.)
    (gsfcmap.c [1.4], gsfcmap.h [1.2], gxfcmap.h [1.3], gxfont0.h [1.2]:
    2000/04/08 03:54:38 lpd)

    Adds Function-based tint_transform procedures for Separation and DeviceN
    color spaces. (gscdevn.c [1.3], gscdevn.h [1.2], gscsepr.c [1.3],
    gscsepr.h [1.2]: 2000/04/10 19:02:19 lpd)

    Adds code to write out CMaps, similar to the code for writing fonts, for
    eventual embedding in PDF output. (gdevpsf.h [1.4], gdevpsfm.c [1.1]:
    2000/04/14 07:17:24 lpd)

    Completes code for reading and writing CMaps. (gdevpsf.h [1.5],
    gdevpsfm.c [1.2], gsccode.h [1.3], gsfcid.c [1.3], gsfcmap.c [1.5],
    gxcid.h [1.2], gxfcmap.h [1.4]: 2000/04/16 03:05:29 lpd)

    Removes the gp_ procedures for managing screen swapping between console and
    graphics, which haven't been used for a long time and are no longer useful.
    (gp.h [1.3]: 2000/04/20 22:47:35 lpd)

    Removes all remaining direct references to stdin/out/err from the library,
    interpreter, and non-contributed drivers; moves the ersatz definitions of
    stdin/out/err to a new header file. (gsdevice.c [1.3], gsio.h [1.2],
    gsmisc.c [1.5], gxdevice.h [1.2]: 2000/04/20 23:30:22 lpd)

    Adds an essential new file overlooked in the removal of references to
    stdin/out/err. (gxstdio.h [1.1]: 2000/04/20 23:50:20 lpd)

    Makes the [e]pswrite and pdfwrite drivers merge adjacent horizontal or
    vertical line segments going in the same direction. This makes a big
    difference for PostScript files produced by certain applications.
    (gdevvec.c [1.2], gdevvec.h [1.2]: 2000/04/25 22:39:54 lpd)

    Adds template macros for printer devices that implement print_page_copies
    rather than print_page. (gdevprn.c [1.2], gdevprn.h [1.3]: 2000/04/28
    13:36:16 lpd)

    Version 6.20 (2000-04-06)

    This fileset includes the first steps towards bringing the pdfwrite driver
    closer to matching Acrobat Distiller 4.  Highlights:

     Reimplementation of CIDFontType 0 support in C rather than PostScript;

     Parsing (but not functional implementation) of nearly all the Acrobat
    Distiller 4 parameters;

     Implementation of AutoRotatePages and DCTEncode filtering in the PDF
    writer;

     A PDF linearizer ("optimizer").

    All problems registered on SourceForge numbered 103963 or lower are closed,
    except for the following: 101549, 101814, 101829, 101905, 101955, 102046,
    102047, 102132, 102146, 102735, 102901, 103016, 103528, 103963.

    Incompatible changes

    (Procedures)
    	- The default value of FPU_TYPE in all Windows and OS/2 makefiles
    is now 387 rather than 0.
    	- The process for reporting problems has changed significantly.
    (PDF writer)
    	- The Cos procedures no longer take the device as an argument,
    except for object-creating procedures, which now take the device rather
    than an allocator.
    	- The is_object member of Cos values is replaced by value_type.
    Clients must use COS_VALUE_IS_OBJECT() to test whether a value is an object
    reference.
    	- The Cos procedures that take C strings no longer copy the string.
    	- The argument of cos_write_object is no longer const.
    (Drivers)
    	- The default BufferSpace for printer drivers is now 4 Mb.
    	- Device halftone order implementations must now provide a new
    bit_index procedure.
    	- The image argument for psdf_setup_image_filters is changed from
    gs_image_t to gs_pixel_image_t.
    	- The font-related psdf_ procedures are renamed psf_.
    (Streams)
    	- The interface to the [T]BCP filters is now in a separate file,
    sbcp.h.
    (PDF interpreter)
    	- The internal beginpage procedure is renamed dictbeginpage, and
    now takes a dictionary argument.
    (Interpreter)
    	- The argument list for the internal build_gs_TrueType_font
    procedure has changed.
    	- The zcharstring_glyph_outline procedure is renamed
    zchar1_glyph_outline.
    	- The Instances dictionary of resources is renamed .Instances.
    (Library)
    	- ImageType 4 images now give an error if a MaskColor value is out
    of the range of possible sample values.
    	- The definition of gs_param_key_t, the key type returned by
    parameter list enumeration, is changed.
    	- Implementors of parameter lists must now call gs_param_list_init
    to initialize the common members.
    	- st_indexed_map is now private.  Clients allocating instances of
    this structure must now call alloc_indexed_map.
    	- Setting a transfer map as the identity mapping now requires
    calling gx_set_identity_transfer.
    	- gs_cid_system_info is renamed gs_cid_system_info_t.
    	- The get_outline procedure of a Type 42 or Type 11 (CIDFontType 0)
    font now returns 1 if the string was newly allocated and can be freed by the
    client.
    	- The procs member of gs_type1_data is now an in-line structure
    rather than a pointer to a const structure.

    Documentation

    Fixes problems:
    	- If log2_transfer_map_size > 8, identity transfer functions
    returned garbage. The fix requires that if a client wants to set a transfer
    function to the identity mapping, it must call gx_set_identity_transfer
    rather than simply setting the procedure to gs_identity_transfer.
    (doc/News.htm [1.13]: 2000/03/19 17:14:47 lpd)
    	- In PDF files, the page CropBox was not being used to clip the
    output. (doc/News.htm [1.18]: 2000/03/21 23:08:32 lpd)
    	- Fixes several problems in resourceforall and resource loading: the
    operands of resourceforall were restored even in the case of an error in the
    client's procedure; the name Instances had special meaning for some Adobe
    code; resourceforall caused an invalidaccess error if an operand was in
    local VM but the current VM was global; loading a resource from a file could
    cause a typecheck error if the file left values on the operand stack.
    (doc/News.htm [1.25]: 2000/04/04 22:26:02 lpd)
    	- The location of the lists of supported and unsupported drivers was
    incorrect. (doc/Bug-info.htm [1.2]: 2000/04/07 03:01:52 lpd)

    Undoes an accidental RCS ID substitution in what was supposed to be literal
    text. (doc/Htmstyle.htm [1.2]: 2000/03/18 22:29:03 lpd)

    Increments the version number to 6.20, in anticipation of the next release.
    (We do this at the beginning of the development for a release, not the end.)
    (doc/History6.htm [1.4], doc/News.htm [1.6]: 2000/03/19 00:27:22 lpd)

    Splits out the [T]BCP filter interface into a separate file.
    (doc/News.htm [1.7]: 2000/03/19 02:40:18 lpd)

    Documents the fact that ImageType 4 images now cause an error for
    out-of-range MaskColor values. (doc/News.htm [1.8]: 2000/03/19 04:32:09 lpd)

    Updates the change log with recent changes. (doc/Changes.htm [1.4]:
    2000/03/19 05:39:58 lpd)

    Adds a new document listing projects with which we are seeking help. Also
    makes the description of Changes.htm and News.htm more accurate.
    (doc/New-user.htm [1.2], doc/Projects.htm [1.1], doc/Readme.htm [1.3]:
    2000/03/19 06:07:15 lpd)

    Changes the default value of BufferSpace to 4 Mb. In desktop applications,
    this is a reasonable value that can substantially improve performance
    (especially for color printers); embedded applications will want to set
    BufferSpace themselves in any case. (doc/News.htm [1.9]: 2000/03/19 06:51:13
    lpd)

    Changes the key type returned by parameter list enumeration to include a
    persistence flag, makes C parameter lists support non-persistent keys, and
    upgrades GC descriptors so that parameter lists can be used non-transiently;
    updates implementors of parameter lists to call gs_param_list_init to
    initialize the common members, which is now required. (doc/News.htm [1.10]:
    2000/03/19 15:16:11 lpd)

    Documents the fact that drivers that device halftone order implementations
    must now provide the new bit_index procedure. (This should have been
    documented when bit_index was introduced!) (doc/News.htm [1.11]: 2000/03/19
    15:47:47 lpd)

    Makes st_indexed_map private. Clients must now use the constructor procedure
    alloc_indexed_map rather than allocating instances directly.
    (doc/News.htm [1.12]: 2000/03/19 16:37:28 lpd)

    Update the date and change log for the latest batches of checked-in changes.
    (doc/Changes.htm [1.5]: 2000/03/19 17:29:57 lpd)

    Adds a PDF linearizer ("optimizer"). This is a separate utility (not
    integrated with the pdfwrite driver), written in PostScript.
    (doc/Psfiles.htm [1.2]: 2000/03/20 04:31:22 lpd)

    Adds parsing for the remaining Acrobat Distiller 4 parameters. Implements
    the LockDistillerParams, xxxDownsampleThreshold, xxxImageDict, and
    xxxACSImageDict distiller parameters. Implements DCTEncode as an
    xxxImageFilter option (it used to cause a crash). Makes the
    AutoFilterxxxImages distiller parameters select JPEG encoding (with ACSDict)
    if the image has 8 bits per component and is not Indexed, and LZW/Flate
    otherwise: this still isn't right, but it's closer. Implementation changes:
    Changes the implementation of distiller parameter dictionaries from stream
    states to parameter lists; changes the test for masks in
    psdf_setup_image_filters, and changes the image argument from gs_image_t to
    gs_pixel_image_t. (doc/News.htm [1.14]: 2000/03/20 05:40:04 lpd)

    Moves font-writing support into a new module (gdevpsf*), changing the source
    file names. Adds the ability to write CFF fonts, with either Type 1 or Type
    2 CharStrings; unfortunately, Acrobat Reader appears not to accept CFF fonts
    with Type 1 CharStrings. Adds the ability to convert Type 1 CharStrings to
    Type 2, including optimizing sequences of Type 1 operators into a single
    Type 2 operator. Implements writing CIDFontType 0 CFF fonts (CIDFonts) [NOT
    TESTED]. Starts (just barely) to remove more unneeded information from
    embedded TrueType fonts. (doc/News.htm [1.15]: 2000/03/20 07:02:12 lpd)

    Updates the consolidated change log with today's changes.
    (doc/Changes.htm [1.6]: 2000/03/20 07:18:38 lpd)

    Starts to move support for CIDFontType 0 and 2 into C code, needed by the
    PDF writer for handling CID-keyed fonts. Implements GlyphDirectory for
    CIDFonts. Makes GDBytes and CIDMapOffset optional for CIDFontType 0 fonts
    that have a GlyphDirectory (not documented in the PLRM, but clearly
    correct). Implements Adobe 3011 features: integer and dictionary CIDMaps,
    and the MetricsCount entry, in CIDFontType 2 fonts (but only in the C code,
    which isn't hooked in yet, not in the PostScript code in gs_cidfn.ps.)
    (doc/News.htm [1.16]: 2000/03/20 19:53:06 lpd)

    Notes that the argument list for the internal build_gs_TrueType_font
    procedure has changed, as part of the CIDFont migration to C code.
    (doc/News.htm [1.17]: 2000/03/20 20:04:20 lpd)

    Adds invocation scripts and documentation for the PDF "optimizer".
    (man/pdfopt.1 [1.1]: 2000/03/21 17:01:33 lpd)

    Updates information about reporting problems when using Ghostview or GSview.
    (doc/Bug-form.htm [1.3], doc/New-user.htm [1.3]: 2000/03/22 22:13:49 lpd)

    Checks in the latest consolidated change log. (doc/Changes.htm [1.7]:
    2000/03/24 05:04:55 lpd)

    Substantially enhances the Cos object machinery. Interface: Adds a few more
    procedures, including a procedure to create a stream that writes directly
    into a Cos stream object, procedures for putting more kinds of values into
    arrays and dictionaries, and a param_list interface. Changes Cos objects to
    store a reference to the PDF device, and removes the device argument from
    all Cos procedures other than object creation. Replaces the Boolean
    is_object member of Cos values by a value_type enum: clients must now use
    COS_VALUE_IS_OBJECT() to test whether a value is an object reference. To
    reduce allocator overhead, makes the Cos procedures that take C strings no
    longer copy the string. Records whether each Cos object has been written
    into the output, so that in the future (but not in this batch of changes)
    resource definitions can be copied at the end of each page. Implementation:
    Moves more of the implementation of Cos objects to the .c file.
    (doc/News.htm [1.19]: 2000/03/24 06:12:52 lpd)

    Adds parsing for the remaining Acrobat Distiller 4 parameters, although most
    of them don't have any effect yet; brings documentation up to date.
    (doc/Ps2pdf.htm [1.3]: 2000/03/28 07:36:58 lpd)

    Implements LockDistillerParams; completes the StartPage/EndPage fix checked
    in just before. (doc/Ps2pdf.htm [1.4]: 2000/03/28 07:52:06 lpd)

    Changes the default value of FPU_TYPE in all Windows and OS/2 makefiles from
    0 to 387, since all current desktop CPUs include floating point hardware.
    (doc/News.htm [1.20]: 2000/03/28 17:03:48 lpd)

    Changes the get_outline / glyph_data procedure for getting encoded font
    outline data to return an indication of whether the outline data were just
    allocated and can be freed by the client. (This is a possibly
    non-backward-compatible change.) (doc/News.htm [1.21]: 2000/03/28 18:47:02
    lpd)

    Adds a note about bogus "ANSI aliasing" warnings from the DEC C compiler.
    (doc/Make.htm [1.8]: 2000/03/29 19:29:08 lpd)

    Changes the procs structure of gs_type1_data to an in-line structure rather
    than a pointer to a const structure. (Needed for moving CIDFontType 0
    support into C.) (doc/News.htm [1.22]: 2000/03/29 22:10:31 lpd)

    Updates the change log with recent changes. (doc/Changes.htm [1.8]:
    2000/03/30 07:59:39 lpd)

    Creates a real list of projects on which help would be appreciated.
    (doc/Projects.htm [1.2]: 2000/04/01 00:43:11 lpd)

    Finishes implementing the ability to write CIDFontType 0 CFFs. This involved
    a surprising number of changes in other font-related files.
    (doc/News.htm [1.23]: 2000/04/02 07:38:46 lpd)

    Updates the documentation on preparing releases to reflect the addition of
    the toolbin directory. (doc/Release.htm [1.7]: 2000/04/02 18:56:58 lpd)

    Implements the AutoRotatePages distiller parameter. (doc/Ps2pdf.htm [1.5]:
    2000/04/03 02:54:41 lpd)

    Updates the problem reporting procedure to use SourceForge; separates the
    description of the procedure from the reporting form.
    (doc/Bug-form.htm [1.4], doc/Bug-info.htm [1.1], doc/New-user.htm [1.4],
    doc/News.htm [1.24], doc/Readme.htm [1.4]: 2000/04/04 04:14:02 lpd)

    Updates release dates and version numbers. (doc/Bug-form.htm [1.5],
    doc/Bug-info.htm [1.3], doc/Htmstyle.htm [1.3], doc/Make.htm [1.9],
    doc/New-user.htm [1.5], doc/Projects.htm [1.3], doc/Ps2pdf.htm [1.6],
    doc/Psfiles.htm [1.3], doc/Readme.htm [1.5], man/ps2pdf.1 [1.4],
    man/ps2ps.1 [1.4]: 2000/04/07 05:21:45 lpd)

    Removes redundant material, and the www.aladdin.com distribution point, from
    the release procedure documentation. (doc/Release.htm [1.8]: 2000/04/07
    05:24:29 lpd)

    Procedures

    Fixes problems:
    	- pdfread.dev incorrectly depended on dpsnext_. (int.mak [1.4]:
    2000/03/19 02:00:09 lpd)
    	- The referenced libpng version hadn't been updated to 1.0.5.
    (openvms.mmk [1.3]: 2000/03/20 16:38:46 lpd)
    	- The MSVC++ 6 compiler no longer recognizes the /FPi87 switch.
    (msvccmd.mak [1.2]: 2000/03/31 05:06:53 lpd)
    	- MSVC versions before 5, not before 6, recognize /FPi87.
    (msvccmd.mak [1.3]: 2000/03/31 05:50:33 lpd)
    	- Removes some occurrences of $,I,d,: that shouldn't be substituted.
    (toolbin/pre [1.2]: 2000/04/07 05:20:35 lpd)

    Increments the version number to 6.20, in anticipation of the next release.
    (We do this at the beginning of the development for a release, not the end.)
    (version.mak [1.6]: 2000/03/19 00:27:22 lpd)

    Adds a pseudo-encoding for the CFF StandardStrings that represent
    characters. (devs.mak [1.3], int.mak [1.3], unixinst.mak [1.5]: 2000/03/19
    00:38:50 lpd)

    Updates makefiles with dependencies for recent changes. (int.mak [1.5],
    lib.mak [1.3]: 2000/03/19 05:37:38 lpd)

    Adds dependencies for the new implementation of FunctionType 4 functions.
    (int.mak [1.6]: 2000/03/19 07:03:53 lpd)

    Splits off "vanilla" Functions into separate files, in anticipation of
    removing them (they were only used to implement PostScript Calculator
    Functions). (lib.mak [1.4]: 2000/03/19 07:33:08 lpd)

    Update the date and change log for the latest batches of checked-in changes.
    (version.mak [1.7]: 2000/03/19 17:29:57 lpd)

    Moves font-writing support into a new module (gdevpsf*), changing the source
    file names. Adds the ability to write CFF fonts, with either Type 1 or Type
    2 CharStrings; unfortunately, Acrobat Reader appears not to accept CFF fonts
    with Type 1 CharStrings. Adds the ability to convert Type 1 CharStrings to
    Type 2, including optimizing sequences of Type 1 operators into a single
    Type 2 operator. Implements writing CIDFontType 0 CFF fonts (CIDFonts) [NOT
    TESTED]. Starts (just barely) to remove more unneeded information from
    embedded TrueType fonts. (devs.mak [1.4], lib.mak [1.5]: 2000/03/20 07:02:12
    lpd)

    Updates dependencies to reflect today's batches of checked-in changes.
    (devs.mak [1.5], int.mak [1.7], lib.mak [1.6]: 2000/03/20 07:16:35 lpd)

    Updates the makefile for the renaming of gdevpsdf.c => gdevpsdu.c.
    (devs.mak [1.6]: 2000/03/20 19:30:35 lpd)

    Starts to move support for CIDFontType 0 and 2 into C code, needed by the
    PDF writer for handling CID-keyed fonts. Implements GlyphDirectory for
    CIDFonts. Makes GDBytes and CIDMapOffset optional for CIDFontType 0 fonts
    that have a GlyphDirectory (not documented in the PLRM, but clearly
    correct). Implements Adobe 3011 features: integer and dictionary CIDMaps,
    and the MetricsCount entry, in CIDFontType 2 fonts (but only in the C code,
    which isn't hooked in yet, not in the PostScript code in gs_cidfn.ps.)
    (int.mak [1.8], lib.mak [1.7]: 2000/03/20 19:53:06 lpd)

    Extends the C support for CIDFontType 0 fonts to include those with FontType
    2 subfonts in the FDArray (an Adobe 3011 addition, specifically for CFF
    fonts). (int.mak [1.9]: 2000/03/21 07:43:42 lpd)

    Adds invocation scripts and documentation for the PDF "optimizer".
    (unixinst.mak [1.6]: 2000/03/21 17:01:33 lpd)

    Splits off the ReusableStreamDecode filter as a separate module, since
    CIDFontType 0 fonts will use it even in LanguageLevels below 3.
    (int.mak [1.10]: 2000/03/21 21:34:57 lpd)

    Makes file streams remember the file name, needed for efficiently
    implementing reusable streams. (int.mak [1.11]: 2000/03/23 02:13:40 lpd)

    Checks in the latest consolidated change log. (version.mak [1.8]: 2000/03/24
    05:04:55 lpd)

    Changes the implementation of incrementally loaded CIDFontType 0 fonts to
    use a ReusableStreamDecode filter, in anticipation of moving the BuildGlyph
    procedure for these fonts from PostScript to C. (int.mak [1.12],
    version.mak [1.9]: 2000/03/27 16:36:24 lpd)

    Changes the default value of FPU_TYPE in all Windows and OS/2 makefiles from
    0 to 387, since all current desktop CPUs include floating point hardware.
    (msvc32.mak [1.3], msvclib.mak [1.3], os2.mak [1.4], watcw32.mak [1.3]:
    2000/03/28 17:03:48 lpd)

    Updates the change log with recent changes. (version.mak [1.10]: 2000/03/30
    07:59:39 lpd)

    Cleans up some dependencies missed at the last checkin. (devs.mak [1.7],
    int.mak [1.13]: 2000/03/31 05:03:30 lpd)

    Finishes implementing the ability to write CIDFontType 0 CFFs. This involved
    a surprising number of changes in other font-related files. (int.mak [1.14]:
    2000/04/02 07:38:46 lpd)

    Adds a variety of tools used to build and distribute Ghostscript releases.
    The only documentation is comments in the files themselves, and there isn't
    much of it. All aspects of these tools are subject to change without notice.
    (toolbin/3way.tcl [1.1], toolbin/cvs2hist.py [1.1],
    toolbin/errlist.tcl [1.1], toolbin/gsmake.tcl [1.1],
    toolbin/headers.tcl [1.1], toolbin/leaks.tcl [1.1],
    toolbin/makeset.tcl [1.1], toolbin/package.tcl [1.1], toolbin/pre [1.1],
    toolbin/pre.chk [1.1], toolbin/precheck.tcl [1.1], toolbin/smoke.ps [1.1],
    toolbin/suite.tcl [1.1], toolbin/tmake.tcl [1.1]: 2000/04/02 18:44:27 lpd)

    Moves gsindent from src to toolbin. (toolbin/gsindent [1.1]: 2000/04/02
    18:56:25 lpd)

    Adds an #include required by the Watcom compiler. (devs.mak [1.8]:
    2000/04/05 19:51:54 lpd)

    Adds a missing dependency. (lib.mak [1.8]: 2000/04/07 03:00:56 lpd)

    Updates a few dependencies for the release. (int.mak [1.15]: 2000/04/07
    05:23:12 lpd)

    Updates the build date for the release. (version.mak [1.11]: 2000/04/07
    05:25:18 lpd)

    Adds .cvsignore files, to prevent bogus warnings on cvs update.
    (.cvsignore [1.1], src/.cvsignore [1.1]: 2000/04/05 19:46:04 lpd)

    Utilities

    Fixes problems:
    	- A couple of places in the Windows code didn't correctly handle
    Ghostscript version 6.50, 2 December 2000
    21:45:03 lpd)
    	- Replaces a final exit() with a return, to avoid a compiler
    warning. (genconf.c [1.2]: 2000/04/05 19:53:27 lpd)

    Makes geninit remove whitespace adjacent to hex and base-85 string literals.
    (geninit.c [1.2]: 2000/03/18 22:51:24 lpd)

    Adds a PDF linearizer ("optimizer"). This is a separate utility (not
    integrated with the pdfwrite driver), written in PostScript.
    (lib/pdfopt.ps [1.1], lib/pdfwrite.ps [1.1]: 2000/03/20 04:31:22 lpd)

    Replaces the O(N^2) sorting algorithm for printing unencoded characters with
    a O(N log N) algorithm, which makes printing Unicode and Chinese/Japanese
    fonts practical. (lib/prfont.ps [1.2]: 2000/03/21 06:39:49 lpd)

    Adds invocation scripts and documentation for the PDF "optimizer".
    (lib/pdfopt [1.1], lib/pdfopt.bat [1.1], lib/pdfopt.ps [1.2]: 2000/03/21
    17:01:33 lpd)

    Splits off the ReusableStreamDecode filter as a separate module, since
    CIDFontType 0 fonts will use it even in LanguageLevels below 3.
    (zfreuse.c [1.2]: 2000/03/21 21:34:57 lpd)

    Adds a variety of tools used to build and distribute Ghostscript releases.
    The only documentation is comments in the files themselves, and there isn't
    much of it. All aspects of these tools are subject to change without notice.
    (gsindent [1.2]: 2000/04/02 18:44:27 lpd)

    Drivers

    Fixes problems:
    	- The color_info member of the Windows and OS/2 printer devices (and
    other devices using PC-style palettes) wasn't initialized properly, causing
    improper behavior. (gdevos2p.c [1.2], gdevpccm.h [1.2], gdevwpr2.c [1.3]:
    2000/03/20 21:05:11 lpd)
    	- Fixes a bug in the mswinpr2 driver in the handling of
    BitsPerPixel. (gdevwpr2.c [1.4]: 2000/03/22 17:08:33 lpd)
    	- In PCL XL output (pxl* drivers), if a PostScript image didn't
    provide enough source data, the remainder of the output image was
    erroneously filled with pixel value 0 (typically black or the foreground
    color). (gdevpx.c [1.2]: 2000/03/22 20:55:21 lpd)
    	- In the output of the pswrite driver (pdf2ps, ps2ps), the showpage
    for each page occurred before, not after, the restore that ended the page
    contents. This contradicted Adobe's documentation, and made utilities like
    N-up printing not work properly. (gdevps.c [1.4]: 2000/03/28 00:52:46 lpd)
    	- The PCL XL 2.0 value for sRGB color space was wrong, and the
    attribute for writing mode was missing. (gdevpxat.h [1.2], gdevpxen.h [1.2]:
    2000/03/29 18:19:44 lpd)
    	- When printing on monochrome LaserJet/DeskJet printers, the driver
    didn't set the number of copies to 1; on the LJ 4si, this sometimes caused
    double printing. (gdevdjet.c [1.2]: 2000/04/03 14:36:12 lpd)
    	- Updates clients for the change in the last argument of
    cff_string_index from uint * to int *. (gdevpsf2.c [1.4]: 2000/04/05
    19:55:29 lpd)

    Adds parsing for the remaining Acrobat Distiller 4 parameters. Implements
    the LockDistillerParams, xxxDownsampleThreshold, xxxImageDict, and
    xxxACSImageDict distiller parameters. Implements DCTEncode as an
    xxxImageFilter option (it used to cause a crash). Makes the
    AutoFilterxxxImages distiller parameters select JPEG encoding (with ACSDict)
    if the image has 8 bits per component and is not Indexed, and LZW/Flate
    otherwise: this still isn't right, but it's closer. Implementation changes:
    Changes the implementation of distiller parameter dictionaries from stream
    states to parameter lists; changes the test for masks in
    psdf_setup_image_filters, and changes the image argument from gs_image_t to
    gs_pixel_image_t. (gdevpsdf.h [1.4], gdevpsdi.c [1.3], gdevpsdp.c [1.3]:
    2000/03/20 05:40:04 lpd)

    Moves font-writing support into a new module (gdevpsf*), changing the source
    file names. Adds the ability to write CFF fonts, with either Type 1 or Type
    2 CharStrings; unfortunately, Acrobat Reader appears not to accept CFF fonts
    with Type 1 CharStrings. Adds the ability to convert Type 1 CharStrings to
    Type 2, including optimizing sequences of Type 1 operators into a single
    Type 2 operator. Implements writing CIDFontType 0 CFF fonts (CIDFonts) [NOT
    TESTED]. Starts (just barely) to remove more unneeded information from
    embedded TrueType fonts. (gdevpsd1.c [1.2], gdevpsdf.c [1.3],
    gdevpsdf.h [1.5], gdevpsdt.c [1.2], gdevpsf.h [1.1], gdevpsf1.c [1.1],
    gdevpsf2.c [1.1], gdevpsft.c [1.1], gdevpsfu.c [1.1], gdevpsfx.c [1.1]:
    2000/03/20 07:02:12 lpd)

    Renames an inappropriately named file. (gdevpsdf.c [1.4], gdevpsdf.h [1.6],
    gdevpsdu.c [1.1]: 2000/03/20 19:03:43 lpd)

    Extends the C support for CIDFontType 0 fonts to include those with FontType
    2 subfonts in the FDArray (an Adobe 3011 addition, specifically for CFF
    fonts). (gdevpsf.h [1.2]: 2000/03/21 07:43:42 lpd)

    Changes the procs structure of gs_type1_data to an in-line structure rather
    than a pointer to a const structure. (Needed for moving CIDFontType 0
    support into C.) (gdevpsf1.c [1.2], gdevpsf2.c [1.2], gdevpsfx.c [1.2]:
    2000/03/29 22:10:31 lpd)

    Finishes implementing the ability to write CIDFontType 0 CFFs. This involved
    a surprising number of changes in other font-related files.
    (gdevpsf2.c [1.3], gdevpsfu.c [1.2]: 2000/04/02 07:38:45 lpd)

    Slightly simplifies the output of the psmono and psgray drivers.
    (gdevpsim.c [1.2]: 2000/04/02 19:57:37 lpd)

    Adds an #include required by the Watcom compiler. (gdevpsf1.c [1.3]:
    2000/04/05 19:51:54 lpd)

    PDF writer

    Fixes problems:
    	- The pointer enumeration procedure for pdf_image_enum was wrong,
    possibly producing a mangled pointer and a memory access error if a garbage
    collection occured while writing an image in a PDF file. (gdevpdfi.c [1.5]:
    2000/03/20 05:54:13 lpd)
    	- The computation for testing whether a tiled pattern could be
    represented in line, and whether it exceeded Acrobat Reader's size limit,
    was wrong, causing some patterns not to be represented as Patterns.
    (gdevpdfi.c [1.6]: 2000/03/20 05:58:15 lpd)
    	- When ProcessColorModel=/DeviceCMYK, if the first object on a page
    or after changing the clipping path was white, the PDF writer would write it
    as black. (gdevpdfu.c [1.3]: 2000/03/21 18:36:36 lpd)
    	- If a page ended with an incomplete outline tree, an invalid memory
    access occurred. (gdevpdf.c [1.3], gdevpdfm.c [1.2]: 2000/03/24 05:09:56
    lpd)
    	- The SP pdfmark didn't check that its argument was a graphics
    stream. (gdevpdfm.c [1.4]: 2000/03/24 06:18:39 lpd)
    	- The name of the EndPage Distiller parameter collided with the
    EndPage page device parameter. (gdevpdfp.c [1.4]: 2000/03/28 07:45:25 lpd)
    	- If two embedded fonts had the same base font, the PDF file could
    wind up with an invalid entry in the xref table. (gdevpdft.c [1.4]:
    2000/04/01 01:18:32 lpd)

    Adds parsing for the remaining Acrobat Distiller 4 parameters. Implements
    the LockDistillerParams, xxxDownsampleThreshold, xxxImageDict, and
    xxxACSImageDict distiller parameters. Implements DCTEncode as an
    xxxImageFilter option (it used to cause a crash). Makes the
    AutoFilterxxxImages distiller parameters select JPEG encoding (with ACSDict)
    if the image has 8 bits per component and is not Indexed, and LZW/Flate
    otherwise: this still isn't right, but it's closer. Implementation changes:
    Changes the implementation of distiller parameter dictionaries from stream
    states to parameter lists; changes the test for masks in
    psdf_setup_image_filters, and changes the image argument from gs_image_t to
    gs_pixel_image_t. (gdevpdfi.c [1.4]: 2000/03/20 05:40:04 lpd)

    Moves font-writing support into a new module (gdevpsf*), changing the source
    file names. Adds the ability to write CFF fonts, with either Type 1 or Type
    2 CharStrings; unfortunately, Acrobat Reader appears not to accept CFF fonts
    with Type 1 CharStrings. Adds the ability to convert Type 1 CharStrings to
    Type 2, including optimizing sequences of Type 1 operators into a single
    Type 2 operator. Implements writing CIDFontType 0 CFF fonts (CIDFonts) [NOT
    TESTED]. Starts (just barely) to remove more unneeded information from
    embedded TrueType fonts. (gdevpdff.c [1.2], gdevpdfw.c [1.2]: 2000/03/20
    07:02:12 lpd)

    Substantially enhances the Cos object machinery. Interface: Adds a few more
    procedures, including a procedure to create a stream that writes directly
    into a Cos stream object, procedures for putting more kinds of values into
    arrays and dictionaries, and a param_list interface. Changes Cos objects to
    store a reference to the PDF device, and removes the device argument from
    all Cos procedures other than object creation. Replaces the Boolean
    is_object member of Cos values by a value_type enum: clients must now use
    COS_VALUE_IS_OBJECT() to test whether a value is an object reference. To
    reduce allocator overhead, makes the Cos procedures that take C strings no
    longer copy the string. Records whether each Cos object has been written
    into the output, so that in the future (but not in this batch of changes)
    resource definitions can be copied at the end of each page. Implementation:
    Moves more of the implementation of Cos objects to the .c file.
    (gdevpdf.c [1.4], gdevpdfi.c [1.7], gdevpdfm.c [1.3], gdevpdfo.c [1.2],
    gdevpdfo.h [1.2], gdevpdfr.c [1.2], gdevpdfu.c [1.4], gdevpdfx.h [1.3]:
    2000/03/24 06:12:52 lpd)

    Changes a few initializations to suppress warnings from one picky compiler
    that doesn't like ptr = buf - 1 where buf is an array. (gdevpdfr.c [1.3]:
    2000/03/28 02:01:34 lpd)

    Adds parsing for the remaining Acrobat Distiller 4 parameters, although most
    of them don't have any effect yet; brings documentation up to date.
    (gdevpdf.c [1.5], gdevpdfp.c [1.3], gdevpdfx.h [1.4]: 2000/03/28 07:36:58
    lpd)

    Implements LockDistillerParams; completes the StartPage/EndPage fix checked
    in just before. (gdevpdf.c [1.6], gdevpdfp.c [1.5], gdevpdfx.h [1.5]:
    2000/03/28 07:52:06 lpd)

    Changes the initial values of the "job control" parameters to match Acrobat
    Distiller 4. (gdevpdf.c [1.7], gdevpdfp.c [1.6], gdevpdfx.h [1.6]:
    2000/03/28 07:57:14 lpd)

    Implements the AutoRotatePages distiller parameter. (gdevpdf.c [1.8],
    gdevpdft.c [1.5], gdevpdfu.c [1.5], gdevpdfx.h [1.7]: 2000/04/03 02:54:41
    lpd)

    Interpreter (PDF)

    Fixes problems:
    	- Reading embedded compressed CIDFonts wasn't implemented.
    (lib/pdf_font.ps [1.3]: 2000/03/19 01:28:59 lpd)
    	- PDF images with DeviceN color spaces caused an error.
    (lib/pdf_draw.ps [1.2]: 2000/03/19 01:44:53 lpd)
    	- PDF images with a Mask ignored the mask. (lib/pdf_draw.ps [1.3]:
    2000/03/19 01:46:27 lpd)
    	- the PDF interpreter hadn't been updated for the move to
    library-based FunctionType 4 Functions, and still tried to bind the names
    true and false to the no longer existing operators .true and .false.
    (lib/pdf_draw.ps [1.5]: 2000/03/19 07:37:03 lpd)
    	- FunctionType 2 and 3 functions didn't work.
    (lib/pdf_draw.ps [1.6]: 2000/03/19 15:23:10 lpd)
    	- In PDF files, the page CropBox was not being used to clip the
    output. (lib/pdf_main.ps [1.4], lib/pdf_ops.ps [1.3]: 2000/03/21 23:08:32
    lpd)
    	- The "fix" for FunctionTypes 2 and 3 in PDF files had made things
    worse, because the code didn't distinguish between resolving to a PostScript
    function (for shadings) and resolving to a PostScript procedure (for
    halftones, BG/UCR, alternate color space mapping, etc.)
    (lib/pdf_draw.ps [1.7]: 2000/03/23 18:31:46 lpd)
    	- Text with a Pattern color scaled the pattern according to the text
    matrix, not the default matrix of the marking context.
    (lib/pdf_base.ps [1.6], lib/pdf_main.ps [1.5], lib/pdf_ops.ps [1.4]:
    2000/03/30 18:01:58 lpd)
    	- Resolving a Shading didn't create a reusable stream for the
    shading data; since the data was then read at unpredictable times, the
    shading or other constructs in the PDF file could read incorrect data.
    (lib/pdf_draw.ps [1.8]: 2000/04/03 06:01:25 lpd)

    Adds a lforall procedure for the PDF linearizer. (lib/pdf_base.ps [1.3]:
    2000/03/19 01:50:05 lpd)

    Changes the PDF interpreter so that following an object reference doesn't
    store the result back into the referring slot, and so that # # R always
    creates an indirect object. This is necessary for the PDF linearizer. It
    shouldn't have any visible effect (other than a possible small performance
    cost). (lib/pdf_base.ps [1.4], lib/pdf_draw.ps [1.4]: 2000/03/19 01:53:58
    lpd)

    Refactors some code to make it usable by the PDF linearizer.
    (lib/pdf_main.ps [1.3]: 2000/03/19 17:26:42 lpd)

    Speeds up loading embedded Type 1 fonts a little. (lib/pdf_base.ps [1.5],
    lib/pdf_font.ps [1.4]: 2000/03/24 07:42:16 lpd)

    Speeds up reading embedded Type 1 fonts a little more.
    (lib/pdf_font.ps [1.5]: 2000/03/24 16:28:26 lpd)

    Interpreter

    Fixes problems:
    	- Font substitution was broken. (lib/gs_fonts.ps [1.3]: 2000/03/19
    00:22:05 lpd)
    	- The CFF reader gave an error if a font included any Subrs (it's
    very surprising that this hasn't surfaced before, but apparently Acrobat
    Distiller always produces CFF fonts with no Subrs); the CFF reader didn't
    default lenIV to -1 for Type 1 CharStrings; the CFF reader wasn't able to
    read CIDFonts. (lib/gs_cff.ps [1.3], lib/gs_cidfn.ps [1.4]: 2000/03/19
    00:45:40 lpd)
    	- EXTEND_NAMES had stopped working, because not all places that
    needed the index of a name ref used name_index rather than r_size
    (ilocate.c), and because the high_index value in the name sub-table was set
    incorrectly (iname.c). (ilocate.c [1.2], iname.c [1.2]: 2000/03/19 01:33:23
    lpd)
    	- The attribute check for Functions being executed was incorrect
    (always succeeded). (zfunc.c [1.2]: 2000/03/19 02:12:37 lpd)
    	- s_add_filter didn't ensure enough buffering. This entailed moving
    the NullEncode/Decode filters to stream.[hc]. (sfilter1.c [1.2]: 2000/03/19
    03:15:02 lpd)
    	- The parameters of SubFileDecode filters weren't initialized fully
    (required by a change in this version). (zfilter.c [1.3]: 2000/03/19
    04:03:45 lpd)
    	- The AutoPositionEPSFiles Distiller parameter was misspelled
    AutoPositionEPSFile. (lib/gs_pdfwr.ps [1.2]: 2000/03/19 05:03:31 lpd)
    	- Enumerating the elements of a dictionary-based parameter list
    returned garbage for the keys. (iparam.c [1.2]: 2000/03/19 15:13:13 lpd)
    	- .buildfont0 should not check CIDSystemInfo compatibility. The
    PLRM3 says PostScript interpreters do not make this check, even though the
    PLRM2 says compatibility is required (!). (zfcmap.c [1.2]: 2000/03/19
    16:53:50 lpd)
    	- If log2_transfer_map_size > 8, identity transfer functions
    returned garbage. The fix requires that if a client wants to set a transfer
    function to the identity mapping, it must call gx_set_identity_transfer
    rather than simply setting the procedure to gs_identity_transfer.
    (zcolor.c [1.2]: 2000/03/19 17:14:47 lpd)
    	- Separation color spaces didn't store the separation name.
    (zcssepr.c [1.2]: 2000/03/19 17:21:36 lpd)
    	- The addition of the dummy cid_Setup procedure in gs 6.01 was
    accidentally commented out. (lib/gs_cidfn.ps [1.5]: 2000/03/21 00:11:55 lpd)
    	- The test for whether an CIDFontType 2 outline string was large
    enough to include prefixed metrics was backwards, which would have caused
    problems with any font that used MetricsCount. (zfcid.c [1.3]: 2000/03/21
    00:43:17 lpd)
    	- A couple of places in the Windows code didn't correctly handle
    Ghostscript version numbers of the form #.0#. (dwsetup.cpp [1.2]: 2000/03/22
    21:45:03 lpd)
    	- In some cases, re-registering an existing font or CIDFont with
    definefont would cause an invalidfont error. (zbfont.c [1.4],
    zfont42.c [1.3]: 2000/03/28 18:20:39 lpd)
    	- Re-registering a CIDFont with definefont, or defining a CIDFont
    with definefont instead of /CIDFont defineresource, caused an invalidfont
    error or a crash. (lib/gs_cidfn.ps [1.9], lib/gs_fonts.ps [1.4]: 2000/03/28
    18:21:50 lpd)
    	- The new C BuildGlyph code for CIDFontType 0 fonts didn't handle
    GlyphDirectory or Type 2 CharStrings correctly. (lib/gs_cidfn.ps [1.12],
    zfcid.c [1.8]: 2000/03/31 23:21:57 lpd)
    	- The internaldict "operator" was allocated in local VM, preventing
    it from being bound into procedures allocated in global VM.
    (lib/gs_init.ps [1.6]: 2000/04/04 22:16:02 lpd)
    	- If there was a CIDInit ProcSet defined in the filesystem, the code
    for initializing the built-in CIDInit ProcSet became confused.
    (lib/gs_cidfn.ps [1.13]: 2000/04/04 22:17:33 lpd)
    	- Fixes several problems in resourceforall and resource loading: the
    operands of resourceforall were restored even in the case of an error in the
    client's procedure; the name Instances had special meaning for some Adobe
    code; resourceforall caused an invalidaccess error if an operand was in
    local VM but the current VM was global; loading a resource from a file could
    cause a typecheck error if the file left values on the operand stack.
    (interp.c [1.3], lib/gs_ccfnt.ps [1.2], lib/gs_res.ps [1.3]: 2000/04/04
    22:26:02 lpd)
    	- resourceforall didn't enumerate external (loadable) instances, and
    would enumerate an instance twice if it had both a local and a global
    definition. (lib/gs_res.ps [1.4]: 2000/04/05 21:07:02 lpd)
    	- The implementation of resourcestatus wasn't compatible with some
    badly written code in an Adobe font downloader that assumes that the
    implementation of resourcestatus in Generic and Font is the same.
    (lib/gs_res.ps [1.5]: 2000/04/05 21:20:07 lpd)
    	- The just-checked-in fixed for resourceforall didn't work properly
    for the IdiomSet category. (They probably failed for other categories that
    had no instances, but we didn't check this.) (lib/gs_res.ps [1.6]:
    2000/04/05 21:51:43 lpd)
    	- Some Adobe font downloading code assumed that loading a resource
    file would never leave extra values on the stack; our implementation didn't
    ensure this (by popping them if needed). (lib/gs_res.ps [1.8]: 2000/04/06
    04:50:28 lpd)
    	- If an alphabetic font defined and used a .notdef character,
    pdfwrite always converted it to a bitmap. (lib/gs_lgo_e.ps [1.2]: 2000/04/07
    02:48:23 lpd)

    Provides a gs_atan2_degrees procedure to parallel sin and cos.
    (zmath.c [1.2]: 2000/03/18 23:10:39 lpd)

    Speeds up string garbage collection by scanning unmodified string regions
    faster. (igcstr.c [1.2]: 2000/03/18 23:29:32 lpd)

    Adds the ImagemaskTrapping parameter to the trapping state.
    (lib/gs_trap.ps [1.2]: 2000/03/18 23:35:53 lpd)

    Increments the version number to 6.20, in anticipation of the next release.
    (We do this at the beginning of the development for a release, not the end.)
    (lib/gs_init.ps [1.4]: 2000/03/19 00:27:22 lpd)

    Adds a pseudo-encoding for the CFF StandardStrings that represent
    characters. (lib/gs_cff.ps [1.2], lib/gs_css_e.ps [1.1]: 2000/03/19 00:38:50
    lpd)

    Refactors the code for getting Type 1/2/4 font parameters so it can be used
    for FDArray entries of CIDFontType 0 fonts. (ifont1.h [1.2], zfont1.c [1.2]:
    2000/03/19 02:07:45 lpd)

    Speeds up Function evaluation slightly, by preallocating space for a
    reasonable number of operands and results on the C stack rather than always
    allocating it on the heap. (zfunc.c [1.3]: 2000/03/19 02:16:58 lpd)

    Adds a public procedure for determining whether a PostScript object is a
    Function, and if so, returning the pointer to the gs_function_t structure.
    (ifunc.h [1.2], zfunc.c [1.4]: 2000/03/19 02:22:01 lpd)

    Splits out the [T]BCP filter interface into a separate file. (zfbcp.c [1.2]:
    2000/03/19 02:40:18 lpd)

    Adds a skip_count parameter to the SubFileDecode filter, giving the number
    of initial bytes or records to skip over. (Needed for printing FunctionType
    4 functions, possibly useful for other things.) (sfilter1.c [1.3]:
    2000/03/19 03:20:18 lpd)

    Replaces the implementation of FunctionType 4 functions at the PostScript
    language level with one that uses the new library-based facilities.
    (zdevice2.c [1.2], zfunc4.c [1.2]: 2000/03/19 06:56:23 lpd)

    Changes the key type returned by parameter list enumeration to include a
    persistence flag, makes C parameter lists support non-persistent keys, and
    upgrades GC descriptors so that parameter lists can be used non-transiently;
    updates implementors of parameter lists to call gs_param_list_init to
    initialize the common members, which is now required. (iparam.c [1.3]:
    2000/03/19 15:16:11 lpd)

    Makes Separation and DeviceN color spaces convert their tint transform
    function to a FunctionType 4 Function if possible, for better accuracy and
    to allow writing in PDF files. (lib/gs_lev2.ps [1.2], lib/gs_ll3.ps [1.2]:
    2000/03/19 15:28:34 lpd)

    Makes st_indexed_map private. Clients must now use the constructor procedure
    alloc_indexed_map rather than allocating instances directly.
    (zcsindex.c [1.2]: 2000/03/19 16:37:28 lpd)

    Refactors the code for building fonts so it can be used for FDArray entries
    of CIDFontType 0 fonts. (bfont.h [1.2], zbfont.c [1.2]: 2000/03/19 16:45:47
    lpd)

    Adds a .fileposition operator that will read the position even of
    non-positionable streams, needed for the PDF linearizer. (zfileio.c [1.3]:
    2000/03/20 04:30:49 lpd)

    Starts to move support for CIDFontType 0 and 2 into C code, needed by the
    PDF writer for handling CID-keyed fonts. Implements GlyphDirectory for
    CIDFonts. Makes GDBytes and CIDMapOffset optional for CIDFontType 0 fonts
    that have a GlyphDirectory (not documented in the PLRM, but clearly
    correct). Implements Adobe 3011 features: integer and dictionary CIDMaps,
    and the MetricsCount entry, in CIDFontType 2 fonts (but only in the C code,
    which isn't hooked in yet, not in the PostScript code in gs_cidfn.ps.)
    (icid.h [1.1], ifont.h [1.2], ifont42.h [1.1], zcid.c [1.2], zfcid.c [1.1],
    zfcmap.c [1.3], zfont42.c [1.2]: 2000/03/20 19:53:06 lpd)

    Hooks the new CIDMap code into the BuildGlyph procedure for CIDFontType 2
    fonts. (Contrary to a previous log comment, MetricsCount is already hooked
    in.) Support for CIDFontType 2 fonts is now implemented entirely in C, as
    for Type 42 fonts. (lib/gs_cidfn.ps [1.6], zfcid.c [1.2]: 2000/03/21
    00:32:15 lpd)

    Extends the C support for CIDFontType 0 fonts to include those with FontType
    2 subfonts in the FDArray (an Adobe 3011 addition, specifically for CFF
    fonts). (ifont2.h [1.1], zfcid.c [1.4], zfont2.c [1.2]: 2000/03/21 07:43:42
    lpd)

    Changes Subr loading for CIDFontType 0 fonts from lazy to immediate, so that
    C code can be guaranteed access to the Subrs. (In every CIDFontType 0 font
    that we have seen, SubrCount is 5, so this has no significant time or space
    cost.) Also adds support for FDBytes > 1 in GlyphDirectory definitions.
    (lib/gs_cidfn.ps [1.7]: 2000/03/21 20:06:44 lpd)

    Splits off the ReusableStreamDecode filter as a separate module, since
    CIDFontType 0 fonts will use it even in LanguageLevels below 3.
    (lib/gs_frsd.ps [1.1], lib/gs_ll3.ps [1.3], zfrsd.c [1.1]: 2000/03/21
    21:34:57 lpd)

    Makes file streams remember the file name, needed for efficiently
    implementing reusable streams. (zfile.c [1.3], zfileio.c [1.4]: 2000/03/23
    02:13:40 lpd)

    Changes the new .filename operator to return true/false rather than causing
    an error; redefines findlibfile in terms of a simpler .libfile operator +
    .filename. (lib/gs_init.ps [1.5], zfile.c [1.4], zfileio.c [1.5]: 2000/03/23
    18:47:17 lpd)

    Finishes implementing the file case of ReusableStreamDecode. This required
    adding the ability to restrict file-reading streams to a subfile.
    (lib/gs_frsd.ps [1.2], sfilter1.c [1.4], zfileio.c [1.6], zfrsd.c [1.2]:
    2000/03/24 03:59:42 lpd)

    Changes the implementation of incrementally loaded CIDFontType 0 fonts to
    use a ReusableStreamDecode filter, in anticipation of moving the BuildGlyph
    procedure for these fonts from PostScript to C. (lib/gs_cidfn.ps [1.8],
    zbfont.c [1.3], zfcid.c [1.5]: 2000/03/27 16:36:24 lpd)

    Changes the get_outline / glyph_data procedure for getting encoded font
    outline data to return an indication of whether the outline data were just
    allocated and can be freed by the client. (This is a possibly
    non-backward-compatible change.) (zfcid.c [1.6]: 2000/03/28 18:47:02 lpd)

    Changes the procs structure of gs_type1_data to an in-line structure rather
    than a pointer to a const structure. (Needed for moving CIDFontType 0
    support into C.) (zfont1.c [1.3]: 2000/03/29 22:10:31 lpd)

    Finishes moving support for CIDFontType 0 fonts from PostScript to C.
    (ifont.h [1.3], ifont42.h [1.2], lib/gs_cidfn.ps [1.10], zfcid.c [1.7],
    zfont42.c [1.4]: 2000/03/31 04:55:18 lpd)

    Allows dictionaries as the value of CIDMap resources. (Also removes an
    unrelated obsolete comment.) (lib/gs_cidfn.ps [1.11]: 2000/03/31 05:11:30
    lpd)

    Finishes implementing the ability to write CIDFontType 0 CFFs. This involved
    a surprising number of changes in other font-related files. (ichar1.h [1.2],
    ifcid.h [1.1], zchar1.c [1.2], zfcid.c [1.9], zfcid0.c [1.1],
    zfcid1.c [1.1], zfont1.c [1.4]: 2000/04/02 07:38:46 lpd)

    Makes the .writefont9 operator (used only for testing) available in both
    DEBUG and PROFILE configurations. (zfcid0.c [1.2]: 2000/04/03 02:37:55 lpd)

    Extends .forceput to handle arrays as well as dictionaries, required to fix
    a bug with internaldict. (zdict.c [1.2], zgeneric.c [1.2]: 2000/04/04
    22:13:23 lpd)

    Works around an Adobe code assumption that the default FindResource
    procedure does *not* call the ResourceStatus procedure if the requested
    instance is already defined in VM. (lib/gs_res.ps [1.7]: 2000/04/05 23:31:54
    lpd)

    Implements the framework for superexec (but none of the actual access check
    bypasses). (icontext.c [1.2], icstate.h [1.2], zcontrol.c [1.2]: 2000/04/06
    04:40:06 lpd)

    Extends the undocumented CCRun procedure to take an additional argument, a
    Private dictionary, required by some Adobe font downloading code.
    (lib/gs_type1.ps [1.3]: 2000/04/06 05:25:10 lpd)

    Streams

    Fixes problems:
    	- s_add_filter didn't ensure enough buffering. This entailed moving
    the NullEncode/Decode filters to stream.[hc]. (sfilter.h [1.3],
    stream.c [1.3], stream.h [1.3]: 2000/03/19 03:15:02 lpd)
    	- When FPU_TYPE <= 0, the image interpolation code lost too much
    accuracy, producing color streaks in the output. (Fix by DanCoby.)
    (siscale.c [1.2]: 2000/03/29 20:34:45 lpd)
    	- Fixes a couple of typos in the recently checked-in image
    interpolation fix. (siscale.c [1.3]: 2000/03/30 06:55:26 lpd)

    Splits out the [T]BCP filter interface into a separate file. (sbcp.c [1.2],
    sbcp.h [1.1], sfilter.h [1.2]: 2000/03/19 02:40:18 lpd)

    Adds a skip_count parameter to the SubFileDecode filter, giving the number
    of initial bytes or records to skip over. (Needed for printing FunctionType
    4 functions, possibly useful for other things.) (sfilter.h [1.4]: 2000/03/19
    03:20:18 lpd)

    Changes the key type returned by parameter list enumeration to include a
    persistence flag, makes C parameter lists support non-persistent keys, and
    upgrades GC descriptors so that parameter lists can be used non-transiently;
    updates implementors of parameter lists to call gs_param_list_init to
    initialize the common members, which is now required. (spsdf.c [1.2]:
    2000/03/19 15:16:11 lpd)

    Makes file streams remember the file name, needed for efficiently
    implementing reusable streams. (stream.c [1.4], stream.h [1.4]: 2000/03/23
    02:13:40 lpd)

    Finishes implementing the file case of ReusableStreamDecode. This required
    adding the ability to restrict file-reading streams to a subfile.
    (sfxfd.c [1.2], sfxstdio.c [1.2], stream.c [1.5], stream.h [1.5]: 2000/03/24
    03:59:42 lpd)

    Changes a few initializations to suppress warnings from one picky compiler
    that doesn't like ptr = buf - 1 where buf is an array. (spsdf.c [1.3]:
    2000/03/28 02:01:34 lpd)

    Library

    Fixes problems:
    	- Two comments in the file were incorrect. (gsiparm3.h [1.2]:
    2000/03/19 02:46:11 lpd)
    	- param_coerce_typed, which works with any parameter list
    implementation, was incorrectly described as associated with the default
    implementation. (gsparam.h [1.2]: 2000/03/19 03:37:08 lpd)
    	- TrueType fonts didn't use vhea/vmtx if WMode = 1. Also makes
    gs_font_type42 subclassable, for implementing CIDFontType 2 fonts, and makes
    its procedure for getting a glyph's side bearing and width virtual, required
    to support MetricsCount in CIDFontType 2 fonts. (gstype42.c [1.3],
    gxfont42.h [1.2]: 2000/03/19 03:58:51 lpd)
    	- ImageType 4 images didn't give an error for out-of-range MaskColor
    values. The file also had an unnecessary #include. (gximage4.c [1.2]:
    2000/03/19 04:10:09 lpd)
    	- If log2_transfer_map_size > 8, identity transfer functions
    returned garbage. The fix requires that if a client wants to set a transfer
    function to the identity mapping, it must call gx_set_identity_transfer
    rather than simply setting the procedure to gs_identity_transfer.
    (gxclrast.c [1.3], gxcmap.c [1.2], gxfmap.h [1.2]: 2000/03/19 17:14:47 lpd)
    	- Fixes a warning about aliasing produced by one extremely picky
    compiler. (gsnogc.c [1.2]: 2000/03/22 21:39:32 lpd)
    	- Filling or clipping with ridiculously large (out-of-bounds)
    coordinates could cause an internal overflow that produced incorrect
    results. (This is probably not the last such bug.) (gxfill.c [1.2]:
    2000/03/30 07:03:59 lpd)

    Provides a gs_atan2_degrees procedure to parallel sin and cos.
    (gsmisc.c [1.2], gxfarith.h [1.2]: 2000/03/18 23:10:39 lpd)

    Improves the 8x8 bitmap "flipping" procedure to take advantage of 32-bit
    ints. (gsutil.c [1.2]: 2000/03/18 23:16:16 lpd)

    Adds a public procedure for restricting a color to its legal range.
    (gscspace.c [1.2], gscspace.h [1.2], gxcspace.h [1.2]: 2000/03/18 23:19:17
    lpd)

    Adds the new ImagemaskTrapping parameter to the trapping state.
    (gstrap.c [1.2], gstrap.h [1.2]: 2000/03/18 23:26:17 lpd)

    Increments the version number to 6.20, in anticipation of the next release.
    (We do this at the beginning of the development for a release, not the end.)
    (gscdef.c [1.2]: 2000/03/19 00:27:22 lpd)

    Adds a pseudo-encoding for the CFF StandardStrings that represent
    characters. (gsccode.h [1.2]: 2000/03/19 00:38:50 lpd)

    Adds a bit_index procedure to the implementation of device halftones,
    required for writing halftones in PDF files. (The only implementors are
    internal ones.) (gxdht.h [1.2], gxhtbit.c [1.2]: 2000/03/19 05:10:55 lpd)

    Adds a public procedure for getting a palette entry of an Indexed color
    space, used when writing Indexed color spaces in PDF files.
    (gscindex.h [1.1], gscolor2.c [1.2], gscolor2.h [1.2]: 2000/03/19 05:20:28
    lpd)

    Reimplements "PostScript calculator" (FunctionType 4) functions entirely in
    C, to allow them to be written out in PDF files. (gsfunc4.c [1.1],
    gsfunc4.h [1.1], gsstruct.h [1.2]: 2000/03/19 05:25:53 lpd)

    Moves gx_device_color_equal to the public API, for detecting redundant color
    setting when writing PDF files. (gsdcolor.h [1.2], gxdcolor.c [1.2],
    gxdcolor.h [1.2]: 2000/03/19 06:46:08 lpd)

    Changes the default value of BufferSpace to 4 Mb. In desktop applications,
    this is a reasonable value that can substantially improve performance
    (especially for color printers); embedded applications will want to set
    BufferSpace themselves in any case. (gdevprn.h [1.2]: 2000/03/19 06:51:13
    lpd)

    Adds virtual procedures for Functions to write their parameters to a
    parameter list, and to access their data source and subfunctions. This is
    needed for writing Functions in PDF files. This change is also a
    prerequisite for the C implemention of FunctionType 4 functions, even though
    it appears later in the change log. (gsdsrc.h [1.2], gsfunc.c [1.2],
    gsfunc.h [1.2], gsfunc0.c [1.2], gsfunc3.c [1.2], gsparam.c [1.2],
    gsparam.h [1.3], gxfunc.h [1.2]: 2000/03/19 07:24:53 lpd)

    Splits off "vanilla" Functions into separate files, in anticipation of
    removing them (they were only used to implement PostScript Calculator
    Functions). (gsfunc.c [1.3], gsfunc.h [1.3], gsfuncv.c [1.1],
    gsfuncv.h [1.1]: 2000/03/19 07:33:08 lpd)

    Adds a procedure for allocating a C parameter list. (gscparam.c [1.2],
    gsparam.h [1.4]: 2000/03/19 15:00:05 lpd)

    Undoes a premature change that depends on an update not yet checked in.
    (gscparam.c [1.3]: 2000/03/19 15:07:59 lpd)

    Changes the key type returned by parameter list enumeration to include a
    persistence flag, makes C parameter lists support non-persistent keys, and
    upgrades GC descriptors so that parameter lists can be used non-transiently;
    updates implementors of parameter lists to call gs_param_list_init to
    initialize the common members, which is now required. (gscparam.c [1.4],
    gsparam.c [1.3], gsparam.h [1.5]: 2000/03/19 15:16:11 lpd)

    Adds a procedure for copying one parameter list to another.
    (gsparamx.c [1.2], gsparamx.h [1.2]: 2000/03/19 15:35:31 lpd)

    Records the CTM used for sampling HalftoneType 1 spot functions. This is
    needed for recognizing the standard spot functions when producing PDF
    output. Also factors the code for initializing spot functions for the
    benefit of the PDF writer. (gshtscr.c [1.2], gxdht.h [1.3], gzht.h [1.2]:
    2000/03/19 15:43:36 lpd)

    Adds a proc_data member to the map for Separation and Indexed color spaces.
    (gscolor2.c [1.3], gxcolor2.h [1.2]: 2000/03/19 16:23:46 lpd)

    Makes st_indexed_map private. Clients must now use the constructor procedure
    alloc_indexed_map rather than allocating instances directly.
    (gscolor2.c [1.4], gscsepr.c [1.2], gxclrast.c [1.2], gxcolor2.h [1.3]:
    2000/03/19 16:37:28 lpd)

    Adds procedures for building and accessing DeviceN color spaces.
    (gscdevn.c [1.2], gscdevn.h [1.1]: 2000/03/19 17:02:37 lpd)

    Exports the 'blend' operators of the Type 1 interpreter, for use by the Type
    1 / Type 2 font writer. (gstype1.c [1.3], gxtype1.c [1.2], gxtype1.h [1.3]:
    2000/03/19 18:46:44 lpd)

    Starts to move support for CIDFontType 0 and 2 fonts into C code. (These
    header files are the ones needed to compile the new gdevpsf* files; they
    don't interact with any existing code.) (gxcid.h [1.1], gxfcid.h [1.1]:
    2000/03/20 06:40:22 lpd)

    Moves font-writing support into a new module (gdevpsf*), changing the source
    file names. Adds the ability to write CFF fonts, with either Type 1 or Type
    2 CharStrings; unfortunately, Acrobat Reader appears not to accept CFF fonts
    with Type 1 CharStrings. Adds the ability to convert Type 1 CharStrings to
    Type 2, including optimizing sequences of Type 1 operators into a single
    Type 2 operator. Implements writing CIDFontType 0 CFF fonts (CIDFonts) [NOT
    TESTED]. Starts (just barely) to remove more unneeded information from
    embedded TrueType fonts. (gxttf.h [1.1]: 2000/03/20 07:02:12 lpd)

    Starts to move support for CIDFontType 0 and 2 into C code, needed by the
    PDF writer for handling CID-keyed fonts. Implements GlyphDirectory for
    CIDFonts. Makes GDBytes and CIDMapOffset optional for CIDFontType 0 fonts
    that have a GlyphDirectory (not documented in the PLRM, but clearly
    correct). Implements Adobe 3011 features: integer and dictionary CIDMaps,
    and the MetricsCount entry, in CIDFontType 2 fonts (but only in the C code,
    which isn't hooked in yet, not in the PostScript code in gs_cidfn.ps.)
    (gsfcid.c [1.1], gsfcmap.c [1.3], gxfcmap.h [1.2], gxfont1.h [1.2]:
    2000/03/20 19:53:06 lpd)

    Changes a few initializations to suppress warnings from one picky compiler
    that doesn't like ptr = buf - 1 where buf is an array. (gxclpath.c [1.2]:
    2000/03/28 02:01:34 lpd)

    Changes the get_outline / glyph_data procedure for getting encoded font
    outline data to return an indication of whether the outline data were just
    allocated and can be freed by the client. (This is a possibly
    non-backward-compatible change.) (gxfcid.h [1.2], gxfont42.h [1.3]:
    2000/03/28 18:47:02 lpd)

    Changes the procs structure of gs_type1_data to an in-line structure rather
    than a pointer to a const structure. (Needed for moving CIDFontType 0
    support into C.) (gstype1.c [1.4], gstype2.c [1.3], gxfont1.h [1.3],
    gxtype1.c [1.3]: 2000/03/29 22:10:31 lpd)

    Finishes moving support for CIDFontType 0 fonts from PostScript to C.
    (gxfcid.h [1.3]: 2000/03/31 04:55:18 lpd)

    Finishes implementing the ability to write CIDFontType 0 CFFs. This involved
    a surprising number of changes in other font-related files. (gsfcid.c [1.2],
    gxfcid.h [1.4]: 2000/04/02 07:38:46 lpd)

    Version 6.01 (2000-03-17)

    This is a bug-fix release for 6.0.

    This release fixes the following reported bugs: #101555, #101813, #101816,
    #101818, #101827, #101830, #101871, #101853, #101906, #101949, #101950,
    #102003, #102004, #102038, #102081, #102936.

    Incompatible changes

    (Platforms)
    	- OpenVMS using VAX C is no longer supported.  (OpenVMS with DEC C
    and gcc are still supported.)
    (Drivers)
    	- The third argument of psdf_set_color is changed from const char *
    to const psdf_set_color_commands_t *.
    (Interpreter)
    	- The non-standard feature of writing dictionaries in binary object
    output is now disabled by default, but can now be enabled dynamically.
    (Library)
    	- The definition of TRANSPARENCY_PER_H_P is moved from gdevmrop.h to
    gsropt.h.
    	- The handling of the source opaque, texture transparent case of
    RasterOp when TRANSPARENCY_PER_H_P is defined is changed slightly.

    Documentation

    Fixes problems:
    	- Fixes a typo. (man/ps2pdf.1 [1.2]: 2000/03/10 03:11:06 lpd)
    	- When converting PostScript to PDF, selecting /Bicubic as an image
    DownsampleType caused an error instead of defaulting to /Average.
    (doc/Ps2pdf.htm [1.2]: 2000/03/10 04:16:09 lpd)
    	- The gs###src.zip and gs###lib.zip files weren't mentioned as being
    included in distributions; News.htm and Changes.htm weren't mentioned at
    all. (doc/Release.htm [1.5]: 2000/03/15 07:23:52 lpd)
    	- Fixes a problem producing too much black in the output; also adds
    support for 5 new printers (H-P Color DeskJet 690, H-P DesignJet 750, and
    Epson Stylus Color 200). Note that this is user-contributed code.
    (doc/Devices.htm [1.2]: 2000/03/16 02:01:36 lpd)

    In ansi2knr, adds user-contributed support for concatenated string literals
    and character constants, and fixes for a couple of minor bugs.
    (man/ansi2knr.1 [1.2]: 2000/03/10 03:16:17 lpd)

    Removes an inappropriate copying notice. (doc/Hershey.htm [1.2]: 2000/03/10
    07:03:57 lpd)

    Clarifies when xdpyinfo and xwininfo are needed. Adds privacy options for
    problem reports. (doc/Bug-form.htm [1.2]: 2000/03/10 07:06:08 lpd)

    Adds a new eps2eps utility analogous to ps2ps. (man/eps2eps.1 [1.1],
    man/ps2ps.1 [1.2]: 2000/03/10 07:51:55 lpd)

    Updates the documentation on making RPMs, which is no longer supported.
    (doc/Install.htm [1.2], doc/Make.htm [1.2]: 2000/03/10 07:58:00 lpd)

    Adds a recommendation to use gcc on SGI platforms. (doc/Make.htm [1.3]:
    2000/03/10 07:59:53 lpd)

    Updates documentation regarding Unix systems that do/don't use libpthread.
    (doc/Make.htm [1.4]: 2000/03/10 08:01:35 lpd)

    Removes support for VAX C, which DEC stopped supporting 9 (!) years ago.
    (doc/Make.htm [1.5], doc/Use.htm [1.2]: 2000/03/10 08:02:59 lpd)

    Updates the documentation for building Aladdin releases to reflect revised
    procedures for the Windows executable, and a few other minor changes.
    (doc/Release.htm [1.2]: 2000/03/10 15:55:39 lpd)

    Adds the ability to compile on OS/2 with XFree86. (doc/Install.htm [1.3],
    doc/Make.htm [1.6]: 2000/03/10 19:50:49 lpd)

    Moves all history for versions 5.n into History5.htm; creates History6.htm
    for versions 6.n; redefines News.htm as containing only news for the current
    release; adds (a link to) Changes.htm for the mechanically generated change
    log. (doc/History5.htm [1.2], doc/History6.htm [1.1], doc/News.htm [1.2],
    doc/README [1.2], doc/Readme.htm [1.2]: 2000/03/14 06:14:43 lpd)

    Partially updates the release procedure documentation to reflect the use of
    SourceForge and CVS. (doc/Release.htm [1.3]: 2000/03/14 06:39:23 lpd)

    Adds a change log generated mechanically from the CVS logs. Future releases
    may omit this file (doc/Changes.htm) from their change log.
    (doc/Changes.htm [1.1], doc/News.htm [1.3]: 2000/03/14 06:48:44 lpd)

    Revises the release procedures to reflect use of SourceForge, and to
    separate out the procedures for building Windows executables.
    (doc/Release.htm [1.4]: 2000/03/15 02:24:58 lpd)

    Adds information on uninstalling Ghostscript on Windows.
    (doc/Install.htm [1.4]: 2000/03/15 07:29:53 lpd)

    Adds the ability to set the ProcessColorModel of the pdfwrite device to
    /DeviceGray, /DeviceRGB, or /DeviceCMYK. This affects the color space used
    for fill, stroke, text, and imagemask, and for images that (for whatever
    reason) can't be written in their specified color space. Note that this is a
    short-term fix: pdfwrite should output colors in the color space in which
    they were specified. However, a proper fix will require more significant
    architectural changes. (doc/News.htm [1.4]: 2000/03/16 01:21:23 lpd)

    Adds a reference to a third-party Fontmap for the Computer Modern fonts.
    (doc/Fonts.htm [1.2]: 2000/03/16 04:05:07 lpd)

    Adds documentation and a makefile entry for Matthew Gelhaus' cdj880 driver.
    The code will eventually be included in gdevcd8.c, but it is not yet mature
    enough. (doc/Devices.htm [1.3]: 2000/03/16 08:09:42 lpd)

    Updates the version number reference in the troff header.
    (man/ps2pdf.1 [1.3], man/ps2ps.1 [1.3]: 2000/03/17 00:47:08 lpd)

    Removes the attempted documentation on building Windows executable
    distributions: it was never correct, and Aladdin will no longer be creating
    such distributions. Also reorganizes the document slightly and brings the
    rest of it fully into line with reality. (doc/Release.htm [1.6]: 2000/03/17
    04:40:47 lpd)

    Adds information on building with the Intel C/C++ optimizing compiler
    (requires the Microsoft Visual C++ environment), and fixes a typo in the
    link to ftp.cdrom.com. (doc/Make.htm [1.7]: 2000/03/17 17:42:59 lpd)

    Checks in the first wrap-up for the 6.01 release. (doc/Changes.htm [1.2],
    doc/History6.htm [1.2], doc/News.htm [1.5]: 2000/03/18 04:13:40 lpd)

    Procedures

    Fixes problems:
    	- The terminating $ on the $Id: line in gsmalloc.c was missing, and
    dwuninst.rc lacked a $Id: line. (dwuninst.rc [1.2]: 2000/03/10 03:44:33 lpd)
    	- The %ram% IODevice was defined, but should not be (it represents a
    RAM-based file system, which Ghostscript does not provide). Fix: The type of
    the %null% IODevice was /FileSystem rather than /Special. (int.mak [1.2]:
    2000/03/10 07:02:07 lpd)
    	- The dependency list for coslwxl omitted a $(DD).
    (contrib.mak [1.2]: 2000/03/10 07:30:54 lpd)
    	- The makefile still referred to a long-gone driver for the DEC
    LA70. (contrib.mak [1.3]: 2000/03/10 07:32:43 lpd)
    	- The Unix install process tried to make links without deleting them
    first. (unixinst.mak [1.2]: 2000/03/10 07:49:21 lpd)
    	- The Watcom compiler switches didn't force enums to occupy a full
    int, leading to execution errors because the code casts (enum *) pointers to
    (int *). (wccommon.mak [1.2]: 2000/03/10 08:15:31 lpd)
    	- The Windows zip archive didn't include font metrics files. (This
    change only fixes the build procedure: it doesn't actually update the
    currently released zip archive.) (winint.mak [1.2]: 2000/03/10 08:17:06 lpd)
    	- the "all architectures" build and test script hadn't been updated
    to use different STDLIBS values depending on where the platform provides the
    pthreads library. (all-arch.mak [1.2]: 2000/03/10 15:40:43 lpd)
    	- The documentation for building with pthreads on FreeBSD hadn't
    been updated. (unix-gcc.mak [1.2], unixansi.mak [1.2], unixtrad.mak [1.2]:
    2000/03/10 15:44:01 lpd)
    	- gsmalloc.c didn't include the prototype for gs_exit(), which it
    calls. (lib.mak [1.2]: 2000/03/10 15:53:08 lpd)

    Because of rampant confusion, disagreement, and lack of standardization,
    removes the RPM-related spec and patch files. (gs-fonts.rps [1.2],
    gs.rps [1.2], rpm-conf.dif [1.2]: 2000/03/10 03:22:04 lpd)

    Increases the stack size for the PC platforms, since a user had reported
    that the OS/2 stack size was too small. (dw32c.def [1.2],
    dwmain32.def [1.2], gsos2.def [1.2]: 2000/03/10 03:33:21 lpd)

    Updates the Brother HL7xx drivers with a new user-contributed version, plus
    a couple of minor fixes. (contrib.mak [1.4]: 2000/03/10 07:33:44 lpd)

    Adds a new eps2eps utility analogous to ps2ps. (unixinst.mak [1.3]:
    2000/03/10 07:51:55 lpd)

    Removes support for VAX C, which DEC stopped supporting 9 (!) years ago.
    (openvms.mak [1.2], openvms.mmk [1.2]: 2000/03/10 08:02:59 lpd)

    Updates all makefiles to the current libpng version, 1.0.5.
    (bcwin32.mak [1.2], dvx-gcc.mak [1.2], msvc32.mak [1.2], msvclib.mak [1.2],
    os2.mak [1.2], ugcclib.mak [1.2], unix-gcc.mak [1.3], unixansi.mak [1.3],
    unixtrad.mak [1.3], watc.mak [1.2], watclib.mak [1.2], watcw32.mak [1.2]:
    2000/03/10 15:48:58 lpd)

    Updates the version # to 6.01, and the version date. (version.mak [1.2]:
    2000/03/10 17:18:29 lpd)

    Adds the ability to compile on OS/2 with XFree86. (os2.mak [1.3]: 2000/03/10
    19:50:49 lpd)

    Moves all history for versions 5.n into History5.htm; creates History6.htm
    for versions 6.n; redefines News.htm as containing only news for the current
    release; adds (a link to) Changes.htm for the mechanically generated change
    log. (unixinst.mak [1.4], version.mak [1.3]: 2000/03/14 06:14:44 lpd)

    Adds entries for ibm-rs6000-aix-4.3, sgi-mips-irix6.5-64bit, and
    sun-sparc-solaris-64bit. (all-arch.mak [1.3]: 2000/03/15 18:38:29 lpd)

    Adds the ability to set the ProcessColorModel of the pdfwrite device to
    /DeviceGray, /DeviceRGB, or /DeviceCMYK. This affects the color space used
    for fill, stroke, text, and imagemask, and for images that (for whatever
    reason) can't be written in their specified color space. Note that this is a
    short-term fix: pdfwrite should output colors in the color space in which
    they were specified. However, a proper fix will require more significant
    architectural changes. (version.mak [1.4]: 2000/03/16 01:21:24 lpd)

    Adds documentation and a makefile entry for Matthew Gelhaus' cdj880 driver.
    The code will eventually be included in gdevcd8.c, but it is not yet mature
    enough. (contrib.mak [1.5]: 2000/03/16 08:09:42 lpd)

    Adds a missing dependency of gdevpdft.o on gxfont42.h. (devs.mak [1.2]:
    2000/03/17 02:59:26 lpd)

    Adds a disclaimer of responsibility for the makefile section for creating
    distribution archives, which Aladdin is no longer maintaining.
    (winint.mak [1.3]: 2000/03/17 03:01:58 lpd)

    Checks in the first wrap-up for the 6.01 release. (unix-gcc.mak [1.4],
    version.mak [1.5]: 2000/03/18 04:13:40 lpd)

    Utilities

    Fixes problems:
    	- The loader for the stochastic halftone incorrectly assumed that
    the resource file left the resource on the stack, causing a stackunderflow
    error. (lib/stocht.ps [1.2]: 2000/03/10 03:34:44 lpd)
    	- The ps2pdf*.bat scripts didn't set PS2PDFSW to the empty string if
    there were no arguments, causing the same file to be processed again.
    (lib/ps2pdf12.bat [1.2], lib/ps2pdf13.bat [1.2]: 2000/03/10 07:40:00 lpd)
    	- Fixes a typo in the fix for putting stdout in binary mode.
    (gp_ntfs.c [1.3]: 2000/03/18 01:15:16 lpd)
    	- For printer devices, a non-null definition for OutputFile was
    required even on platforms that had a default printer (as implemented by
    gp_open_printer for that platform). (gp_os9.c [1.2], gp_unix.c [1.2],
    gp_vms.c [1.2]: 2000/03/18 01:45:16 lpd)

    In ansi2knr, adds user-contributed support for concatenated string literals
    and character constants, and fixes for a couple of minor bugs.
    (ansi2knr.c [1.2]: 2000/03/10 03:16:17 lpd)

    Updates the pf2afm.ps utility with a revised version from its authors.
    (lib/pf2afm.ps [1.2]: 2000/03/10 03:35:37 lpd)

    Adds a new eps2eps utility analogous to ps2ps. (lib/eps2eps [1.1],
    lib/eps2eps.bat [1.1]: 2000/03/10 07:51:55 lpd)

    Removes a temporary file that was included in the fileset by mistake.
    (lib/history [1.2]: 2000/03/10 08:18:36 lpd)

    Changes the ps2pdf MS Windows / MS-DOS scripts to use temporary files to
    avoid the absurdly low limits on the length of a command line and the total
    size of environment variable definitions. (lib/ps2pdf.bat [1.2],
    lib/ps2pdf12.bat [1.3], lib/ps2pdf13.bat [1.3], lib/ps2pdfwr.bat [1.2],
    lib/ps2pdfxx.bat [1.1]: 2000/03/14 20:20:20 lpd)

    On Windows, puts stdout into binary mode as well as stdin, to allow piping
    printer output through stdout (not a good idea, but it should be supported
    as well as on other platforms). (gp_ntfs.c [1.2]: 2000/03/17 06:22:59 lpd)

    Drivers

    Fixes problems:
    	- When converting PostScript to PDF, selecting /Bicubic as an image
    DownsampleType caused an error instead of defaulting to /Average.
    (gdevpsdf.h [1.2], gdevpsdi.c [1.2], gdevpsdp.c [1.2]: 2000/03/10 04:16:09
    lpd)
    	- The mswinpr2 driver didn't handle setting BitsPerPixel to the same
    value when the device was already open, possibly causing an error on restore
    or grestore. (gdevwpr2.c [1.2]: 2000/03/10 04:26:07 lpd)
    	- When operating in buffered mode (MaxBitmap > 0), the X driver
    sometimes failed to copy all of the updated area to the screen.
    (gdevx.c [1.2], gdevx.h [1.2], gdevxini.c [1.2], gdevxxf.c [1.2]: 2000/03/10
    06:56:27 lpd)
    	- The [e]pswrite driver produced invalid output if the input file
    didn't end with a showpage. Also cleans up some formatting and removes a
    redundant test. (gdevps.c [1.2]: 2000/03/10 07:44:27 lpd)
    	- Fixes a problem producing too much black in the output; also adds
    support for 5 new printers (H-P Color DeskJet 690, H-P DesignJet 750, and
    Epson Stylus Color 200). Note that this is user-contributed code.
    (gdevupd.c [1.2], lib/bjc610a0.upp [1.2], lib/bjc610a1.upp [1.2],
    lib/bjc610a2.upp [1.2], lib/bjc610a3.upp [1.2], lib/bjc610a4.upp [1.2],
    lib/bjc610a5.upp [1.2], lib/bjc610a6.upp [1.2], lib/bjc610a7.upp [1.2],
    lib/bjc610a8.upp [1.2], lib/bjc610b1.upp [1.2], lib/bjc610b2.upp [1.2],
    lib/bjc610b3.upp [1.2], lib/bjc610b4.upp [1.2], lib/bjc610b6.upp [1.2],
    lib/bjc610b7.upp [1.2], lib/bjc610b8.upp [1.2], lib/cdj550.upp [1.2],
    lib/cdj690.upp [1.1], lib/cdj690ec.upp [1.1], lib/dnj750c.upp [1.1],
    lib/dnj750m.upp [1.1], lib/ras32.upp [1.2], lib/stc.upp [1.2],
    lib/stc1520h.upp [1.2], lib/stc2.upp [1.2], lib/stc200_h.upp [1.1],
    lib/stc2_h.upp [1.2], lib/stc2s_h.upp [1.2], lib/stc500p.upp [1.2],
    lib/stc500ph.upp [1.2], lib/stc600ih.upp [1.2], lib/stc600p.upp [1.2],
    lib/stc600pl.upp [1.2], lib/stc800ih.upp [1.2], lib/stc800p.upp [1.2],
    lib/stc800pl.upp [1.2], lib/stc_h.upp [1.2], lib/stc_l.upp [1.2],
    lib/stcany.upp [1.2]: 2000/03/16 02:01:36 lpd)
    	- The X driver's algorithm for deciding when to update the screen
    was changed several times between 5.50 and 6.0, and one of the more recent
    changes caused it to copy many more pixels to the screen than necessary if
    the file was making marks on the page in widely separated places.
    (gdevx.c [1.3]: 2000/03/17 07:35:43 lpd)
    	- In the X driver, the full-page buffer controlled by -dMaxBitmap=
    wasn't allocated with a stable allocator, possibly leading to memory access
    errors if save/restore were used. (gdevxini.c [1.3]: 2000/03/18 04:11:59
    lpd)

    Updates the Brother HL7xx drivers with a new user-contributed version, plus
    a couple of minor fixes. (gdevhl7x.c [1.2]: 2000/03/10 07:33:44 lpd)

    Enhances the [e]pswrite driver to handle Indexed color spaces over Device
    color spaces, only with the standard Decode. (gdevps.c [1.3]: 2000/03/10
    07:45:50 lpd)

    Adds the ability to set the ProcessColorModel of the pdfwrite device to
    /DeviceGray, /DeviceRGB, or /DeviceCMYK. This affects the color space used
    for fill, stroke, text, and imagemask, and for images that (for whatever
    reason) can't be written in their specified color space. Note that this is a
    short-term fix: pdfwrite should output colors in the color space in which
    they were specified. However, a proper fix will require more significant
    architectural changes. (gdevpsdf.c [1.2], gdevpsdf.h [1.3]: 2000/03/16
    01:21:24 lpd)

    Adds two more user-contributed 'uniprint' printer parameter sets: Epson
    Stylus Color 640, and a generic Epson Stylus Color in high resolution mode
    (720x720 dpi). (lib/stc640p.upp [1.1], lib/stcany_h.upp [1.1]: 2000/03/16
    02:03:40 lpd)

    PDF writer

    Fixes problems:
    	- In-line images emitted an extra 'q' (gsave), causing the CTM to
    become incorrect, entries to pile up on the dictionary stack, and an
    invalidrestore error to occur at the end of the page. (gdevpdfi.c [1.2]:
    2000/03/10 03:47:37 lpd)
    	- The change in 5.99 to work around Acrobat Reader's 32K limit on
    user space coordinates caused all 0-width rectangles to disappear, which had
    major effects on some files. (gdevpdfd.c [1.2]: 2000/03/10 03:48:10 lpd)
    	- Incrementally downloaded TrueType fonts produced truncated Widths
    tables in the output. We have patched this with a ******HACK****** that
    causes such fonts to be converted to bitmaps: the correct fix (to delay
    determining the range of valid characters until the font is written) is too
    large a change to make in a bug fix release. (gdevpdft.c [1.2]: 2000/03/10
    03:48:48 lpd)

    Adds the ability to set the ProcessColorModel of the pdfwrite device to
    /DeviceGray, /DeviceRGB, or /DeviceCMYK. This affects the color space used
    for fill, stroke, text, and imagemask, and for images that (for whatever
    reason) can't be written in their specified color space. Note that this is a
    short-term fix: pdfwrite should output colors in the color space in which
    they were specified. However, a proper fix will require more significant
    architectural changes. (gdevpdf.c [1.2], gdevpdfd.c [1.3], gdevpdfi.c [1.3],
    gdevpdfp.c [1.2], gdevpdft.c [1.3], gdevpdfu.c [1.2], gdevpdfx.h [1.2]:
    2000/03/16 01:21:24 lpd)

    Interpreter (PDF)

    Fixes problems:
    	- When interpreting a PDF file, the Install page device procedure
    got more and more deeply nested after every page, eventually causing an
    execstackoverflow. (lib/pdf_main.ps [1.2]: 2000/03/10 03:56:11 lpd)
    	- When interpreting a PDF file, text drawing operators didn't reset
    the text position, so strings could get displayed on top of each other. (bug
    introduced by a fix in 5.98) (lib/pdf_ops.ps [1.2]: 2000/03/10 03:57:03 lpd)
    	- When interpreting a PDF file, substituted small-cap fonts were
    created with incorrect scaling. (lib/pdf_font.ps [1.2]: 2000/03/10 03:57:50
    lpd)

    Cleans up some formatting. (lib/pdf_base.ps [1.2]: 2000/03/10 03:58:14 lpd)

    Interpreter

    Fixes problems:
    	- There were extraneous 'def' commands that caused definitions to be
    made in the wrong dictionary. (lib/gs_ttf.ps [1.2]: 2000/03/10 03:31:39 lpd)
    	- If an error occurred while loading a font, it wouldn't produce an
    error message. (This is a 'fix' of a 'fix' of a 'fix': it might well break
    something else.) (lib/gs_type1.ps [1.2]: 2000/03/10 03:37:14 lpd)
    	- When reading the strings of a binary object sequence, having to
    get more data from a procedure-based stream sometimes caused a syntaxerror.
    Fix: If the reserved (0) field in binary objects or binary object sequences
    was not 0, no syntaxerror occurred. (iscanbin.c [1.2]: 2000/03/10 03:38:50
    lpd)
    	- The code for handling execstackoverflow errors didn't cut back the
    stack correctly, possibly causing invalid memory accesses if an incorrect
    attempt was made to run a cleanup procedure. (interp.c [1.2]: 2000/03/10
    04:04:38 lpd)
    	- Writing of dictionaries in binary object output, a non-standard
    extension, was enabled by default, and also had to be enabled at startup
    time if it was ever going to be used. Fix: Binary error messages caused an
    error if the command wasn't of a type that printobject could handle. We now
    do what the Adobe implementations appear to do in this case, namely, convert
    the object with cvs. (lib/gs_btokn.ps [1.2]: 2000/03/10 04:27:31 lpd)
    	- CloseSource and CloseTarget were effectively ignored for Flate and
    LZW filters with a Predictor, and for the DCT filters. (ifilter.h [1.2],
    zfdctd.c [1.2], zfdcte.c [1.2], zfdecode.c [1.2], zfilter.c [1.2],
    zfilter2.c [1.2]: 2000/03/10 04:32:51 lpd)
    	- findlibfile didn't handle %iodevice% prefixes correctly.
    (zfile.c [1.2]: 2000/03/10 04:35:08 lpd)
    	- fileposition didn't give an error for filters or non-seekable
    streams. (zfileio.c [1.2]: 2000/03/10 04:35:53 lpd)
    	- Images with input from a file or filter demanded 1 byte of data
    too many, sometimes causing the last line of the image to be dropped. (bug
    probably introduced in 6.0) (zimage.c [1.2]: 2000/03/10 04:37:02 lpd)
    	- The check for a show within a cshow procedure for a CID font was
    wrong. Fix: Character widths in CIDFontType 0 fonts were ignored (!). Adds a
    .glyphwidth operator to support correct handling of character widths for CID
    fonts. Adds a glyphwidth procedure to the library, like glyphshow and
    glyphpath, in order to support correct handling of widths for CID fonts.
    (ichar.h [1.2], lib/gs_cidfn.ps [1.2], zchar.c [1.2], zcharx.c [1.2]:
    2000/03/10 04:41:47 lpd)
    	- resourcestatus for fonts was broken. (lib/gs_res.ps [1.2]:
    2000/03/10 04:54:15 lpd)
    	- Fixes incorrect documentation of several procedures.
    (lib/gs_fonts.ps [1.2]: 2000/03/10 07:00:28 lpd)
    	- The %ram% IODevice was defined, but should not be (it represents a
    RAM-based file system, which Ghostscript does not provide). Fix: The type of
    the %null% IODevice was /FileSystem rather than /Special. (ziodev2.c [1.2]:
    2000/03/10 07:02:07 lpd)
    	- Directly-loaded TrueType fonts (including embedded TrueType fonts
    in PDF files) could get confused with each other in the cache, because their
    XUIDs were based on the font checksum field, which some fonts don't have set
    correctly. (lib/gs_ttf.ps [1.3]: 2000/03/16 07:38:07 lpd)

    Adds a new example file, a 3-D synthetic image. (examples/doretree.ps [1.1]:
    2000/03/10 04:00:45 lpd)

    Adds implementations of the devforall, devstatus, and diskonline
    compatibility operators. (lib/gs_statd.ps [1.2]: 2000/03/10 04:01:55 lpd)

    Some Adobe CIDFonts include a line /Setup /cid_Setup load def that
    apparently is intended only to prevent the fonts from being loaded by a
    standard PostScript interpreter (as opposed to ATM or a special font
    loader), since cid_Setup is not defined anywhere and Setup is never
    referenced; this change adds a dummy definition of cid_Setup to work around
    this. (lib/gs_cidfn.ps [1.3]: 2000/03/10 04:53:25 lpd)

    Updates the version # to 6.01, and the version date. (lib/gs_init.ps [1.2]:
    2000/03/10 17:18:29 lpd)

    Changes the default undercolor removal and black generation functions back
    from f(k) = k to f(k) = 0. This fixes some, but not all, of the reported
    problems with color inkjet output in 6.0. (lib/gs_init.ps [1.3]: 2000/03/10
    18:47:31 lpd)

    On Windows, puts stdout into binary mode as well as stdin, to allow piping
    printer output through stdout (not a good idea, but it should be supported
    as well as on other platforms). (dwmainc.cpp [1.2]: 2000/03/17 06:22:59 lpd)

    Streams

    Changes the sbuf_min_left macro to a procedure for readability and in
    preparation for later revision. (stream.c [1.2], stream.h [1.2]: 2000/03/10
    03:40:13 lpd)

    Library

    Fixes problems:
    	- (%os%) currentdevparams didn't return (fixed) values for
    InitializeAction, Mounted, Removable, Searchable, SearchOrder, and
    Writeable, or (meaningful) values for BlockSize, Free, and LogicalSize.
    Currently, the latter values are dummies. (gsiodev.c [1.2]: 2000/03/10
    03:43:06 lpd)
    	- The terminating $ on the $Id: line in gsmalloc.c was missing, and
    dwuninst.rc lacked a $Id: line. (gsmalloc.c [1.2]: 2000/03/10 03:44:33 lpd)
    	- RasterOps with source transparency = 0, texture transparency = 1
    didn't match the (very peculiar) H-P specification even if
    TRANSPARENCY_PER_H_P was defined. (gdevdrop.c [1.2], gdevmrop.h [1.2],
    gsropt.h [1.2]: 2000/03/10 04:06:15 lpd)
    	- The prototype for gs_exit() was not included even though gs_exit()
    was called. Fix: A cast discarded const unnecessarily. (gsalloc.c [1.2]:
    2000/03/10 04:08:23 lpd)
    	- The type of the %pipe% IODevice was /FileSystem, whereas it should
    be /Special. (gdevpipe.c [1.2]: 2000/03/10 04:13:57 lpd)
    	- An incorrectly formatted procedure couldn't be converted correctly
    by ansi2knr. (gxidata.c [1.2]: 2000/03/10 04:30:58 lpd)
    	- The check for a show within a cshow procedure for a CID font was
    wrong. Fix: Character widths in CIDFontType 0 fonts were ignored (!). Adds a
    .glyphwidth operator to support correct handling of character widths for CID
    fonts. Adds a glyphwidth procedure to the library, like glyphshow and
    glyphpath, in order to support correct handling of widths for CID fonts.
    (gschar.c [1.2], gschar.h [1.2], gstext.c [1.2], gstext.h [1.2]: 2000/03/10
    04:41:47 lpd)
    	- The description of the value returned by code_map_decode_next in
    *pchr was incorrect. (documentation bug only) (gsfcmap.c [1.2]: 2000/03/10
    07:03:09 lpd)
    	- Fixes a problem producing too much black in the output; also adds
    support for 5 new printers (H-P Color DeskJet 690, H-P DesignJet 750, and
    Epson Stylus Color 200). Note that this is user-contributed code.
    (gsargs.h [1.2]: 2000/03/16 02:01:36 lpd)
    	- The code for Axial shadings incorrectly assumed that if the
    shading axis was horizontal or vertical in user space, it was also
    horizontal or vertical in device space: this caused incorrect results when
    the CTM wasn't orthogonal. (gxshade1.c [1.2]: 2000/03/17 08:17:55 lpd)
    	- For printer devices, a non-null definition for OutputFile was
    required even on platforms that had a default printer (as implemented by
    gp_open_printer for that platform). (gp.h [1.2], gsdevice.c [1.2]:
    2000/03/18 01:45:16 lpd)

    Clears the glyf and loca offsets in TrueType fonts that lack these tables,
    so that clients who care can tell whether the font is being downloaded
    incrementally. (gstype42.c [1.2]: 2000/03/10 03:45:29 lpd)

    Changes a few macro definitions to work around over-zealous compiler
    warnings. (gstype1.c [1.2], gstype2.c [1.2], gxtype1.h [1.2]: 2000/03/10
    04:29:37 lpd)

    Changes the default undercolor removal and black generation functions back
    from f(k) = k to f(k) = 0. This fixes some, but not all, of the reported
    problems with color inkjet output in 6.0. (gxdcconv.c [1.2]: 2000/03/10
    18:47:31 lpd)

    Version 6.0 (2000-02-03)

    This is the first public release since 5.50.  See the
    release summary for information about new capabilities and known
    problems.

    Documentation

    Documents the fact that the plane_depths of a gx_image_enum structure may
    vary, and that planes_wanted procedure of a gx_image_enum must return false
    if the depths *or* widths can change.  (gxiparam.h)

    Documents the fact that a wanted plane's wanted status, width, or depth can
    only be changed by a call of plane_data that provides data for that plane.
    (gxiparam.h)

    Documents the change in the handling of the pthreads library.
    (doc/Make.htm)

    Documents the fact that setting parameters for the DCTEncode filter in
    ps2pdf causes a crash.  (doc/Ps2pdf.htm)

    Documents another bug in the MIPSpro 7.x / IRIX 6.5.x compilers, with
    isave.c.  (doc/Make.htm)

    Corrects Russell Lang's e-mail address.  (doc/New-user.htm)

    Documents the new image operator test file and the pdfeof file.
    (doc/Psfiles.htm)

    Documents the 'w' argument for image_render procedures.  (gxiclass.h)

    Adds a little more checking to the release process.  (doc/Release.htm)

    Documents the return values from the font build_char procedure.  (gxfont.h)

    Documents the fact that the free 'zip' program is needed to build the
    self-extracting Windows executable, as well as WinZipSE.  (doc/Make.htm,
    msvc32.mak, winint.mak)

    Adds references to several new free fonts.  (doc/Fonts.htm)

    Documents an important invariant for streams.  (stream.h)

    Adds a reference for user-supported Watcom / GNU make makefiles.
    (doc/Make.htm, doc/New-user.htm)

    Documents the dependence of gs_ttf.ps on some of the gs_*_e.ps files.
    (lib/gs_ttf.ps)

    Documents how to make self-extracting Windows executables.
    (doc/Release.htm)

    Adds a number of new user-contributed man pages.  (unixinst.mak, man/gslp.1,
    man/wftopfa.1, man/printafm.1, man/pfbtopfa.1, man/font2c.1, man/dvipdf.1,
    man/ps2pdfwr.1, man/gsnd.1, man/pf2afm.1, man/ps2pdf.1)

    Procedures

    Fixes problems:
    	- Building on BSDI didn't work.  The simplest way to fix this was to
    change the linking of the pthreads library on Unix platforms to be included
    in STDLIBS rather than the "sync" implementation. (fix contributed by a
    user) (lib.mak, unix-gcc.mak, unixansi.mak, unixtrad.mak)
    	- Once again, some runtime files weren't installed.  (unixinst.mak)
    	- Building the self-extracting executable didn't work.  (winint.mak)

    Updates the user-contributed all-architectures makefile.  (all-arch.mak)

    Utilities

    Fixes problems:
    	- A needed #include was missing.  (geninit.c)
    	- There were signed/unsigned char mismatches.  (genht.c, geninit.c)
    	- The MacOS compiler imposes a 32K limit on the size of a stack
    frame: we changed the code to use malloc/free.  (geninit.c)

    Removes an unnecessary variable.  (echogs.c)

    Adds a file that attempts to test the image operators exhaustively.
    (lib/image-qa.ps, unixinst.mak)

    Enhances the prfont.ps utility to print CIDFonts.  (lib/prfont.ps)

    Adds a utility file that patches the PDF interpreter to allow garbage after
    the %%EOF (or the %%EOF to be missing completely).  (lib/pdfeof.ps)

    Drivers

    Fixes problems:
    	- The X driver compared too many bits of color value, leading to
    unnecessary halftoning.  (bug introduced by a fix in 5.99) (gdevxcmp.c)
    	- Output from the pswrite driver got a dictfull error on Level 1
    printers.  (gdevps.c)
    	- Anti-aliasing had stopped working on MS Windows and OS/2. (bug
    probably introduced in 5.65) (gdevmswn.c, gdevpm.c)

    Platforms

    Adds a conditional definition of PTHREAD_CREATE_DETACHED for old versions of
    the pthreads library.  (gp_psync.c)

    Updates the Microsoft Visual C++ library makefile for VC++ 6.  (msvclib.mak)

    Updates some copyright dates.  (winint.mak, dwsetup.rc)

    Fonts

    Updates the URW fonts to include the expanded Adobe character set, including
    many Eastern European accented characters.  (doc/New-user.htm)

    Removes a 'readonly' that inconvenienced the authors of ttf2pf.
    (lib/gs_ttf.ps)

    PDF writer

    Fixes problems:
    	- The Dest key was deleted from GoTo and GoToR link annotation
    pdfmarks.  (gdevpdfm.c)
    	- {name} references were substituted even in stream data for the
    /PUT pdfmark.  (gdevpdfm.c)
    	- The revision number was sometimes printed incorrectly if its
    fraction part was zero.  (gdevpdf.c)
    	- Embedded Multiple Master font instances weren't identified as
    MMType1 rather than Type1.  (gdevpdff.h, gdevpdff.c, gdevpdft.c, gdevpdfw.c)
    	- The test against MaxSubsetPct was incorrect when the percentages
    were equal.  (gdevpdfw.c)
    	- Font registrations weren't removed when the device was closed.
    (gdevpdff.h, gdevpdfx.h, gdevpdff.c, gdevpdfw.c)
    	- Multiple /OBJ pdfmarks with the same name caused an error.  For
    Distiller compatibility, we now allow this if the type is the same, even
    though the pdfmark specification doesn't say anything about this being
    legal.  (gdevpdfm.c)

    Removes an unnecessary variable.  (gdevpdff.c, gdevpdfr.c)

    Disables embedding Multiple Master font instances, since Acrobat Reader
    doesn't accept what appear to be correct output and we don't have time
    before the release to track down the problem.  (gdevpdft.c)

    Interpreter (PDF)

    Factors some code to allow patching the PDF reader to allow garbage after
    the %%EOF (or the %%EOF to be missing completely).  (lib/pdf_main.ps)

    Interpreter

    Fixes problems:
    	- Type 1 fonts with non-standard OtherSubrs had stopped working.
    (bug introduced since 5.60) (zchar1.c)
    	- usecmap didn't work.  (lib/gs_cmap.ps)
    	- The glyph_info procedure for Type 1 fonts didn't take Metrics[2]
    or CDevProc into account.  (zchar1.c, zfont1.c)
    	- The multiple-data-source case of images was broken. (bug
    introduced in 5.99) (zimage.c)
    	- If a page device Install procedure caused an error, things could
    be left in an inconsistent state.  (lib/gs_setpd.ps)
    	- Using a DeviceN color space could access uninitialized data in a
    color value.  (zcsdevn.c)
    	- DeviceN images with procedure data sources were broken.
    (zimage.c)
    	- Images with a procedure data source could terminate prematurely if
    their processing was interrupted.  (zimage.c)
    	- The garbage collector only marked half the name table sub-tables,
    and attempted to mark an equal number of invalid pointers, leading to
    invalid accesses or memory corruption.  (iname.c)

    Removes an unused variable.  (zmisc.c)

    Streams

    Fixes problems:
    	- sgets didn't reset the cursor pointers, so sgets into a client
    buffer followed by sseek (for some kinds of streams, including files) could
    get confused.  (stream.c)

    Library

    Fixes problems:
    	- A 'const' qualifier was omitted, leading to a type mismatch.
    (gxclrast.c)
    	- The revision number was sometimes printed incorrectly if its
    fraction part was zero.  (gsmisc.c)
    	- gs_image_next returned the wrong value in *pused if it incremented
    the plane number.  (bug introduced in 5.99) (gsimage.c)
    	- Only the last of the data_x and raster values in the local
    'planes' array in gs_image_next_planes were initialized.  (bug introduced in
    5.99) (gsimage.c)
    	- The multiple-data-source case of images was broken. (bug
    introduced in 5.99) (gsimage.h, gsimage.c)
    	- ImageType 3 images with unequal scaling for the mask and data
    didn't work.  (We thought they once did, but it appears they never have.)
    (gximage3.c)
    	- Images with 12-bit samples treated a Decode entry of [1 0] the
    same as [0 1].  (Other, general Decode entries worked correctly.)
    (gxipixel.c)
    	- ImageType 3 images didn't work if processing was ever interrupted
    for remapping a color.  (gximage3.c)
    	- Images in DeviceN color spaces with 12-bit samples didn't work.
    (gxi12bit.c, gxidata.c)
    	- Images in DeviceN color spaces could fail to render properly
    because the interruption of rendering left a half-built entry in an internal
    cache.  (gxi12bit.c, gxicolor.c)
    	- Images with non-idempotent RasterOps in 1-component DeviceN color
    spaces didn't render properly, because the same pixel was rendered multiple
    times after a color remapping interruption.  (gximono.c)
    	- The fast case of masked images caused a crash if invoked without
    an imager state.  (gximono.c)
    	- Flushing buffered image data could cause coordinate bookkeeping
    to get out of sync.  (gxidata.c)
    	- ImageType 3, InterleaveType 2 images sometimes failed to render
    the last row.  (gximage3.c)
    	- The fix in 5.88 for resizing large objects had a bug itself.
    (gsalloc.c)
    	- Whan banding, if a client supplied more data than necessary for an
    image, the client was told (incorrectly) that all of the data was used.
    (fix from Artifex) (gxclimag.c)
    	- Null patterns caused a crash. (bug probably introduced by changes
    to support PatternType 2) (gspcolor.c)
    	- On hand-initialized memory devices where line_ptrs[0] != base,
    monobit RasterOps could cause invalid or stray memory accesses.  (gdevmr1.c)

    Removes an unnecessary variable.  (gdevppla.c, gsfont.c)

    Adds the ability to call a specified procedure when unregistering
    notification, needed for removing PDF font registrations.  (gsnotify.h,
    gsnotify.c)

    Updates the copyright year.  (gscdef.c)

    Copyright © 2000 Aladdin Enterprises.  All rights reserved.

    This file is part of AFPL Ghostscript.  See the
    Aladdin Free Public License (the "License") for
    full details of the terms of using, copying, modifying, and redistributing
    AFPL Ghostscript.

    Ghostscript version 6.50, 2 December 2000