    Copyright (C) 1989-2018 Free Software Foundation, Inc.

    Copying and distribution of this file, with or without
    modification, are permitted in any medium without royalty provided
    the copyright notice and this notice are preserved.

This is the GNU `groff' document formatting system.  The version
number is given in the file VERSION.

Included in this release are implementations of `troff', `pic', `eqn',
`tbl', `grn', `refer', `-man', `-mdoc', `-mom', and `-ms' macros, and
drivers for `PostScript', `PDF', `TeX DVI' format, `HP LaserJet 4'
printers, `Canon CAPSL' printers, `HTML' and `XHTML' formats (beta
status), and typewriter-like devices.  Also included is a modified
version of the Berkeley `-me' macros, the enhanced version `gxditview'
of the X11 `xditview' previewer, and an implementation of the `-mm'
macros contributed by Joergen Haegg.

See the file `INSTALL' for instructions on how to install from a
release.  You will require a C++ compiler.

The file `INSTALL.REPO' contains supplementary instructions for
building directly from a clone of the repository or a snapshot
tarball.

The file `NEWS' describes recent user-visible changes to `groff'.

`groff' is free software.  See the file `COPYING' for copying
permission.

The file `PROBLEMS' describes various problems that have been
encountered in compiling, installing, and running `groff'.

The file `MORE.STUFF' contains information about add-on packages
useful for `groff'.

The most recent released version of `groff' is always available by
anonymous ftp from `ftp.gnu.org' in the directory `gnu/groff'.

The current development version of `groff' is available from a git
repository at

  https://savannah.gnu.org/git/?group=groff

To view the git repository in your browser, go to

  http://git.savannah.gnu.org/cgit/groff.git

There you can also download snapshots; simply click on a commit entry
line to get the URL.

Depending on your requirements, you may need at least some of the
following tools to build `groff' directly from its source:

  perl >= v5.6.1 (see macro GROFF_PERL in file `m4/groff.m4')
  ghostscript
  the psutils package
  the netpbm package
  texinfo 4.8
  bison >= 1.875b or byacc

Note that `texinfo' and `bison' or `byacc' are required only for
building from repository sources (either a checked out working copy,
or a commit snapshot).  They are not required for building from a
stable release tarball.  Also note that the version numbers stated are
the minimum supported.  No version of `texinfo' < 4.8 works, and the
original release of `bison' 1.875 is known not to work; you *may* find
that `bison' releases < 1.875 work, but in case of difficulty, please
update to a later version *before* posting a bug report.

For *all* sources, you need `ghostscript' for creation of either `PDF'
or `HTML' output; the `netpbm' and `psutils' packages are required
only for `HTML' output (and for compilation from the repository).  If
you don't intend to produce output in either of these formats, then
these packages are unnecessary.

Additionally, producing `PDF' output directly with the `gropdf' device needs
a working installation of `perl'.  The same is true for some other
preprocessors like `chem'.

The `groff' configure script searches for the X11 headers and
libraries `Xaw' and `Xmu'.  So the corresponding developer packages of
your system must be installed, otherwise `groff' does not install
`gxditview' and the `-TX*' devices.  In Debian, the developer packages
are `libxaw7-dev' and `libxmu-dev'.

Please report bugs using the bug tracker available from the project
page at

  https://savannah.gnu.org/projects/groff

You may use the form in the file `BUG-REPORT'; the idea of this is to
make sure that FSF has all the information it needs to fix the bug.
At the very least, read the `BUG-REPORT' form and make sure that you
supply all the information that it asks for.  Even if you are not sure
that something is a bug, report it: this enables us to determine whether
it really is a bug.

Three mailing lists are available:

  bug-groff@gnu.org          for following bug reports
  groff@gnu.org              for general discussion of groff
  groff-commit@gnu.org       a read-only list to follow commits
                             to the git repository

To subscribe, send a mail to <list>-request@<domain> (example:
groff-request@gnu.org for the `groff' list) with the word `subscribe'
in either the subject or body of the e-mail (don't include the quotes).
Alternatively, you may subscribe by visiting the web pages at

  http://lists.gnu.org/mailman/listinfo/bug-groff
  http://lists.gnu.org/mailman/listinfo/groff
  http://lists.gnu.org/mailman/listinfo/groff-commit

Each of these web pages also provides a link to a browseable archive of
postings to the corresponding mailing list.

GNU `groff' was written by James Clark <jjc@jclark.com>.


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