"""SCons.Tool.nasm

Tool-specific initialization for nasm, the famous Netwide Assembler.

There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.

"""

#
# Copyright (c) 2001 - 2014 The SCons Foundation
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# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
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# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
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__revision__ = "src/engine/SCons/Tool/nasm.py  2014/07/05 09:42:21 garyo"

import SCons.Defaults
import SCons.Tool
import SCons.Util

ASSuffixes = ['.s', '.asm', '.ASM']
ASPPSuffixes = ['.spp', '.SPP', '.sx']
if SCons.Util.case_sensitive_suffixes('.s', '.S'):
    ASPPSuffixes.extend(['.S'])
else:
    ASSuffixes.extend(['.S'])

def generate(env):
    """Add Builders and construction variables for nasm to an Environment."""
    static_obj, shared_obj = SCons.Tool.createObjBuilders(env)

    for suffix in ASSuffixes:
        static_obj.add_action(suffix, SCons.Defaults.ASAction)
        static_obj.add_emitter(suffix, SCons.Defaults.StaticObjectEmitter)

    for suffix in ASPPSuffixes:
        static_obj.add_action(suffix, SCons.Defaults.ASPPAction)
        static_obj.add_emitter(suffix, SCons.Defaults.StaticObjectEmitter)

    env['AS']        = 'nasm'
    env['ASFLAGS']   = SCons.Util.CLVar('')
    env['ASPPFLAGS'] = '$ASFLAGS'
    env['ASCOM']     = '$AS $ASFLAGS -o $TARGET $SOURCES'
    env['ASPPCOM']   = '$CC $ASPPFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -c -o $TARGET $SOURCES'

def exists(env):
    return env.Detect('nasm')

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