2006-01-31 23:09:52 +00:00
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"""SCons.Tool.m4
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Tool-specific initialization for m4.
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There normally shouldn't be any need to import this module directly.
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It will usually be imported through the generic SCons.Tool.Tool()
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selection method.
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"""
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#
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2007-08-07 15:50:34 +00:00
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# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007 The SCons Foundation
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2006-01-31 23:09:52 +00:00
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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2007-08-07 15:50:34 +00:00
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__revision__ = "/home/scons/scons/branch.0/baseline/src/engine/SCons/Tool/m4.py 0.97.D001 2007/05/17 11:35:19 knight"
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2006-01-31 23:09:52 +00:00
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2007-08-07 15:50:34 +00:00
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import SCons.Action
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2006-01-31 23:09:52 +00:00
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import SCons.Builder
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import SCons.Util
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def generate(env):
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"""Add Builders and construction variables for m4 to an Environment."""
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2007-08-07 15:50:34 +00:00
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M4Action = SCons.Action.Action('$M4COM', '$M4COMSTR')
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bld = SCons.Builder.Builder(action = M4Action, src_suffix = '.m4')
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2006-01-31 23:09:52 +00:00
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env['BUILDERS']['M4'] = bld
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# .m4 files might include other files, and it would be pretty hard
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# to write a scanner for it, so let's just cd to the dir of the m4
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# file and run from there.
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# The src_suffix setup is like so: file.c.m4 -> file.c,
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# file.cpp.m4 -> file.cpp etc.
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env['M4'] = 'm4'
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env['M4FLAGS'] = SCons.Util.CLVar('-E')
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env['M4COM'] = 'cd ${SOURCE.rsrcdir} && $M4 $M4FLAGS < ${SOURCE.file} > ${TARGET.abspath}'
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def exists(env):
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return env.Detect('m4')
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