tools/crossmingw.py

   1 #coments are #JB where this file was altered by Jasen Betts
   2 # email:  'n@tres'.join(['jase','hna.com'])
   3
   4 """tools.crossmingw
   5
   6 Tool-specific initialization for MinGW (http://www.mingw.org/)
   7
   8 There normally shouldn't be any need to import this module directly.
   9 It will usually be imported through the generic SCons.Tool.Tool()
  10 selection method.
  11
  12 """
  13
  14 #
  15 # Copyright (c) 2001, 2002, 2003, 2004 The SCons Foundation
  16 #
  17 # Permission is hereby granted, free of charge, to any person obtaining
  18 # a copy of this software and associated documentation files (the
  19 # "Software"), to deal in the Software without restriction, including
  20 # without limitation the rights to use, copy, modify, merge, publish,
  21 # distribute, sublicense, and/or sell copies of the Software, and to
  22 # permit persons to whom the Software is furnished to do so, subject to
  23 # the following conditions:
  24 #
  25 # The above copyright notice and this permission notice shall be included
  26 # in all copies or substantial portions of the Software.
  27 #
  28 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  29 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  30 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  31 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  32 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  33 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  34 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  35 #
  36
  37 __revision__ = "/home/scons/scons/branch.0/branch.96/baseline/src/engine/SCons/Tool/mingw.py 0.96.91.D001 2005/09/08 09:14:36 knight"
  38
  39 import os
  40 import os.path
  41 import string
  42
  43 import SCons.Action
  44 import SCons.Builder
  45 import SCons.Tool
  46 import SCons.Util
  47
  48 # This is what we search for to find mingw:
  49 prefixes = SCons.Util.Split("""
  50     mingw32-
  51     i386-mingw32msvc-
  52     i486-mingw32msvc-
  53     i586-mingw32msvc-
  54     i686-mingw32msvc-
  55 """)
  56
  57 def find(env):
  58     for prefix in prefixes:
  59         # First search in the SCons path and then the OS path:
  60         if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'):
  61             return prefix
  62
  63     return ''
  64
  65 def shlib_generator(target, source, env, for_signature):
  66     cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS'])
  67
  68     dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
  69     if dll: cmd.extend(['-o', dll])
  70
  71     cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS'])
  72
  73     implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX')
  74     if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature))
  75
  76     def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
  77     if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature))
  78
  79     return [cmd]
  80
  81 def shlib_emitter(target, source, env):
  82     dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
  83     no_import_lib = env.get('no_import_lib', 0)
  84
  85     if not dll:
  86         raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX")
  87
  88     if not no_import_lib and \
  89        not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'):
  90
  91         # Append an import library to the list of targets.
  92         target.append(env.ReplaceIxes(dll,
  93                                       'SHLIBPREFIX', 'SHLIBSUFFIX',
  94                                       'LIBPREFIX', 'LIBSUFFIX'))
  95
  96     # Append a def file target if there isn't already a def file target
  97     # or a def file source. There is no option to disable def file
  98     # target emitting, because I can't figure out why someone would ever
  99     # want to turn it off.
 100     def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
 101     def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
 102     if not def_source and not def_target:
 103         target.append(env.ReplaceIxes(dll,
 104                                       'SHLIBPREFIX', 'SHLIBSUFFIX',
 105                                       'WIN32DEFPREFIX', 'WIN32DEFSUFFIX'))
 106
 107     return (target, source)
 108
 109 #JB  """ I'm blindly susbstuting lines from the mingw.py
 110 #JB      file becase these lines cause python errors here. """
 111 #JB shlib_action = SCons.Action.Action(shlib_generator,generator=1)
 112 shlib_action = SCons.Action.CommandGenerator(shlib_generator)
 113
 114 res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR')
 115
 116 #JB """ changed for what was in mingw.py """
 117 #JB res_builder = SCons.Builder.Builder(action=res_action, suffix='.o',
 118 #JB                                    source_scanner=SCons.Tool.SourceFileScanner)
 119
 120 res_builder = SCons.Builder.Builder(action='$RCCOM', suffix='.o',
 121                                     source_scanner=SCons.Defaults.ObjSourceScan)
 122
 123 #JB  SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan)
 124 SCons.Defaults.ObjSourceScan.add_scanner('.rc', SCons.Defaults.CScan)
 125 #JB """ no more changes """
 126
 127 def generate(env):
 128     mingw_prefix = find(env)
 129
 130     if mingw_prefix:
 131         dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc'))
 132
 133         # The mingw bin directory must be added to the path:
 134         path = env['ENV'].get('PATH', [])
 135         if not path:
 136             path = []
 137         if SCons.Util.is_String(path):
 138             path = string.split(path, os.pathsep)
 139
 140         env['ENV']['PATH'] = string.join([dir] + path, os.pathsep)
 141
 142     # Most of mingw is the same as gcc and friends...
 143     gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas']
 144     for tool in gnu_tools:
 145         SCons.Tool.Tool(tool)(env)
 146
 147     #... but a few things differ:
 148     env['CC'] = mingw_prefix + 'gcc'
 149     env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
 150     env['CXX'] = mingw_prefix + 'g++'
 151     env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS')
 152     env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared')
 153     env['SHLINKCOM']   = shlib_action
 154     env['AR'] = mingw_prefix + 'ar'
 155     env['RANLIB'] = mingw_prefix + 'ranlib'
 156     env.Append(SHLIBEMITTER = [shlib_emitter])
 157     env['LINK'] = mingw_prefix + 'gcc'
 158     env['AS'] = mingw_prefix + 'as'
 159     env['WIN32DEFPREFIX']        = ''
 160     env['WIN32DEFSUFFIX']        = '.def'
 161     env['SHOBJSUFFIX'] = '.o'
 162     env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1
 163
 164     env['RC'] = mingw_prefix + 'windres'
 165     env['RCFLAGS'] = SCons.Util.CLVar('')
 166     env['RCINCFLAGS'] = '$( ${_concat(RCINCPREFIX, CPPPATH, RCINCSUFFIX, __env__, RDirs, TARGET)} $)'
 167     env['RCINCPREFIX'] = '--include-dir '
 168     env['RCINCSUFFIX'] = ''
 169     env['RCCOM'] = '$RC $RCINCFLAGS $RCINCPREFIX $SOURCE.dir $RCFLAGS -i $SOURCE -o $TARGET'
 170     env['BUILDERS']['RES'] = res_builder
 171
 172     # Some setting from the platform also have to be overridden:
 173     env['OBJPREFIX']      = ''
 174     env['OBJSUFFIX']      = '.o'
 175     env['LIBPREFIX']      = 'lib'
 176     env['LIBSUFFIX']      = '.a'
 177     env['SHOBJPREFIX']    = '$OBJPREFIX'
 178     env['SHOBJSUFFIX']    = '$OBJSUFFIX'
 179     env['PROGPREFIX']     = ''
 180     env['PROGSUFFIX']     = '.exe'
 181     env['LIBPREFIX']      = ''
 182     env['LIBSUFFIX']      = '.lib'
 183     env['SHLIBPREFIX']    = ''
 184     env['SHLIBSUFFIX']    = '.dll'
 185     env['LIBPREFIXES']    = [ '$LIBPREFIX' ]
 186     env['LIBSUFFIXES']    = [ '$LIBSUFFIX' ]
 187
 188 def exists(env):
 189     return find(env)