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[deb_shairplay.git] / scons-tools / crossmingw64.py
1 """SCons.Tool.gcc
2
3 Tool-specific initialization for MinGW (http://www.mingw.org/)
4
5 There normally shouldn't be any need to import this module directly.
6 It will usually be imported through the generic SCons.Tool.Tool()
7 selection method.
8
9 """
10
11 #
12 # Copyright (c) 2001, 2002, 2003, 2004 The SCons Foundation
13 #
14 # Permission is hereby granted, free of charge, to any person obtaining
15 # a copy of this software and associated documentation files (the
16 # "Software"), to deal in the Software without restriction, including
17 # without limitation the rights to use, copy, modify, merge, publish,
18 # distribute, sublicense, and/or sell copies of the Software, and to
19 # permit persons to whom the Software is furnished to do so, subject to
20 # the following conditions:
21 #
22 # The above copyright notice and this permission notice shall be included
23 # in all copies or substantial portions of the Software.
24 #
25 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
26 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
27 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
29 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
30 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
31 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 #
33
34 __revision__ = "/home/scons/scons/branch.0/branch.96/baseline/src/engine/SCons/Tool/mingw.py 0.96.90.D001 2005/02/15 20:11:37 knight"
35
36 import os
37 import os.path
38 import string
39
40 import SCons.Action
41 import SCons.Builder
42 import SCons.Tool
43 import SCons.Util
44
45 # This is what we search for to find mingw:
46 prefixes = SCons.Util.Split("""
47 amd64-mingw32-
48 amd64-mingw32msvc-
49 x86_64-w64-mingw32-
50 """)
51
52 def find(env):
53 for prefix in prefixes:
54 # First search in the SCons path and then the OS path:
55 if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'):
56 return prefix
57
58 return ''
59
60 def shlib_generator(target, source, env, for_signature):
61 cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS'])
62
63 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
64 if dll: cmd.extend(['-o', dll])
65
66 cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS'])
67
68 implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX')
69 if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature))
70
71 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
72 if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature))
73
74 return [cmd]
75
76 def shlib_emitter(target, source, env):
77 dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
78 no_import_lib = env.get('no_import_lib', 0)
79
80 if not dll:
81 raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX")
82
83 if not no_import_lib and \
84 not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'):
85
86 # Append an import library to the list of targets.
87 target.append(env.ReplaceIxes(dll,
88 'SHLIBPREFIX', 'SHLIBSUFFIX',
89 'LIBPREFIX', 'LIBSUFFIX'))
90
91 # Append a def file target if there isn't already a def file target
92 # or a def file source. There is no option to disable def file
93 # target emitting, because I can't figure out why someone would ever
94 # want to turn it off.
95 def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
96 def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
97 if not def_source and not def_target:
98 target.append(env.ReplaceIxes(dll,
99 'SHLIBPREFIX', 'SHLIBSUFFIX',
100 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX'))
101
102 return (target, source)
103
104
105 shlib_action = SCons.Action.Action(shlib_generator, generator=1)
106
107 res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR')
108
109 res_builder = SCons.Builder.Builder(action=res_action, suffix='.o',
110 source_scanner=SCons.Tool.SourceFileScanner)
111 SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan)
112
113 def generate(env):
114 mingw_prefix = find(env)
115
116 if mingw_prefix:
117 dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc'))
118
119 # The mingw bin directory must be added to the path:
120 path = env['ENV'].get('PATH', [])
121 if not path:
122 path = []
123 if SCons.Util.is_String(path):
124 path = string.split(path, os.pathsep)
125
126 env['ENV']['PATH'] = string.join([dir] + path, os.pathsep)
127
128 # Most of mingw is the same as gcc and friends...
129 gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas']
130 for tool in gnu_tools:
131 SCons.Tool.Tool(tool)(env)
132
133 #... but a few things differ:
134 env['CC'] = mingw_prefix + 'gcc'
135 env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
136 env['CPP'] = mingw_prefix + 'g++'
137 env['CXX'] = mingw_prefix + 'g++'
138 env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS')
139 env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared')
140 env['SHLINKCOM'] = shlib_action
141 env.Append(SHLIBEMITTER = [shlib_emitter])
142 env['LINK_CC'] = mingw_prefix + 'gcc'
143 env['LINK_CXX'] = mingw_prefix + 'g++'
144 env['AS'] = mingw_prefix + 'as'
145 env['AR'] = mingw_prefix + 'ar'
146 env['RANLIB'] = mingw_prefix + 'ranlib'
147 env['WIN32DEFPREFIX'] = ''
148 env['WIN32DEFSUFFIX'] = '.def'
149 env['SHOBJSUFFIX'] = '.o'
150 env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1
151
152 env['RC'] = mingw_prefix + 'windres'
153 env['RCFLAGS'] = SCons.Util.CLVar('')
154 env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS ${INCPREFIX}${SOURCE.dir} $RCFLAGS -i $SOURCE -o $TARGET'
155 env['BUILDERS']['RES'] = res_builder
156
157 # Some setting from the platform also have to be overridden:
158 env['OBJPREFIX'] = ''
159 env['OBJSUFFIX'] = '.o'
160 env['SHOBJPREFIX'] = '$OBJPREFIX'
161 env['SHOBJSUFFIX'] = '$OBJSUFFIX'
162 env['PROGPREFIX'] = ''
163 env['PROGSUFFIX'] = '.exe'
164 env['LIBPREFIX'] = ''
165 env['LIBSUFFIX'] = '.lib'
166 env['SHLIBPREFIX'] = ''
167 env['SHLIBSUFFIX'] = '.dll'
168 env['LIBPREFIXES'] = [ '$LIBPREFIX' ]
169 env['LIBSUFFIXES'] = [ '$LIBSUFFIX' ]
170
171 def exists(env):
172 return find(env)