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import os
import os.path
import string
import SCons.Action
import SCons.Builder
import SCons.Tool
import SCons.Util
# This is what we search for to find mingw:
prefixes = SCons.Util.Split("""
mingw32-
i386-mingw32msvc-
i486-mingw32msvc-
i586-mingw32msvc-
i686-mingw32msvc-
""")
def find(env):
for prefix in prefixes:
# First search in the SCons path and then the OS path:
if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'):
return prefix
return ''
def shlib_generator(target, source, env, for_signature):
cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS'])
dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
if dll: cmd.extend(['-o', dll])
cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS'])
implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX')
if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature))
def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature))
return [cmd]
def shlib_emitter(target, source, env):
dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
no_import_lib = env.get('no_import_lib', 0)
if not dll:
raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX")
if not no_import_lib and \
not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'):
# Append an import library to the list of targets.
target.append(env.ReplaceIxes(dll,
'SHLIBPREFIX', 'SHLIBSUFFIX',
'LIBPREFIX', 'LIBSUFFIX'))
# Append a def file target if there isn't already a def file target
# or a def file source. There is no option to disable def file
# target emitting, because I can't figure out why someone would ever
# want to turn it off.
def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
if not def_source and not def_target:
target.append(env.ReplaceIxes(dll,
'SHLIBPREFIX', 'SHLIBSUFFIX',
'WIN32DEFPREFIX', 'WIN32DEFSUFFIX'))
return (target, source)
# TODO: Backported to old scons version
#shlib_action = SCons.Action.CommandGenerator(shlib_generator)
shlib_action = SCons.Action.Action(shlib_generator,generator=1)
res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR')
res_builder = SCons.Builder.Builder(action=res_action, suffix='.o',
source_scanner=SCons.Tool.SourceFileScanner)
SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan)
def generate(env):
mingw_prefix = find(env)
if mingw_prefix:
dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc'))
# The mingw bin directory must be added to the path:
path = env['ENV'].get('PATH', [])
if not path:
path = []
if SCons.Util.is_String(path):
path = string.split(path, os.pathsep)
env['ENV']['PATH'] = string.join([dir] + path, os.pathsep)
# Most of mingw is the same as gcc and friends...
gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas']
for tool in gnu_tools:
SCons.Tool.Tool(tool)(env)
#... but a few things differ:
env['CC'] = mingw_prefix + 'gcc'
env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
env['CXX'] = mingw_prefix + 'g++'
env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS')
env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared')
env['SHLINKCOM'] = shlib_action
env.Append(SHLIBEMITTER = [shlib_emitter])
# This line isn't required and breaks C++ linking
#env['LINK'] = mingw_prefix + 'g++'
env['AS'] = mingw_prefix + 'as'
env['AR'] = mingw_prefix + 'ar'
env['RANLIB'] = mingw_prefix + 'ranlib'
env['WIN32DEFPREFIX'] = ''
env['WIN32DEFSUFFIX'] = '.def'
env['SHOBJSUFFIX'] = '.o'
env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1
env['RC'] = mingw_prefix + 'windres'
env['RCFLAGS'] = SCons.Util.CLVar('')
env['RCINCFLAGS'] = '$( ${_concat(RCINCPREFIX, CPPPATH, RCINCSUFFIX, __env__, RDirs, TARGET)} $)'
env['RCINCPREFIX'] = '--include-dir '
env['RCINCSUFFIX'] = ''
env['RCCOM'] = '$RC $RCINCFLAGS $RCINCPREFIX $SOURCE.dir $RCFLAGS -i $SOURCE -o $TARGET'
env['BUILDERS']['RES'] = res_builder
# Some setting from the platform also have to be overridden:
env['OBJPREFIX'] = ''
env['OBJSUFFIX'] = '.o'
env['LIBPREFIX'] = 'lib'
env['LIBSUFFIX'] = '.a'
env['SHOBJPREFIX'] = '$OBJPREFIX'
env['SHOBJSUFFIX'] = '$OBJSUFFIX'
env['PROGPREFIX'] = ''
env['PROGSUFFIX'] = '.exe'
env['LIBPREFIX'] = ''
env['LIBSUFFIX'] = '.lib'
env['SHLIBPREFIX'] = ''
env['SHLIBSUFFIX'] = '.dll'
env['LIBPREFIXES'] = [ '$LIBPREFIX' ]
env['LIBSUFFIXES'] = [ '$LIBSUFFIX' ]
def exists(env):
return find(env)
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