Commit 15b92b09 authored by José Fonseca's avatar José Fonseca

scons: Support MinGW32 cross compiler.

To build an alternative opengl32.dll with Gallium's software-rasterizer from a
debian-based distribution run:

  sudo apt-get install mingw32
  scons platform=windows toolchain=crossmingw machine=x86 winsys=gdi dri=no
parent 59ae12b5
......@@ -59,6 +59,8 @@ def AddOptions(opts):
allowed_values=('generic', 'x86', 'x86_64')))
opts.Add(EnumOption('platform', 'target platform', default_platform,
allowed_values=('linux', 'cell', 'windows', 'winddk', 'wince')))
opts.Add(EnumOption('toolchain', 'compiler toolchain', 'default',
allowed_values=('default', 'crossmingw')))
opts.Add(BoolOption('llvm', 'use LLVM', 'no'))
opts.Add(BoolOption('dri', 'build DRI drivers', default_dri))
"""SCons.Tool.gcc
Tool-specific initialization for MinGW (http://www.mingw.org/)
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.
See also http://www.scons.org/wiki/CrossCompilingMingw
"""
#
# Copyright (c) 2001, 2002, 2003, 2004 The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
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-
mingw32msvc-
i386-mingw32-
i486-mingw32-
i586-mingw32-
i686-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)
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('$LINKFLAGS -shared')
env['SHLINKCOM'] = shlib_action
env.Append(SHLIBEMITTER = [shlib_emitter])
env['LINK'] = mingw_prefix + 'g++'
env['AR'] = mingw_prefix + 'ar'
env['RANLIB'] = mingw_prefix + 'ranlib'
env['LINK'] = mingw_prefix + 'g++'
env['AS'] = mingw_prefix + 'as'
env['WIN32DEFPREFIX'] = ''
env['WIN32DEFSUFFIX'] = '.def'
env['SHOBJSUFFIX'] = '.o'
env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1
env['RC'] = mingw_prefix + 'windres'
env['RCFLAGS'] = SCons.Util.CLVar('')
env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS ${INCPREFIX}${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' ]
env.AppendUnique(LIBS = ['iberty'])
env.AppendUnique(LINKFLAGS = ['-Wl,--enable-stdcall-fixup'])
def exists(env):
return find(env)
......@@ -170,21 +170,23 @@ def generate(env):
#if env.get('quiet', False):
# quietCommandLines(env)
# Toolchain
platform = env['platform']
if env['toolchain'] == 'default':
if platform == 'winddk':
env['toolchain'] == 'winddk'
elif platform == 'wince':
env.Tool('wcesdk')
env['toolchain'] == 'wcesdk'
env.Tool(env['toolchain'])
# shortcuts
debug = env['debug']
machine = env['machine']
platform = env['platform']
x86 = env['machine'] == 'x86'
gcc = env['platform'] in ('linux', 'freebsd', 'darwin')
msvc = env['platform'] in ('windows', 'winddk', 'wince')
# Tool
if platform == 'winddk':
env.Tool('winddk')
elif platform == 'wince':
env.Tool('wcesdk')
else:
env.Tool('default')
gcc = env['platform'] in ('linux', 'freebsd', 'darwin') or env['toolchain'] == 'crossmingw'
msvc = env['platform'] in ('windows', 'winddk', 'wince') and env['toolchain'] != 'crossmingw'
# Put build output in a separate dir, which depends on the current
# configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
......
......@@ -13,6 +13,12 @@ if env['platform'] == 'windows':
'#src/mesa/main',
])
env.Append(CPPDEFINES = [
'__GL_EXPORTS',
'BUILD_GL32',
'_GNU_H_WINDOWS32_DEFINES',
])
sources = [
'opengl32.def',
'wgl.c',
......
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