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# Utilities to cross-compile for Windows on a Debian box
# with the mingw32 cross-compiler installed.
# This is probably extremely brittle wrt new versions of distutils,
# since all of this is just monkey-patched in. Here's hoping that
# someday distutils will be replaced.
# To use, specify the mingw32_cross compiler to distutils:
#
# python setup.py --compiler=mingw32_cross
import os
import sys
if sys.hexversion < 0x2050000:
print "Cross-compiling has only been tested with Python 2.5. Your "
print "results may vary."
# Fool our own scripts that decide what to build
sys.platform = 'cygwin'
from distutils import cygwinccompiler, util, ccompiler
from distutils.command import build_ext, bdist_wininst
if sys.version_info[2] == 0:
LATEST_PYTHON_RELEASE = "%d.%d" % tuple(sys.version_info[:2])
else:
LATEST_PYTHON_RELEASE = "%d.%d.%d" % tuple(sys.version_info[:3])
PYTHON_LIB = "python%d%d" % tuple(sys.version_info[:2])
PYTHON_WIN32 = "python-win32-%s" % LATEST_PYTHON_RELEASE
prefix = 'i686-pc-mingw32-'
os.environ['CC'] = '%sgcc' % prefix
os.environ['CXX'] = '%sg++' % prefix
os.environ['LD'] = '%sld' % prefix
os.environ['LDFLAGS'] = '-L./%s/dll/ -l%s' % (
PYTHON_WIN32, PYTHON_LIB)
os.environ['CFLAGS'] = '-I./%s/' % PYTHON_WIN32
os.environ['CXXFLAGS'] = '-I./%s/' % PYTHON_WIN32
if os.system(os.environ['CC'] + " --version") != 0:
print "It does not appear that you have the mingw32 cross compiler"
print "installed. On Debian use:"
print " sudo apt-get install mingw32"
sys.exit(1)
if not os.path.exists(PYTHON_WIN32) or not os.path.isdir(PYTHON_WIN32):
os.mkdir(PYTHON_WIN32)
os.chdir(PYTHON_WIN32)
if (os.system("wget http://python.org/ftp/python/%s/python-%s.msi" %
(LATEST_PYTHON_RELEASE, LATEST_PYTHON_RELEASE)) != 0):
print "Error getting Python Windows distribution"
sys.exit(1)
if (os.system("cabextract python-%s.msi" % LATEST_PYTHON_RELEASE) != 0):
print "Error extracting Python Windows dist. Do you have cabextract installed?"
sys.exit(1)
os.mkdir("dll")
os.rename("%s.dll" % PYTHON_LIB, "dll/%s.dll" % PYTHON_LIB)
os.chdir("..")
def monkey_patch_get_platform():
return 'win32'
util.get_platform = monkey_patch_get_platform
def monkey_patch_get_versions():
""" Try to find out the versions of gcc, ld and dllwrap.
If not possible it returns None for it.
"""
from distutils.version import StrictVersion
from distutils.spawn import find_executable
import re
gcc_exe = find_executable(os.environ.get('CC') or 'gcc')
if gcc_exe:
out = os.popen(gcc_exe + ' -dumpversion','r')
out_string = out.read()
out.close()
result = re.search('(\d+\.\d+(\.\d+)*)',out_string)
if result:
gcc_version = StrictVersion(result.group(1))
else:
gcc_version = None
else:
gcc_version = None
ld_exe = find_executable(os.environ.get('LD') or 'ld')
if ld_exe:
out = os.popen(ld_exe + ' -v','r')
out_string = out.read()
out.close()
result = re.search('(\d+\.\d+(\.\d+)*)',out_string)
if result:
ld_version = StrictVersion(result.group(1))
else:
ld_version = None
else:
ld_version = None
dllwrap_exe = find_executable(os.environ.get('DLLWRAP') or 'dllwrap')
if dllwrap_exe:
out = os.popen(dllwrap_exe + ' --version','r')
out_string = out.read()
out.close()
result = re.search(' (\d+\.\d+(\.\d+)*)',out_string)
if result:
dllwrap_version = StrictVersion(result.group(1))
else:
dllwrap_version = None
else:
dllwrap_version = None
return (gcc_version, ld_version, dllwrap_version)
cygwinccompiler.get_versions = monkey_patch_get_versions
# the same as cygwin plus some additional parameters
class Mingw32CrossCCompiler (cygwinccompiler.CygwinCCompiler):
compiler_type = 'mingw32'
def __init__ (self,
verbose=0,
dry_run=0,
force=0):
cygwinccompiler.CygwinCCompiler.__init__ (self, verbose, dry_run, force)
# ld_version >= "2.13" support -shared so use it instead of
# -mdll -static
if self.ld_version >= "2.13":
shared_option = "-shared"
else:
shared_option = "-mdll -static"
# A real mingw32 doesn't need to specify a different entry point,
# but cygwin 2.91.57 in no-cygwin-mode needs it.
if self.gcc_version <= "2.91.57":
entry_point = '--entry _DllMain@12'
else:
entry_point = ''
gcc = os.environ.get('CC') or 'gcc'
so = os.environ.get('CC') or 'gcc'
cxx = os.environ.get('CXX') or 'g++'
linker_exe = os.environ.get('CC') or 'gcc'
linker_dll = os.environ.get('CC') or 'gcc'
cflags = os.environ.get('CFLAGS') or ''
cxxflags = os.environ.get('CXXFLAGS') or ''
ldflags = os.environ.get('LDFLAGS') or ''
self.set_executables(compiler='%s -mno-cygwin -O -Wall -static-libgcc %s' % (gcc, cflags),
compiler_so='%s -mno-cygwin -mdll -O -Wall -static-libgcc %s' % (so, cflags),
compiler_cxx='%s -mno-cygwin -O -Wall -static-libgcc %s' % (cxx, cxxflags),
linker_exe='%s -mno-cygwin -static-libgcc' % linker_exe,
linker_so='%s -mno-cygwin %s %s %s -static-libgcc'
% (linker_dll, shared_option,
entry_point, ldflags))
# Maybe we should also append -mthreads, but then the finished
# dlls need another dll (mingwm10.dll see Mingw32 docs)
# (-mthreads: Support thread-safe exception handling on `Mingw32')
# no additional libraries needed
self.dll_libraries=[]
# __init__ ()
# class Mingw32CCompiler
cygwinccompiler.Mingw32CCompiler = Mingw32CrossCCompiler
_build_extension = build_ext.build_ext.build_extension
def monkey_patch_build_extension(self, ext):
_build_extension(self, ext)
fullname = self.get_ext_fullname(ext.name)
if self.inplace:
# ignore build-lib -- put the compiled extension into
# the source tree along with pure Python modules
modpath = fullname.split('.')
package = ".".join(modpath[0:-1])
base = modpath[-1]
build_py = self.get_finalized_command('build_py')
package_dir = build_py.get_package_dir(package)
ext_filename = os.path.join(package_dir,
self.get_ext_filename(base))
else:
ext_filename = os.path.join(self.build_lib,
self.get_ext_filename(fullname))
os.rename(ext_filename, ext_filename[:-2] + "pyd")
build_ext.build_ext.build_extension = monkey_patch_build_extension
_bdist_wininst_run = bdist_wininst.bdist_wininst.run
def monkey_patch_bdist_wininst_run(self):
real_platform = sys.platform
real_os_name = os.name
sys.platform = 'win32'
os.name = 'nt'
_bdist_wininst_run(self)
sys.platform = real_platform
os.name = real_os_name
bdist_wininst.bdist_wininst.run = monkey_patch_bdist_wininst_run
def get_exe_bytes (self):
# wininst-x.y.exe is in the same directory as this file
directory = os.path.dirname(bdist_wininst.__file__)
# we must use a wininst-x.y.exe built with the same C compiler
# used for python. XXX What about mingw, borland, and so on?
filename = os.path.join(directory, "wininst-9.0.exe")
return open(filename, "rb").read()
bdist_wininst.bdist_wininst.get_exe_bytes = get_exe_bytes
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