+++ /dev/null
-"""distutils.cygwinccompiler
-
-Provides the CygwinCCompiler class, a subclass of UnixCCompiler that
-handles the Cygwin port of the GNU C compiler to Windows. It also contains
-the Mingw32CCompiler class which handles the mingw32 port of GCC (same as
-cygwin in no-cygwin mode).
-"""
-
-# problems:
-#
-# * if you use a msvc compiled python version (1.5.2)
-# 1. you have to insert a __GNUC__ section in its config.h
-# 2. you have to generate a import library for its dll
-# - create a def-file for python??.dll
-# - create a import library using
-# dlltool --dllname python15.dll --def python15.def \
-# --output-lib libpython15.a
-#
-# see also http://starship.python.net/crew/kernr/mingw32/Notes.html
-#
-# * We put export_symbols in a def-file, and don't use
-# --export-all-symbols because it doesn't worked reliable in some
-# tested configurations. And because other windows compilers also
-# need their symbols specified this no serious problem.
-#
-# tested configurations:
-#
-# * cygwin gcc 2.91.57/ld 2.9.4/dllwrap 0.2.4 works
-# (after patching python's config.h and for C++ some other include files)
-# see also http://starship.python.net/crew/kernr/mingw32/Notes.html
-# * mingw32 gcc 2.95.2/ld 2.9.4/dllwrap 0.2.4 works
-# (ld doesn't support -shared, so we use dllwrap)
-# * cygwin gcc 2.95.2/ld 2.10.90/dllwrap 2.10.90 works now
-# - its dllwrap doesn't work, there is a bug in binutils 2.10.90
-# see also http://sources.redhat.com/ml/cygwin/2000-06/msg01274.html
-# - using gcc -mdll instead dllwrap doesn't work without -static because
-# it tries to link against dlls instead their import libraries. (If
-# it finds the dll first.)
-# By specifying -static we force ld to link against the import libraries,
-# this is windows standard and there are normally not the necessary symbols
-# in the dlls.
-# *** only the version of June 2000 shows these problems
-# * cygwin gcc 3.2/ld 2.13.90 works
-# (ld supports -shared)
-# * mingw gcc 3.2/ld 2.13 works
-# (ld supports -shared)
-
-# This module should be kept compatible with Python 1.5.2.
-
-__revision__ = "$Id$"
-
-import os,sys,copy
-from distutils.ccompiler import gen_preprocess_options, gen_lib_options
-from distutils.unixccompiler import UnixCCompiler
-from distutils.file_util import write_file
-from distutils.errors import DistutilsExecError, CompileError, UnknownFileError
-from distutils import log
-
-class CygwinCCompiler (UnixCCompiler):
-
- compiler_type = 'cygwin'
- obj_extension = ".o"
- static_lib_extension = ".a"
- shared_lib_extension = ".dll"
- static_lib_format = "lib%s%s"
- shared_lib_format = "%s%s"
- exe_extension = ".exe"
-
- def __init__ (self, verbose=0, dry_run=0, force=0):
-
- UnixCCompiler.__init__ (self, verbose, dry_run, force)
-
- (status, details) = check_config_h()
- self.debug_print("Python's GCC status: %s (details: %s)" %
- (status, details))
- if status is not CONFIG_H_OK:
- self.warn(
- "Python's pyconfig.h doesn't seem to support your compiler. "
- "Reason: %s. "
- "Compiling may fail because of undefined preprocessor macros."
- % details)
-
- self.gcc_version, self.ld_version, self.dllwrap_version = \
- get_versions()
- self.debug_print(self.compiler_type + ": gcc %s, ld %s, dllwrap %s\n" %
- (self.gcc_version,
- self.ld_version,
- self.dllwrap_version) )
-
- # ld_version >= "2.10.90" and < "2.13" should also be able to use
- # gcc -mdll instead of dllwrap
- # Older dllwraps had own version numbers, newer ones use the
- # same as the rest of binutils ( also ld )
- # dllwrap 2.10.90 is buggy
- if self.ld_version >= "2.10.90":
- self.linker_dll = "gcc"
- else:
- self.linker_dll = "dllwrap"
-
- # 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"
-
- # Hard-code GCC because that's what this is all about.
- # XXX optimization, warnings etc. should be customizable.
- self.set_executables(compiler='gcc -mcygwin -O -Wall',
- compiler_so='gcc -mcygwin -mdll -O -Wall',
- linker_exe='gcc -mcygwin',
- linker_so=('%s -mcygwin %s' %
- (self.linker_dll, shared_option)))
-
- # cygwin and mingw32 need different sets of libraries
- if self.gcc_version == "2.91.57":
- # cygwin shouldn't need msvcrt, but without the dlls will crash
- # (gcc version 2.91.57) -- perhaps something about initialization
- self.dll_libraries=["msvcrt"]
- self.warn(
- "Consider upgrading to a newer version of gcc")
- else:
- self.dll_libraries=[]
-
- # __init__ ()
-
-
- def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
- if ext == '.rc' or ext == '.res':
- # gcc needs '.res' and '.rc' compiled to object files !!!
- try:
- self.spawn(["windres", "-i", src, "-o", obj])
- except DistutilsExecError, msg:
- raise CompileError, msg
- else: # for other files use the C-compiler
- try:
- self.spawn(self.compiler_so + cc_args + [src, '-o', obj] +
- extra_postargs)
- except DistutilsExecError, msg:
- raise CompileError, msg
-
- def link (self,
- target_desc,
- objects,
- output_filename,
- output_dir=None,
- libraries=None,
- library_dirs=None,
- runtime_library_dirs=None,
- export_symbols=None,
- debug=0,
- extra_preargs=None,
- extra_postargs=None,
- build_temp=None,
- target_lang=None):
-
- # use separate copies, so we can modify the lists
- extra_preargs = copy.copy(extra_preargs or [])
- libraries = copy.copy(libraries or [])
- objects = copy.copy(objects or [])
-
- # Additional libraries
- libraries.extend(self.dll_libraries)
-
- # handle export symbols by creating a def-file
- # with executables this only works with gcc/ld as linker
- if ((export_symbols is not None) and
- (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")):
- # (The linker doesn't do anything if output is up-to-date.
- # So it would probably better to check if we really need this,
- # but for this we had to insert some unchanged parts of
- # UnixCCompiler, and this is not what we want.)
-
- # we want to put some files in the same directory as the
- # object files are, build_temp doesn't help much
- # where are the object files
- temp_dir = os.path.dirname(objects[0])
- # name of dll to give the helper files the same base name
- (dll_name, dll_extension) = os.path.splitext(
- os.path.basename(output_filename))
-
- # generate the filenames for these files
- def_file = os.path.join(temp_dir, dll_name + ".def")
- lib_file = os.path.join(temp_dir, 'lib' + dll_name + ".a")
-
- # Generate .def file
- contents = [
- "LIBRARY %s" % os.path.basename(output_filename),
- "EXPORTS"]
- for sym in export_symbols:
- contents.append(sym)
- self.execute(write_file, (def_file, contents),
- "writing %s" % def_file)
-
- # next add options for def-file and to creating import libraries
-
- # dllwrap uses different options than gcc/ld
- if self.linker_dll == "dllwrap":
- extra_preargs.extend(["--output-lib", lib_file])
- # for dllwrap we have to use a special option
- extra_preargs.extend(["--def", def_file])
- # we use gcc/ld here and can be sure ld is >= 2.9.10
- else:
- # doesn't work: bfd_close build\...\libfoo.a: Invalid operation
- #extra_preargs.extend(["-Wl,--out-implib,%s" % lib_file])
- # for gcc/ld the def-file is specified as any object files
- objects.append(def_file)
-
- #end: if ((export_symbols is not None) and
- # (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")):
-
- # who wants symbols and a many times larger output file
- # should explicitly switch the debug mode on
- # otherwise we let dllwrap/ld strip the output file
- # (On my machine: 10KB < stripped_file < ??100KB
- # unstripped_file = stripped_file + XXX KB
- # ( XXX=254 for a typical python extension))
- if not debug:
- extra_preargs.append("-s")
-
- UnixCCompiler.link(self,
- target_desc,
- objects,
- output_filename,
- output_dir,
- libraries,
- library_dirs,
- runtime_library_dirs,
- None, # export_symbols, we do this in our def-file
- debug,
- extra_preargs,
- extra_postargs,
- build_temp,
- target_lang)
-
- # link ()
-
- # -- Miscellaneous methods -----------------------------------------
-
- # overwrite the one from CCompiler to support rc and res-files
- def object_filenames (self,
- source_filenames,
- strip_dir=0,
- output_dir=''):
- if output_dir is None: output_dir = ''
- obj_names = []
- for src_name in source_filenames:
- # use normcase to make sure '.rc' is really '.rc' and not '.RC'
- (base, ext) = os.path.splitext (os.path.normcase(src_name))
- if ext not in (self.src_extensions + ['.rc','.res']):
- raise UnknownFileError, \
- "unknown file type '%s' (from '%s')" % \
- (ext, src_name)
- if strip_dir:
- base = os.path.basename (base)
- if ext == '.res' or ext == '.rc':
- # these need to be compiled to object files
- obj_names.append (os.path.join (output_dir,
- base + ext + self.obj_extension))
- else:
- obj_names.append (os.path.join (output_dir,
- base + self.obj_extension))
- return obj_names
-
- # object_filenames ()
-
-# class CygwinCCompiler
-
-
-# the same as cygwin plus some additional parameters
-class Mingw32CCompiler (CygwinCCompiler):
-
- compiler_type = 'mingw32'
-
- def __init__ (self,
- verbose=0,
- dry_run=0,
- force=0):
-
- 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 = ''
-
- self.set_executables(compiler='gcc -mno-cygwin -O -Wall',
- compiler_so='gcc -mno-cygwin -mdll -O -Wall',
- linker_exe='gcc -mno-cygwin',
- linker_so='%s -mno-cygwin %s %s'
- % (self.linker_dll, shared_option,
- entry_point))
- # 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
-
-# Because these compilers aren't configured in Python's pyconfig.h file by
-# default, we should at least warn the user if he is using a unmodified
-# version.
-
-CONFIG_H_OK = "ok"
-CONFIG_H_NOTOK = "not ok"
-CONFIG_H_UNCERTAIN = "uncertain"
-
-def check_config_h():
-
- """Check if the current Python installation (specifically, pyconfig.h)
- appears amenable to building extensions with GCC. Returns a tuple
- (status, details), where 'status' is one of the following constants:
- CONFIG_H_OK
- all is well, go ahead and compile
- CONFIG_H_NOTOK
- doesn't look good
- CONFIG_H_UNCERTAIN
- not sure -- unable to read pyconfig.h
- 'details' is a human-readable string explaining the situation.
-
- Note there are two ways to conclude "OK": either 'sys.version' contains
- the string "GCC" (implying that this Python was built with GCC), or the
- installed "pyconfig.h" contains the string "__GNUC__".
- """
-
- # XXX since this function also checks sys.version, it's not strictly a
- # "pyconfig.h" check -- should probably be renamed...
-
- from distutils import sysconfig
- import string
- # if sys.version contains GCC then python was compiled with
- # GCC, and the pyconfig.h file should be OK
- if string.find(sys.version,"GCC") >= 0:
- return (CONFIG_H_OK, "sys.version mentions 'GCC'")
-
- fn = sysconfig.get_config_h_filename()
- try:
- # It would probably better to read single lines to search.
- # But we do this only once, and it is fast enough
- f = open(fn)
- s = f.read()
- f.close()
-
- except IOError, exc:
- # if we can't read this file, we cannot say it is wrong
- # the compiler will complain later about this file as missing
- return (CONFIG_H_UNCERTAIN,
- "couldn't read '%s': %s" % (fn, exc.strerror))
-
- else:
- # "pyconfig.h" contains an "#ifdef __GNUC__" or something similar
- if string.find(s,"__GNUC__") >= 0:
- return (CONFIG_H_OK, "'%s' mentions '__GNUC__'" % fn)
- else:
- return (CONFIG_H_NOTOK, "'%s' does not mention '__GNUC__'" % fn)
-
-
-
-def 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('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('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('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)
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