"""distutils.cygwinccompiler Provides the CygwinCCompiler class, a subclass of UnixCCompiler thathandles the Cygwin port of the GNU C compiler to Windows.  It also containsthe Mingw32CCompiler class which handles the mingw32 port of GCC (same ascygwin 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 2.1. __revision__ = "$Id: cygwinccompiler.py 37828 2004-11-10 22:23:15Z loewis $" import os,sys,copyfrom distutils.ccompiler import gen_preprocess_options, gen_lib_optionsfrom distutils.unixccompiler import UnixCCompilerfrom distutils.file_util import write_filefrom distutils.errors import DistutilsExecError, CompileError, UnknownFileErrorfrom 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',                             compiler_cxx='g++ -mcygwin -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=[]            # Include the appropriate MSVC runtime library if Python was built            # with MSVC 7.0 or 7.1.            msc_pos = sys.version.find('MSC v.')            if msc_pos != -1:                msc_ver = sys.version[msc_pos+6:msc_pos+10]                if msc_ver == '1300':                    # MSVC 7.0                    self.dll_libraries = ['msvcr70']                elif msc_ver == '1310':                    # MSVC 7.1                    self.dll_libraries = ['msvcr71']     # __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 parametersclass 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',                             compiler_cxx='g++ -mno-cygwin -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=[]         # Include the appropriate MSVC runtime library if Python was built        # with MSVC 7.0 or 7.1.        msc_pos = sys.version.find('MSC v.')        if msc_pos != -1:            msc_ver = sys.version[msc_pos+6:msc_pos+10]            if msc_ver == '1300':                # MSVC 7.0                self.dll_libraries = ['msvcr70']            elif msc_ver == '1310':                # MSVC 7.1                self.dll_libraries = ['msvcr71']     # __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)