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			786 lines
		
	
	
	
		
			32 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			786 lines
		
	
	
	
		
			32 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
"""distutils.command.build_ext
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						|
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Implements the Distutils 'build_ext' command, for building extension
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modules (currently limited to C extensions, should accommodate C++
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						|
extensions ASAP)."""
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						|
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__revision__ = "$Id$"
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import sys, os, string, re
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from types import *
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from distutils.core import Command
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from distutils.errors import *
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from distutils.sysconfig import customize_compiler, get_python_version
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from distutils.dep_util import newer_group
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from distutils.extension import Extension
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from distutils.util import get_platform
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from distutils import log
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# this keeps compatibility from 2.3 to 2.5
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if sys.version < "2.6":
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    USER_BASE = None
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    HAS_USER_SITE = False
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else:
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    from site import USER_BASE
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    HAS_USER_SITE = True
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if os.name == 'nt':
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    from distutils.msvccompiler import get_build_version
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    MSVC_VERSION = int(get_build_version())
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# An extension name is just a dot-separated list of Python NAMEs (ie.
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# the same as a fully-qualified module name).
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extension_name_re = re.compile \
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    (r'^[a-zA-Z_][a-zA-Z_0-9]*(\.[a-zA-Z_][a-zA-Z_0-9]*)*$')
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def show_compilers ():
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    from distutils.ccompiler import show_compilers
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    show_compilers()
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class build_ext (Command):
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    description = "build C/C++ extensions (compile/link to build directory)"
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    # XXX thoughts on how to deal with complex command-line options like
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						|
    # these, i.e. how to make it so fancy_getopt can suck them off the
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						|
    # command line and make it look like setup.py defined the appropriate
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						|
    # lists of tuples of what-have-you.
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						|
    #   - each command needs a callback to process its command-line options
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    #   - Command.__init__() needs access to its share of the whole
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						|
    #     command line (must ultimately come from
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						|
    #     Distribution.parse_command_line())
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    #   - it then calls the current command class' option-parsing
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    #     callback to deal with weird options like -D, which have to
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    #     parse the option text and churn out some custom data
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    #     structure
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    #   - that data structure (in this case, a list of 2-tuples)
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    #     will then be present in the command object by the time
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    #     we get to finalize_options() (i.e. the constructor
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    #     takes care of both command-line and client options
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    #     in between initialize_options() and finalize_options())
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    sep_by = " (separated by '%s')" % os.pathsep
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    user_options = [
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        ('build-lib=', 'b',
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         "directory for compiled extension modules"),
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        ('build-temp=', 't',
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         "directory for temporary files (build by-products)"),
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        ('plat-name=', 'p',
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         "platform name to cross-compile for, if supported "
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         "(default: %s)" % get_platform()),
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        ('inplace', 'i',
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         "ignore build-lib and put compiled extensions into the source " +
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         "directory alongside your pure Python modules"),
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        ('include-dirs=', 'I',
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         "list of directories to search for header files" + sep_by),
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        ('define=', 'D',
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         "C preprocessor macros to define"),
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        ('undef=', 'U',
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         "C preprocessor macros to undefine"),
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        ('libraries=', 'l',
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         "external C libraries to link with"),
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        ('library-dirs=', 'L',
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         "directories to search for external C libraries" + sep_by),
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						|
        ('rpath=', 'R',
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						|
         "directories to search for shared C libraries at runtime"),
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        ('link-objects=', 'O',
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         "extra explicit link objects to include in the link"),
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        ('debug', 'g',
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         "compile/link with debugging information"),
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        ('force', 'f',
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         "forcibly build everything (ignore file timestamps)"),
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        ('compiler=', 'c',
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         "specify the compiler type"),
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        ('swig-cpp', None,
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         "make SWIG create C++ files (default is C)"),
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        ('swig-opts=', None,
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         "list of SWIG command line options"),
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        ('swig=', None,
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         "path to the SWIG executable"),
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        ]
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    boolean_options = ['inplace', 'debug', 'force', 'swig-cpp']
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    if HAS_USER_SITE:
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        user_options.append(('user', None,
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                             "add user include, library and rpath"))
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        boolean_options.append('user')
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    help_options = [
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        ('help-compiler', None,
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         "list available compilers", show_compilers),
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        ]
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    def initialize_options (self):
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        self.extensions = None
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        self.build_lib = None
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        self.plat_name = None
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        self.build_temp = None
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        self.inplace = 0
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        self.package = None
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        self.include_dirs = None
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        self.define = None
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        self.undef = None
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        self.libraries = None
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        self.library_dirs = None
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        self.rpath = None
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        self.link_objects = None
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        self.debug = None
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        self.force = None
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        self.compiler = None
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        self.swig = None
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        self.swig_cpp = None
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        self.swig_opts = None
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        self.user = None
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    def finalize_options (self):
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        from distutils import sysconfig
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        self.set_undefined_options('build',
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                                   ('build_lib', 'build_lib'),
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                                   ('build_temp', 'build_temp'),
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                                   ('compiler', 'compiler'),
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                                   ('debug', 'debug'),
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                                   ('force', 'force'),
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                                   ('plat_name', 'plat_name'),
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                                   )
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        if self.package is None:
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            self.package = self.distribution.ext_package
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        self.extensions = self.distribution.ext_modules
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        # Make sure Python's include directories (for Python.h, pyconfig.h,
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        # etc.) are in the include search path.
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        py_include = sysconfig.get_python_inc()
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        plat_py_include = sysconfig.get_python_inc(plat_specific=1)
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        if self.include_dirs is None:
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            self.include_dirs = self.distribution.include_dirs or []
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        if type(self.include_dirs) is StringType:
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            self.include_dirs = string.split(self.include_dirs, os.pathsep)
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        # Put the Python "system" include dir at the end, so that
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        # any local include dirs take precedence.
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        self.include_dirs.append(py_include)
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        if plat_py_include != py_include:
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            self.include_dirs.append(plat_py_include)
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        if type(self.libraries) is StringType:
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            self.libraries = [self.libraries]
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        # Life is easier if we're not forever checking for None, so
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        # simplify these options to empty lists if unset
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        if self.libraries is None:
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            self.libraries = []
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        if self.library_dirs is None:
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            self.library_dirs = []
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        elif type(self.library_dirs) is StringType:
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            self.library_dirs = string.split(self.library_dirs, os.pathsep)
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        if self.rpath is None:
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            self.rpath = []
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        elif type(self.rpath) is StringType:
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            self.rpath = string.split(self.rpath, os.pathsep)
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        # for extensions under windows use different directories
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        # for Release and Debug builds.
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						|
        # also Python's library directory must be appended to library_dirs
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        if os.name == 'nt':
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            # the 'libs' directory is for binary installs - we assume that
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            # must be the *native* platform.  But we don't really support
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            # cross-compiling via a binary install anyway, so we let it go.
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            self.library_dirs.append(os.path.join(sys.exec_prefix, 'libs'))
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            if self.debug:
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                self.build_temp = os.path.join(self.build_temp, "Debug")
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            else:
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                self.build_temp = os.path.join(self.build_temp, "Release")
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            # Append the source distribution include and library directories,
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            # this allows distutils on windows to work in the source tree
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            self.include_dirs.append(os.path.join(sys.exec_prefix, 'PC'))
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            if MSVC_VERSION == 9:
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                # Use the .lib files for the correct architecture
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                if self.plat_name == 'win32':
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                    suffix = ''
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                else:
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                    # win-amd64 or win-ia64
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                    suffix = self.plat_name[4:]
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                new_lib = os.path.join(sys.exec_prefix, 'PCbuild')
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						|
                if suffix:
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                    new_lib = os.path.join(new_lib, suffix)
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                self.library_dirs.append(new_lib)
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						|
            elif MSVC_VERSION == 8:
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                self.library_dirs.append(os.path.join(sys.exec_prefix,
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                                         'PC', 'VS8.0', 'win32release'))
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            elif MSVC_VERSION == 7:
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                self.library_dirs.append(os.path.join(sys.exec_prefix,
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                                         'PC', 'VS7.1'))
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						|
            else:
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                self.library_dirs.append(os.path.join(sys.exec_prefix,
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                                         'PC', 'VC6'))
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						|
        # OS/2 (EMX) doesn't support Debug vs Release builds, but has the
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        # import libraries in its "Config" subdirectory
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						|
        if os.name == 'os2':
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            self.library_dirs.append(os.path.join(sys.exec_prefix, 'Config'))
 | 
						|
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						|
        # for extensions under Cygwin and AtheOS Python's library directory must be
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        # appended to library_dirs
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						|
        if sys.platform[:6] == 'cygwin' or sys.platform[:6] == 'atheos':
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						|
            if sys.executable.startswith(os.path.join(sys.exec_prefix, "bin")):
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						|
                # building third party extensions
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                self.library_dirs.append(os.path.join(sys.prefix, "lib",
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                                                      "python" + get_python_version(),
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                                                      "config"))
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						|
            else:
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                # building python standard extensions
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                self.library_dirs.append('.')
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						|
 | 
						|
        # for extensions under Linux or Solaris with a shared Python library,
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						|
        # Python's library directory must be appended to library_dirs
 | 
						|
        sysconfig.get_config_var('Py_ENABLE_SHARED')
 | 
						|
        if ((sys.platform.startswith('linux') or sys.platform.startswith('gnu')
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						|
             or sys.platform.startswith('sunos'))
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						|
            and sysconfig.get_config_var('Py_ENABLE_SHARED')):
 | 
						|
            if sys.executable.startswith(os.path.join(sys.exec_prefix, "bin")):
 | 
						|
                # building third party extensions
 | 
						|
                self.library_dirs.append(sysconfig.get_config_var('LIBDIR'))
 | 
						|
            else:
 | 
						|
                # building python standard extensions
 | 
						|
                self.library_dirs.append('.')
 | 
						|
 | 
						|
        # The argument parsing will result in self.define being a string, but
 | 
						|
        # it has to be a list of 2-tuples.  All the preprocessor symbols
 | 
						|
        # specified by the 'define' option will be set to '1'.  Multiple
 | 
						|
        # symbols can be separated with commas.
 | 
						|
 | 
						|
        if self.define:
 | 
						|
            defines = string.split(self.define, ',')
 | 
						|
            self.define = map(lambda symbol: (symbol, '1'), defines)
 | 
						|
 | 
						|
        # The option for macros to undefine is also a string from the
 | 
						|
        # option parsing, but has to be a list.  Multiple symbols can also
 | 
						|
        # be separated with commas here.
 | 
						|
        if self.undef:
 | 
						|
            self.undef = string.split(self.undef, ',')
 | 
						|
 | 
						|
        if self.swig_opts is None:
 | 
						|
            self.swig_opts = []
 | 
						|
        else:
 | 
						|
            self.swig_opts = self.swig_opts.split(' ')
 | 
						|
 | 
						|
        # Finally add the user include and library directories if requested
 | 
						|
        if self.user:
 | 
						|
            user_include = os.path.join(USER_BASE, "include")
 | 
						|
            user_lib = os.path.join(USER_BASE, "lib")
 | 
						|
            if os.path.isdir(user_include):
 | 
						|
                self.include_dirs.append(user_include)
 | 
						|
            if os.path.isdir(user_lib):
 | 
						|
                self.library_dirs.append(user_lib)
 | 
						|
                self.rpath.append(user_lib)
 | 
						|
 | 
						|
    # finalize_options ()
 | 
						|
 | 
						|
 | 
						|
    def run (self):
 | 
						|
 | 
						|
        from distutils.ccompiler import new_compiler
 | 
						|
 | 
						|
        # 'self.extensions', as supplied by setup.py, is a list of
 | 
						|
        # Extension instances.  See the documentation for Extension (in
 | 
						|
        # distutils.extension) for details.
 | 
						|
        #
 | 
						|
        # For backwards compatibility with Distutils 0.8.2 and earlier, we
 | 
						|
        # also allow the 'extensions' list to be a list of tuples:
 | 
						|
        #    (ext_name, build_info)
 | 
						|
        # where build_info is a dictionary containing everything that
 | 
						|
        # Extension instances do except the name, with a few things being
 | 
						|
        # differently named.  We convert these 2-tuples to Extension
 | 
						|
        # instances as needed.
 | 
						|
 | 
						|
        if not self.extensions:
 | 
						|
            return
 | 
						|
 | 
						|
        # If we were asked to build any C/C++ libraries, make sure that the
 | 
						|
        # directory where we put them is in the library search path for
 | 
						|
        # linking extensions.
 | 
						|
        if self.distribution.has_c_libraries():
 | 
						|
            build_clib = self.get_finalized_command('build_clib')
 | 
						|
            self.libraries.extend(build_clib.get_library_names() or [])
 | 
						|
            self.library_dirs.append(build_clib.build_clib)
 | 
						|
 | 
						|
        # Setup the CCompiler object that we'll use to do all the
 | 
						|
        # compiling and linking
 | 
						|
        self.compiler = new_compiler(compiler=self.compiler,
 | 
						|
                                     verbose=self.verbose,
 | 
						|
                                     dry_run=self.dry_run,
 | 
						|
                                     force=self.force)
 | 
						|
        customize_compiler(self.compiler)
 | 
						|
        # If we are cross-compiling, init the compiler now (if we are not
 | 
						|
        # cross-compiling, init would not hurt, but people may rely on
 | 
						|
        # late initialization of compiler even if they shouldn't...)
 | 
						|
        if os.name == 'nt' and self.plat_name != get_platform():
 | 
						|
            self.compiler.initialize(self.plat_name)
 | 
						|
 | 
						|
        # And make sure that any compile/link-related options (which might
 | 
						|
        # come from the command-line or from the setup script) are set in
 | 
						|
        # that CCompiler object -- that way, they automatically apply to
 | 
						|
        # all compiling and linking done here.
 | 
						|
        if self.include_dirs is not None:
 | 
						|
            self.compiler.set_include_dirs(self.include_dirs)
 | 
						|
        if self.define is not None:
 | 
						|
            # 'define' option is a list of (name,value) tuples
 | 
						|
            for (name,value) in self.define:
 | 
						|
                self.compiler.define_macro(name, value)
 | 
						|
        if self.undef is not None:
 | 
						|
            for macro in self.undef:
 | 
						|
                self.compiler.undefine_macro(macro)
 | 
						|
        if self.libraries is not None:
 | 
						|
            self.compiler.set_libraries(self.libraries)
 | 
						|
        if self.library_dirs is not None:
 | 
						|
            self.compiler.set_library_dirs(self.library_dirs)
 | 
						|
        if self.rpath is not None:
 | 
						|
            self.compiler.set_runtime_library_dirs(self.rpath)
 | 
						|
        if self.link_objects is not None:
 | 
						|
            self.compiler.set_link_objects(self.link_objects)
 | 
						|
 | 
						|
        # Now actually compile and link everything.
 | 
						|
        self.build_extensions()
 | 
						|
 | 
						|
    # run ()
 | 
						|
 | 
						|
 | 
						|
    def check_extensions_list (self, extensions):
 | 
						|
        """Ensure that the list of extensions (presumably provided as a
 | 
						|
        command option 'extensions') is valid, i.e. it is a list of
 | 
						|
        Extension objects.  We also support the old-style list of 2-tuples,
 | 
						|
        where the tuples are (ext_name, build_info), which are converted to
 | 
						|
        Extension instances here.
 | 
						|
 | 
						|
        Raise DistutilsSetupError if the structure is invalid anywhere;
 | 
						|
        just returns otherwise.
 | 
						|
        """
 | 
						|
        if type(extensions) is not ListType:
 | 
						|
            raise DistutilsSetupError, \
 | 
						|
                  "'ext_modules' option must be a list of Extension instances"
 | 
						|
 | 
						|
        for i in range(len(extensions)):
 | 
						|
            ext = extensions[i]
 | 
						|
            if isinstance(ext, Extension):
 | 
						|
                continue                # OK! (assume type-checking done
 | 
						|
                                        # by Extension constructor)
 | 
						|
 | 
						|
            (ext_name, build_info) = ext
 | 
						|
            log.warn(("old-style (ext_name, build_info) tuple found in "
 | 
						|
                      "ext_modules for extension '%s'"
 | 
						|
                      "-- please convert to Extension instance" % ext_name))
 | 
						|
            if type(ext) is not TupleType and len(ext) != 2:
 | 
						|
                raise DistutilsSetupError, \
 | 
						|
                      ("each element of 'ext_modules' option must be an "
 | 
						|
                       "Extension instance or 2-tuple")
 | 
						|
 | 
						|
            if not (type(ext_name) is StringType and
 | 
						|
                    extension_name_re.match(ext_name)):
 | 
						|
                raise DistutilsSetupError, \
 | 
						|
                      ("first element of each tuple in 'ext_modules' "
 | 
						|
                       "must be the extension name (a string)")
 | 
						|
 | 
						|
            if type(build_info) is not DictionaryType:
 | 
						|
                raise DistutilsSetupError, \
 | 
						|
                      ("second element of each tuple in 'ext_modules' "
 | 
						|
                       "must be a dictionary (build info)")
 | 
						|
 | 
						|
            # OK, the (ext_name, build_info) dict is type-safe: convert it
 | 
						|
            # to an Extension instance.
 | 
						|
            ext = Extension(ext_name, build_info['sources'])
 | 
						|
 | 
						|
            # Easy stuff: one-to-one mapping from dict elements to
 | 
						|
            # instance attributes.
 | 
						|
            for key in ('include_dirs',
 | 
						|
                        'library_dirs',
 | 
						|
                        'libraries',
 | 
						|
                        'extra_objects',
 | 
						|
                        'extra_compile_args',
 | 
						|
                        'extra_link_args'):
 | 
						|
                val = build_info.get(key)
 | 
						|
                if val is not None:
 | 
						|
                    setattr(ext, key, val)
 | 
						|
 | 
						|
            # Medium-easy stuff: same syntax/semantics, different names.
 | 
						|
            ext.runtime_library_dirs = build_info.get('rpath')
 | 
						|
            if 'def_file' in build_info:
 | 
						|
                log.warn("'def_file' element of build info dict "
 | 
						|
                         "no longer supported")
 | 
						|
 | 
						|
            # Non-trivial stuff: 'macros' split into 'define_macros'
 | 
						|
            # and 'undef_macros'.
 | 
						|
            macros = build_info.get('macros')
 | 
						|
            if macros:
 | 
						|
                ext.define_macros = []
 | 
						|
                ext.undef_macros = []
 | 
						|
                for macro in macros:
 | 
						|
                    if not (type(macro) is TupleType and
 | 
						|
                            1 <= len(macro) <= 2):
 | 
						|
                        raise DistutilsSetupError, \
 | 
						|
                              ("'macros' element of build info dict "
 | 
						|
                               "must be 1- or 2-tuple")
 | 
						|
                    if len(macro) == 1:
 | 
						|
                        ext.undef_macros.append(macro[0])
 | 
						|
                    elif len(macro) == 2:
 | 
						|
                        ext.define_macros.append(macro)
 | 
						|
 | 
						|
            extensions[i] = ext
 | 
						|
 | 
						|
        # for extensions
 | 
						|
 | 
						|
    # check_extensions_list ()
 | 
						|
 | 
						|
 | 
						|
    def get_source_files (self):
 | 
						|
        self.check_extensions_list(self.extensions)
 | 
						|
        filenames = []
 | 
						|
 | 
						|
        # Wouldn't it be neat if we knew the names of header files too...
 | 
						|
        for ext in self.extensions:
 | 
						|
            filenames.extend(ext.sources)
 | 
						|
 | 
						|
        return filenames
 | 
						|
 | 
						|
 | 
						|
    def get_outputs (self):
 | 
						|
 | 
						|
        # Sanity check the 'extensions' list -- can't assume this is being
 | 
						|
        # done in the same run as a 'build_extensions()' call (in fact, we
 | 
						|
        # can probably assume that it *isn't*!).
 | 
						|
        self.check_extensions_list(self.extensions)
 | 
						|
 | 
						|
        # And build the list of output (built) filenames.  Note that this
 | 
						|
        # ignores the 'inplace' flag, and assumes everything goes in the
 | 
						|
        # "build" tree.
 | 
						|
        outputs = []
 | 
						|
        for ext in self.extensions:
 | 
						|
            fullname = self.get_ext_fullname(ext.name)
 | 
						|
            outputs.append(os.path.join(self.build_lib,
 | 
						|
                                        self.get_ext_filename(fullname)))
 | 
						|
        return outputs
 | 
						|
 | 
						|
    # get_outputs ()
 | 
						|
 | 
						|
    def build_extensions(self):
 | 
						|
        # First, sanity-check the 'extensions' list
 | 
						|
        self.check_extensions_list(self.extensions)
 | 
						|
 | 
						|
        for ext in self.extensions:
 | 
						|
            try:
 | 
						|
                self.build_extension(ext)
 | 
						|
            except (CCompilerError, DistutilsError, CompileError), e:
 | 
						|
                if not ext.optional:
 | 
						|
                    raise
 | 
						|
                self.warn('building extension "%s" failed: %s' %
 | 
						|
                          (ext.name, e))
 | 
						|
 | 
						|
    def build_extension(self, ext):
 | 
						|
        sources = ext.sources
 | 
						|
        if sources is None or type(sources) not in (ListType, TupleType):
 | 
						|
            raise DistutilsSetupError, \
 | 
						|
                  ("in 'ext_modules' option (extension '%s'), " +
 | 
						|
                   "'sources' must be present and must be " +
 | 
						|
                   "a list of source filenames") % ext.name
 | 
						|
        sources = list(sources)
 | 
						|
 | 
						|
        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 = string.split(fullname, '.')
 | 
						|
            package = string.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))
 | 
						|
        depends = sources + ext.depends
 | 
						|
        if not (self.force or newer_group(depends, ext_filename, 'newer')):
 | 
						|
            log.debug("skipping '%s' extension (up-to-date)", ext.name)
 | 
						|
            return
 | 
						|
        else:
 | 
						|
            log.info("building '%s' extension", ext.name)
 | 
						|
 | 
						|
        # First, scan the sources for SWIG definition files (.i), run
 | 
						|
        # SWIG on 'em to create .c files, and modify the sources list
 | 
						|
        # accordingly.
 | 
						|
        sources = self.swig_sources(sources, ext)
 | 
						|
 | 
						|
        # Next, compile the source code to object files.
 | 
						|
 | 
						|
        # XXX not honouring 'define_macros' or 'undef_macros' -- the
 | 
						|
        # CCompiler API needs to change to accommodate this, and I
 | 
						|
        # want to do one thing at a time!
 | 
						|
 | 
						|
        # Two possible sources for extra compiler arguments:
 | 
						|
        #   - 'extra_compile_args' in Extension object
 | 
						|
        #   - CFLAGS environment variable (not particularly
 | 
						|
        #     elegant, but people seem to expect it and I
 | 
						|
        #     guess it's useful)
 | 
						|
        # The environment variable should take precedence, and
 | 
						|
        # any sensible compiler will give precedence to later
 | 
						|
        # command line args.  Hence we combine them in order:
 | 
						|
        extra_args = ext.extra_compile_args or []
 | 
						|
 | 
						|
        macros = ext.define_macros[:]
 | 
						|
        for undef in ext.undef_macros:
 | 
						|
            macros.append((undef,))
 | 
						|
 | 
						|
        objects = self.compiler.compile(sources,
 | 
						|
                                        output_dir=self.build_temp,
 | 
						|
                                        macros=macros,
 | 
						|
                                        include_dirs=ext.include_dirs,
 | 
						|
                                        debug=self.debug,
 | 
						|
                                        extra_postargs=extra_args,
 | 
						|
                                        depends=ext.depends)
 | 
						|
 | 
						|
        # XXX -- this is a Vile HACK!
 | 
						|
        #
 | 
						|
        # The setup.py script for Python on Unix needs to be able to
 | 
						|
        # get this list so it can perform all the clean up needed to
 | 
						|
        # avoid keeping object files around when cleaning out a failed
 | 
						|
        # build of an extension module.  Since Distutils does not
 | 
						|
        # track dependencies, we have to get rid of intermediates to
 | 
						|
        # ensure all the intermediates will be properly re-built.
 | 
						|
        #
 | 
						|
        self._built_objects = objects[:]
 | 
						|
 | 
						|
        # Now link the object files together into a "shared object" --
 | 
						|
        # of course, first we have to figure out all the other things
 | 
						|
        # that go into the mix.
 | 
						|
        if ext.extra_objects:
 | 
						|
            objects.extend(ext.extra_objects)
 | 
						|
        extra_args = ext.extra_link_args or []
 | 
						|
 | 
						|
        # Detect target language, if not provided
 | 
						|
        language = ext.language or self.compiler.detect_language(sources)
 | 
						|
 | 
						|
        self.compiler.link_shared_object(
 | 
						|
            objects, ext_filename,
 | 
						|
            libraries=self.get_libraries(ext),
 | 
						|
            library_dirs=ext.library_dirs,
 | 
						|
            runtime_library_dirs=ext.runtime_library_dirs,
 | 
						|
            extra_postargs=extra_args,
 | 
						|
            export_symbols=self.get_export_symbols(ext),
 | 
						|
            debug=self.debug,
 | 
						|
            build_temp=self.build_temp,
 | 
						|
            target_lang=language)
 | 
						|
 | 
						|
 | 
						|
    def swig_sources (self, sources, extension):
 | 
						|
 | 
						|
        """Walk the list of source files in 'sources', looking for SWIG
 | 
						|
        interface (.i) files.  Run SWIG on all that are found, and
 | 
						|
        return a modified 'sources' list with SWIG source files replaced
 | 
						|
        by the generated C (or C++) files.
 | 
						|
        """
 | 
						|
 | 
						|
        new_sources = []
 | 
						|
        swig_sources = []
 | 
						|
        swig_targets = {}
 | 
						|
 | 
						|
        # XXX this drops generated C/C++ files into the source tree, which
 | 
						|
        # is fine for developers who want to distribute the generated
 | 
						|
        # source -- but there should be an option to put SWIG output in
 | 
						|
        # the temp dir.
 | 
						|
 | 
						|
        if self.swig_cpp:
 | 
						|
            log.warn("--swig-cpp is deprecated - use --swig-opts=-c++")
 | 
						|
 | 
						|
        if self.swig_cpp or ('-c++' in self.swig_opts) or \
 | 
						|
           ('-c++' in extension.swig_opts):
 | 
						|
            target_ext = '.cpp'
 | 
						|
        else:
 | 
						|
            target_ext = '.c'
 | 
						|
 | 
						|
        for source in sources:
 | 
						|
            (base, ext) = os.path.splitext(source)
 | 
						|
            if ext == ".i":             # SWIG interface file
 | 
						|
                new_sources.append(base + '_wrap' + target_ext)
 | 
						|
                swig_sources.append(source)
 | 
						|
                swig_targets[source] = new_sources[-1]
 | 
						|
            else:
 | 
						|
                new_sources.append(source)
 | 
						|
 | 
						|
        if not swig_sources:
 | 
						|
            return new_sources
 | 
						|
 | 
						|
        swig = self.swig or self.find_swig()
 | 
						|
        swig_cmd = [swig, "-python"]
 | 
						|
        swig_cmd.extend(self.swig_opts)
 | 
						|
        if self.swig_cpp:
 | 
						|
            swig_cmd.append("-c++")
 | 
						|
 | 
						|
        # Do not override commandline arguments
 | 
						|
        if not self.swig_opts:
 | 
						|
            for o in extension.swig_opts:
 | 
						|
                swig_cmd.append(o)
 | 
						|
 | 
						|
        for source in swig_sources:
 | 
						|
            target = swig_targets[source]
 | 
						|
            log.info("swigging %s to %s", source, target)
 | 
						|
            self.spawn(swig_cmd + ["-o", target, source])
 | 
						|
 | 
						|
        return new_sources
 | 
						|
 | 
						|
    # swig_sources ()
 | 
						|
 | 
						|
    def find_swig (self):
 | 
						|
        """Return the name of the SWIG executable.  On Unix, this is
 | 
						|
        just "swig" -- it should be in the PATH.  Tries a bit harder on
 | 
						|
        Windows.
 | 
						|
        """
 | 
						|
 | 
						|
        if os.name == "posix":
 | 
						|
            return "swig"
 | 
						|
        elif os.name == "nt":
 | 
						|
 | 
						|
            # Look for SWIG in its standard installation directory on
 | 
						|
            # Windows (or so I presume!).  If we find it there, great;
 | 
						|
            # if not, act like Unix and assume it's in the PATH.
 | 
						|
            for vers in ("1.3", "1.2", "1.1"):
 | 
						|
                fn = os.path.join("c:\\swig%s" % vers, "swig.exe")
 | 
						|
                if os.path.isfile(fn):
 | 
						|
                    return fn
 | 
						|
            else:
 | 
						|
                return "swig.exe"
 | 
						|
 | 
						|
        elif os.name == "os2":
 | 
						|
            # assume swig available in the PATH.
 | 
						|
            return "swig.exe"
 | 
						|
 | 
						|
        else:
 | 
						|
            raise DistutilsPlatformError, \
 | 
						|
                  ("I don't know how to find (much less run) SWIG "
 | 
						|
                   "on platform '%s'") % os.name
 | 
						|
 | 
						|
    # find_swig ()
 | 
						|
 | 
						|
    # -- Name generators -----------------------------------------------
 | 
						|
    # (extension names, filenames, whatever)
 | 
						|
 | 
						|
    def get_ext_fullname (self, ext_name):
 | 
						|
        if self.package is None:
 | 
						|
            return ext_name
 | 
						|
        else:
 | 
						|
            return self.package + '.' + ext_name
 | 
						|
 | 
						|
    def get_ext_filename (self, ext_name):
 | 
						|
        r"""Convert the name of an extension (eg. "foo.bar") into the name
 | 
						|
        of the file from which it will be loaded (eg. "foo/bar.so", or
 | 
						|
        "foo\bar.pyd").
 | 
						|
        """
 | 
						|
 | 
						|
        from distutils.sysconfig import get_config_var
 | 
						|
        ext_path = string.split(ext_name, '.')
 | 
						|
        # OS/2 has an 8 character module (extension) limit :-(
 | 
						|
        if os.name == "os2":
 | 
						|
            ext_path[len(ext_path) - 1] = ext_path[len(ext_path) - 1][:8]
 | 
						|
        # extensions in debug_mode are named 'module_d.pyd' under windows
 | 
						|
        so_ext = get_config_var('SO')
 | 
						|
        if os.name == 'nt' and self.debug:
 | 
						|
            return apply(os.path.join, ext_path) + '_d' + so_ext
 | 
						|
        return os.path.join(*ext_path) + so_ext
 | 
						|
 | 
						|
    def get_export_symbols (self, ext):
 | 
						|
        """Return the list of symbols that a shared extension has to
 | 
						|
        export.  This either uses 'ext.export_symbols' or, if it's not
 | 
						|
        provided, "init" + module_name.  Only relevant on Windows, where
 | 
						|
        the .pyd file (DLL) must export the module "init" function.
 | 
						|
        """
 | 
						|
 | 
						|
        initfunc_name = "init" + string.split(ext.name,'.')[-1]
 | 
						|
        if initfunc_name not in ext.export_symbols:
 | 
						|
            ext.export_symbols.append(initfunc_name)
 | 
						|
        return ext.export_symbols
 | 
						|
 | 
						|
    def get_libraries (self, ext):
 | 
						|
        """Return the list of libraries to link against when building a
 | 
						|
        shared extension.  On most platforms, this is just 'ext.libraries';
 | 
						|
        on Windows and OS/2, we add the Python library (eg. python20.dll).
 | 
						|
        """
 | 
						|
        # The python library is always needed on Windows.  For MSVC, this
 | 
						|
        # is redundant, since the library is mentioned in a pragma in
 | 
						|
        # pyconfig.h that MSVC groks.  The other Windows compilers all seem
 | 
						|
        # to need it mentioned explicitly, though, so that's what we do.
 | 
						|
        # Append '_d' to the python import library on debug builds.
 | 
						|
        if sys.platform == "win32":
 | 
						|
            from distutils.msvccompiler import MSVCCompiler
 | 
						|
            if not isinstance(self.compiler, MSVCCompiler):
 | 
						|
                template = "python%d%d"
 | 
						|
                if self.debug:
 | 
						|
                    template = template + '_d'
 | 
						|
                pythonlib = (template %
 | 
						|
                       (sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
 | 
						|
                # don't extend ext.libraries, it may be shared with other
 | 
						|
                # extensions, it is a reference to the original list
 | 
						|
                return ext.libraries + [pythonlib]
 | 
						|
            else:
 | 
						|
                return ext.libraries
 | 
						|
        elif sys.platform == "os2emx":
 | 
						|
            # EMX/GCC requires the python library explicitly, and I
 | 
						|
            # believe VACPP does as well (though not confirmed) - AIM Apr01
 | 
						|
            template = "python%d%d"
 | 
						|
            # debug versions of the main DLL aren't supported, at least
 | 
						|
            # not at this time - AIM Apr01
 | 
						|
            #if self.debug:
 | 
						|
            #    template = template + '_d'
 | 
						|
            pythonlib = (template %
 | 
						|
                   (sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
 | 
						|
            # don't extend ext.libraries, it may be shared with other
 | 
						|
            # extensions, it is a reference to the original list
 | 
						|
            return ext.libraries + [pythonlib]
 | 
						|
        elif sys.platform[:6] == "cygwin":
 | 
						|
            template = "python%d.%d"
 | 
						|
            pythonlib = (template %
 | 
						|
                   (sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
 | 
						|
            # don't extend ext.libraries, it may be shared with other
 | 
						|
            # extensions, it is a reference to the original list
 | 
						|
            return ext.libraries + [pythonlib]
 | 
						|
        elif sys.platform[:6] == "atheos":
 | 
						|
            from distutils import sysconfig
 | 
						|
 | 
						|
            template = "python%d.%d"
 | 
						|
            pythonlib = (template %
 | 
						|
                   (sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
 | 
						|
            # Get SHLIBS from Makefile
 | 
						|
            extra = []
 | 
						|
            for lib in sysconfig.get_config_var('SHLIBS').split():
 | 
						|
                if lib.startswith('-l'):
 | 
						|
                    extra.append(lib[2:])
 | 
						|
                else:
 | 
						|
                    extra.append(lib)
 | 
						|
            # don't extend ext.libraries, it may be shared with other
 | 
						|
            # extensions, it is a reference to the original list
 | 
						|
            return ext.libraries + [pythonlib, "m"] + extra
 | 
						|
 | 
						|
        elif sys.platform == 'darwin':
 | 
						|
            # Don't use the default code below
 | 
						|
            return ext.libraries
 | 
						|
 | 
						|
        else:
 | 
						|
            from distutils import sysconfig
 | 
						|
            if sysconfig.get_config_var('Py_ENABLE_SHARED'):
 | 
						|
                template = "python%d.%d"
 | 
						|
                pythonlib = (template %
 | 
						|
                             (sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
 | 
						|
                return ext.libraries + [pythonlib]
 | 
						|
            else:
 | 
						|
                return ext.libraries
 | 
						|
 | 
						|
# class build_ext
 |