356         for i, ext in enumerate(extensions):
357             if isinstance(ext, Extension):
361             if not isinstance(ext, tuple) or len(ext) != 2:
366             ext_name, build_info = ext
385             ext = Extension(ext_name, build_info['sources'])
394                     setattr(ext, key, val)
397             ext.runtime_library_dirs = build_info.get('rpath')
406                 ext.define_macros = []
407                 ext.undef_macros = []
414                         ext.undef_macros.append(macro[0])
416                         ext.define_macros.append(macro)
418             extensions[i] = ext
425         for ext in self.extensions:
426             filenames.extend(ext.sources)
440         for ext in self.extensions:
441             outputs.append(self.get_ext_fullpath(ext.name))
448         for ext in self.extensions:
449             self.build_extension(ext)
451     def build_extension(self, ext):  argument
452         sources = ext.sources
457                    "a list of source filenames") % ext.name
460         ext_path = self.get_ext_fullpath(ext.name)
461         depends = sources + ext.depends
463             log.debug("skipping '%s' extension (up-to-date)", ext.name)
466             log.info("building '%s' extension", ext.name)
471         sources = self.swig_sources(sources, ext)
487         extra_args = ext.extra_compile_args or []
489         macros = ext.define_macros[:]
490         for undef in ext.undef_macros:
496                                          include_dirs=ext.include_dirs,
499                                          depends=ext.depends)
515         if ext.extra_objects:
516             objects.extend(ext.extra_objects)
517         extra_args = ext.extra_link_args or []
520         language = ext.language or self.compiler.detect_language(sources)
524             libraries=self.get_libraries(ext),
525             library_dirs=ext.library_dirs,
526             runtime_library_dirs=ext.runtime_library_dirs,
528             export_symbols=self.get_export_symbols(ext),
561             (base, ext) = os.path.splitext(source)
562             if ext == ".i":             # SWIG interface file
682     def get_export_symbols (self, ext):  argument
688         initfunc_name = "init" + ext.name.split('.')[-1]
689         if initfunc_name not in ext.export_symbols:
690             ext.export_symbols.append(initfunc_name)
691         return ext.export_symbols
693     def get_libraries (self, ext):  argument
713                 return ext.libraries + [pythonlib]
715                 return ext.libraries
728             return ext.libraries + [pythonlib]
735             return ext.libraries + [pythonlib]
751             return ext.libraries + [pythonlib, "m"] + extra
755             return ext.libraries
758             return ext.libraries
765                 return ext.libraries + [pythonlib]
767                 return ext.libraries