"""distutils.command.build_ext Implements the Distutils 'build_ext' command, for building extensionmodules (currently limited to C extensions, should accommodate C++extensions ASAP).""" # This module should be kept compatible with Python 2.1. __revision__ = "$Id: build_ext.py 54332 2007-03-13 10:19:35Z georg.brandl $" import sys, os, string, refrom types import *from distutils.core import Commandfrom distutils.errors import *from distutils.sysconfig import customize_compiler, get_python_versionfrom distutils.dep_util import newer_groupfrom distutils.extension import Extensionfrom distutils import log # An extension name is just a dot-separated list of Python NAMEs (ie.# the same as a fully-qualified module name).extension_name_re = re.compile \ (r'^[a-zA-Z_][a-zA-Z_0-9]*(\.[a-zA-Z_][a-zA-Z_0-9]*)*$') def show_compilers (): from distutils.ccompiler import show_compilers show_compilers() class build_ext (Command): description = "build C/C++ extensions (compile/link to build directory)" # XXX thoughts on how to deal with complex command-line options like # these, i.e. how to make it so fancy_getopt can suck them off the # command line and make it look like setup.py defined the appropriate # lists of tuples of what-have-you. # - each command needs a callback to process its command-line options # - Command.__init__() needs access to its share of the whole # command line (must ultimately come from # Distribution.parse_command_line()) # - it then calls the current command class' option-parsing # callback to deal with weird options like -D, which have to # parse the option text and churn out some custom data # structure # - that data structure (in this case, a list of 2-tuples) # will then be present in the command object by the time # we get to finalize_options() (i.e. the constructor # takes care of both command-line and client options # in between initialize_options() and finalize_options()) sep_by = " (separated by '%s')" % os.pathsep user_options = [ ('build-lib=', 'b', "directory for compiled extension modules"), ('build-temp=', 't', "directory for temporary files (build by-products)"), ('inplace', 'i', "ignore build-lib and put compiled extensions into the source " + "directory alongside your pure Python modules"), ('include-dirs=', 'I', "list of directories to search for header files" + sep_by), ('define=', 'D', "C preprocessor macros to define"), ('undef=', 'U', "C preprocessor macros to undefine"), ('libraries=', 'l', "external C libraries to link with"), ('library-dirs=', 'L', "directories to search for external C libraries" + sep_by), ('rpath=', 'R', "directories to search for shared C libraries at runtime"), ('link-objects=', 'O', "extra explicit link objects to include in the link"), ('debug', 'g', "compile/link with debugging information"), ('force', 'f', "forcibly build everything (ignore file timestamps)"), ('compiler=', 'c', "specify the compiler type"), ('swig-cpp', None, "make SWIG create C++ files (default is C)"), ('swig-opts=', None, "list of SWIG command line options"), ('swig=', None, "path to the SWIG executable"), ] boolean_options = ['inplace', 'debug', 'force', 'swig-cpp'] help_options = [ ('help-compiler', None, "list available compilers", show_compilers), ] def initialize_options (self): self.extensions = None self.build_lib = None self.build_temp = None self.inplace = 0 self.package = None self.include_dirs = None self.define = None self.undef = None self.libraries = None self.library_dirs = None self.rpath = None self.link_objects = None self.debug = None self.force = None self.compiler = None self.swig = None self.swig_cpp = None self.swig_opts = None def finalize_options (self): from distutils import sysconfig self.set_undefined_options('build', ('build_lib', 'build_lib'), ('build_temp', 'build_temp'), ('compiler', 'compiler'), ('debug', 'debug'), ('force', 'force')) if self.package is None: self.package = self.distribution.ext_package self.extensions = self.distribution.ext_modules # Make sure Python's include directories (for Python.h, pyconfig.h, # etc.) are in the include search path. py_include = sysconfig.get_python_inc() plat_py_include = sysconfig.get_python_inc(plat_specific=1) if self.include_dirs is None: self.include_dirs = self.distribution.include_dirs or [] if type(self.include_dirs) is StringType: self.include_dirs = string.split(self.include_dirs, os.pathsep) # Put the Python "system" include dir at the end, so that # any local include dirs take precedence. self.include_dirs.append(py_include) if plat_py_include != py_include: self.include_dirs.append(plat_py_include) if type(self.libraries) is StringType: self.libraries = [self.libraries] # Life is easier if we're not forever checking for None, so # simplify these options to empty lists if unset if self.libraries is None: self.libraries = [] if self.library_dirs is None: self.library_dirs = [] elif type(self.library_dirs) is StringType: self.library_dirs = string.split(self.library_dirs, os.pathsep) if self.rpath is None: self.rpath = [] elif type(self.rpath) is StringType: self.rpath = string.split(self.rpath, os.pathsep) # for extensions under windows use different directories # for Release and Debug builds. # also Python's library directory must be appended to library_dirs if os.name == 'nt': self.library_dirs.append(os.path.join(sys.exec_prefix, 'libs')) if self.debug: self.build_temp = os.path.join(self.build_temp, "Debug") else: self.build_temp = os.path.join(self.build_temp, "Release") # Append the source distribution include and library directories, # this allows distutils on windows to work in the source tree self.include_dirs.append(os.path.join(sys.exec_prefix, 'PC')) self.library_dirs.append(os.path.join(sys.exec_prefix, 'PCBuild')) # OS/2 (EMX) doesn't support Debug vs Release builds, but has the # import libraries in its "Config" subdirectory if os.name == 'os2': self.library_dirs.append(os.path.join(sys.exec_prefix, 'Config')) # for extensions under Cygwin and AtheOS Python's library directory must be # appended to library_dirs if sys.platform[:6] == 'cygwin' or sys.platform[:6] == 'atheos': if sys.executable.startswith(os.path.join(sys.exec_prefix, "bin")): # building third party extensions self.library_dirs.append(os.path.join(sys.prefix, "lib", "python" + get_python_version(), "config")) else: # building python standard extensions self.library_dirs.append('.') # for extensions under Linux with a shared Python library, # Python's library directory must be appended to library_dirs if (sys.platform.startswith('linux') or sys.platform.startswith('gnu')) \ 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(' ') # 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) # 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 build_info.has_key('def_file'): 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: self.build_extension(ext) 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 [] Lines 1–500 of 716. Load more
"""distutils.command.build_ext Implements the Distutils 'build_ext' command, for building extension modules (currently limited to C extensions, should accommodate C++ extensions ASAP).""" # This module should be kept compatible with Python 2.1. __revision__ = "$Id: build_ext.py 54332 2007-03-13 10:19:35Z georg.brandl $" import sys, os, string, re from types import * from distutils.core import Command from distutils.errors import * from distutils.sysconfig import customize_compiler, get_python_version from distutils.dep_util import newer_group from distutils.extension import Extension from distutils import log # An extension name is just a dot-separated list of Python NAMEs (ie. # the same as a fully-qualified module name). extension_name_re = re.compile \ (r'^[a-zA-Z_][a-zA-Z_0-9]*(\.[a-zA-Z_][a-zA-Z_0-9]*)*$') def show_compilers (): from distutils.ccompiler import show_compilers show_compilers() class build_ext (Command): description = "build C/C++ extensions (compile/link to build directory)" # XXX thoughts on how to deal with complex command-line options like # these, i.e. how to make it so fancy_getopt can suck them off the # command line and make it look like setup.py defined the appropriate # lists of tuples of what-have-you. # - each command needs a callback to process its command-line options # - Command.__init__() needs access to its share of the whole # command line (must ultimately come from # Distribution.parse_command_line()) # - it then calls the current command class' option-parsing # callback to deal with weird options like -D, which have to # parse the option text and churn out some custom data # structure # - that data structure (in this case, a list of 2-tuples) # will then be present in the command object by the time # we get to finalize_options() (i.e. the constructor # takes care of both command-line and client options # in between initialize_options() and finalize_options()) sep_by = " (separated by '%s')" % os.pathsep user_options = [ ('build-lib=', 'b', "directory for compiled extension modules"), ('build-temp=', 't', "directory for temporary files (build by-products)"), ('inplace', 'i', "ignore build-lib and put compiled extensions into the source " + "directory alongside your pure Python modules"), ('include-dirs=', 'I', "list of directories to search for header files" + sep_by), ('define=', 'D', "C preprocessor macros to define"), ('undef=', 'U', "C preprocessor macros to undefine"), ('libraries=', 'l', "external C libraries to link with"), ('library-dirs=', 'L', "directories to search for external C libraries" + sep_by), ('rpath=', 'R', "directories to search for shared C libraries at runtime"), ('link-objects=', 'O', "extra explicit link objects to include in the link"), ('debug', 'g', "compile/link with debugging information"), ('force', 'f', "forcibly build everything (ignore file timestamps)"), ('compiler=', 'c', "specify the compiler type"), ('swig-cpp', None, "make SWIG create C++ files (default is C)"), ('swig-opts=', None, "list of SWIG command line options"), ('swig=', None, "path to the SWIG executable"), ] boolean_options = ['inplace', 'debug', 'force', 'swig-cpp'] help_options = [ ('help-compiler', None, "list available compilers", show_compilers), ] def initialize_options (self): self.extensions = None self.build_lib = None self.build_temp = None self.inplace = 0 self.package = None self.include_dirs = None self.define = None self.undef = None self.libraries = None self.library_dirs = None self.rpath = None self.link_objects = None self.debug = None self.force = None self.compiler = None self.swig = None self.swig_cpp = None self.swig_opts = None def finalize_options (self): from distutils import sysconfig self.set_undefined_options('build', ('build_lib', 'build_lib'), ('build_temp', 'build_temp'), ('compiler', 'compiler'), ('debug', 'debug'), ('force', 'force')) if self.package is None: self.package = self.distribution.ext_package self.extensions = self.distribution.ext_modules # Make sure Python's include directories (for Python.h, pyconfig.h, # etc.) are in the include search path. py_include = sysconfig.get_python_inc() plat_py_include = sysconfig.get_python_inc(plat_specific=1) if self.include_dirs is None: self.include_dirs = self.distribution.include_dirs or [] if type(self.include_dirs) is StringType: self.include_dirs = string.split(self.include_dirs, os.pathsep) # Put the Python "system" include dir at the end, so that # any local include dirs take precedence. self.include_dirs.append(py_include) if plat_py_include != py_include: self.include_dirs.append(plat_py_include) if type(self.libraries) is StringType: self.libraries = [self.libraries] # Life is easier if we're not forever checking for None, so # simplify these options to empty lists if unset if self.libraries is None: self.libraries = [] if self.library_dirs is None: self.library_dirs = [] elif type(self.library_dirs) is StringType: self.library_dirs = string.split(self.library_dirs, os.pathsep) if self.rpath is None: self.rpath = [] elif type(self.rpath) is StringType: self.rpath = string.split(self.rpath, os.pathsep) # for extensions under windows use different directories # for Release and Debug builds. # also Python's library directory must be appended to library_dirs if os.name == 'nt': self.library_dirs.append(os.path.join(sys.exec_prefix, 'libs')) if self.debug: self.build_temp = os.path.join(self.build_temp, "Debug") else: self.build_temp = os.path.join(self.build_temp, "Release") # Append the source distribution include and library directories, # this allows distutils on windows to work in the source tree self.include_dirs.append(os.path.join(sys.exec_prefix, 'PC')) self.library_dirs.append(os.path.join(sys.exec_prefix, 'PCBuild')) # OS/2 (EMX) doesn't support Debug vs Release builds, but has the # import libraries in its "Config" subdirectory if os.name == 'os2': self.library_dirs.append(os.path.join(sys.exec_prefix, 'Config')) # for extensions under Cygwin and AtheOS Python's library directory must be # appended to library_dirs if sys.platform[:6] == 'cygwin' or sys.platform[:6] == 'atheos': if sys.executable.startswith(os.path.join(sys.exec_prefix, "bin")): # building third party extensions self.library_dirs.append(os.path.join(sys.prefix, "lib", "python" + get_python_version(), "config")) else: # building python standard extensions self.library_dirs.append('.') # for extensions under Linux with a shared Python library, # Python's library directory must be appended to library_dirs if (sys.platform.startswith('linux') or sys.platform.startswith('gnu')) \ 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(' ') # 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) # 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 build_info.has_key('def_file'): 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: self.build_extension(ext) 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 []