+++ /dev/null
-"""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 1.5.2.
-
-__revision__ = "$Id$"
-
-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)"),
- ]
-
- 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_cpp = 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 string.find(sys.executable, sys.exec_prefix) != -1:
- # 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('.')
-
- # 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, ',')
-
- # 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)
-
- # 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):
-
- """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:
- 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.find_swig()
- swig_cmd = [swig, "-python"]
- if self.swig_cpp:
- swig_cmd.append("-c++")
-
- 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 apply(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
- else:
- return ext.libraries
-
-# class build_ext
projects / wxWidgets.git / blobdiff