Added an execution layer to be able to customize per-extension
building.
This commit is contained in:
Marc-André Lemburg
parent
d30e587e00
commit
49c994239f
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@ -356,104 +356,105 @@ class build_ext (Command):
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# get_outputs ()
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def build_extensions (self):
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def build_extensions(self):
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# First, sanity-check the 'extensions' list
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self.check_extensions_list(self.extensions)
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for ext in self.extensions:
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sources = ext.sources
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if sources is None or type(sources) not in (ListType, TupleType):
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raise DistutilsSetupError, \
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("in 'ext_modules' option (extension '%s'), " +
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"'sources' must be present and must be " +
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"a list of source filenames") % ext.name
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sources = list(sources)
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self.build_extension(ext)
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fullname = self.get_ext_fullname(ext.name)
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if self.inplace:
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# ignore build-lib -- put the compiled extension into
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# the source tree along with pure Python modules
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def build_extension(self, ext):
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modpath = string.split(fullname, '.')
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package = string.join(modpath[0:-1], '.')
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base = modpath[-1]
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sources = ext.sources
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if sources is None or type(sources) not in (ListType, TupleType):
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raise DistutilsSetupError, \
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("in 'ext_modules' option (extension '%s'), " +
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"'sources' must be present and must be " +
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"a list of source filenames") % ext.name
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sources = list(sources)
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build_py = self.get_finalized_command('build_py')
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package_dir = build_py.get_package_dir(package)
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ext_filename = os.path.join(package_dir,
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self.get_ext_filename(base))
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else:
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ext_filename = os.path.join(self.build_lib,
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self.get_ext_filename(fullname))
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fullname = self.get_ext_fullname(ext.name)
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if self.inplace:
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# ignore build-lib -- put the compiled extension into
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# the source tree along with pure Python modules
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if not (self.force or newer_group(sources, ext_filename, 'newer')):
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self.announce("skipping '%s' extension (up-to-date)" %
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ext.name)
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continue # 'for' loop over all extensions
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else:
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self.announce("building '%s' extension" % ext.name)
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modpath = string.split(fullname, '.')
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package = string.join(modpath[0:-1], '.')
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base = modpath[-1]
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# First, scan the sources for SWIG definition files (.i), run
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# SWIG on 'em to create .c files, and modify the sources list
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# accordingly.
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sources = self.swig_sources(sources)
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build_py = self.get_finalized_command('build_py')
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package_dir = build_py.get_package_dir(package)
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ext_filename = os.path.join(package_dir,
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self.get_ext_filename(base))
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else:
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ext_filename = os.path.join(self.build_lib,
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self.get_ext_filename(fullname))
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# Next, compile the source code to object files.
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if not (self.force or newer_group(sources, ext_filename, 'newer')):
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self.announce("skipping '%s' extension (up-to-date)" %
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ext.name)
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return
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else:
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self.announce("building '%s' extension" % ext.name)
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# XXX not honouring 'define_macros' or 'undef_macros' -- the
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# CCompiler API needs to change to accommodate this, and I
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# want to do one thing at a time!
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# First, scan the sources for SWIG definition files (.i), run
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# SWIG on 'em to create .c files, and modify the sources list
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# accordingly.
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sources = self.swig_sources(sources)
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# Two possible sources for extra compiler arguments:
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# - 'extra_compile_args' in Extension object
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# - CFLAGS environment variable (not particularly
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# elegant, but people seem to expect it and I
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# guess it's useful)
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# The environment variable should take precedence, and
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# any sensible compiler will give precedence to later
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# command line args. Hence we combine them in order:
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extra_args = ext.extra_compile_args or []
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# Next, compile the source code to object files.
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macros = ext.define_macros[:]
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for undef in ext.undef_macros:
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macros.append((undef,))
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# XXX not honouring 'define_macros' or 'undef_macros' -- the
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# CCompiler API needs to change to accommodate this, and I
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# want to do one thing at a time!
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# XXX and if we support CFLAGS, why not CC (compiler
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# executable), CPPFLAGS (pre-processor options), and LDFLAGS
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# (linker options) too?
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# XXX should we use shlex to properly parse CFLAGS?
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# Two possible sources for extra compiler arguments:
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# - 'extra_compile_args' in Extension object
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# - CFLAGS environment variable (not particularly
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# elegant, but people seem to expect it and I
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# guess it's useful)
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# The environment variable should take precedence, and
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# any sensible compiler will give precedence to later
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# command line args. Hence we combine them in order:
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extra_args = ext.extra_compile_args or []
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if os.environ.has_key('CFLAGS'):
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extra_args.extend(string.split(os.environ['CFLAGS']))
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objects = self.compiler.compile(sources,
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output_dir=self.build_temp,
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macros=macros,
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include_dirs=ext.include_dirs,
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debug=self.debug,
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extra_postargs=extra_args)
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macros = ext.define_macros[:]
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for undef in ext.undef_macros:
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macros.append((undef,))
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# Now link the object files together into a "shared object" --
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# of course, first we have to figure out all the other things
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# that go into the mix.
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if ext.extra_objects:
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objects.extend(ext.extra_objects)
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extra_args = ext.extra_link_args or []
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# XXX and if we support CFLAGS, why not CC (compiler
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# executable), CPPFLAGS (pre-processor options), and LDFLAGS
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# (linker options) too?
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# XXX should we use shlex to properly parse CFLAGS?
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if os.environ.has_key('CFLAGS'):
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extra_args.extend(string.split(os.environ['CFLAGS']))
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objects = self.compiler.compile(sources,
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output_dir=self.build_temp,
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macros=macros,
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include_dirs=ext.include_dirs,
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debug=self.debug,
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extra_postargs=extra_args)
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# Now link the object files together into a "shared object" --
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# of course, first we have to figure out all the other things
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# that go into the mix.
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if ext.extra_objects:
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objects.extend(ext.extra_objects)
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extra_args = ext.extra_link_args or []
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self.compiler.link_shared_object(
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objects, ext_filename,
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libraries=self.get_libraries(ext),
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library_dirs=ext.library_dirs,
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runtime_library_dirs=ext.runtime_library_dirs,
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extra_postargs=extra_args,
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export_symbols=self.get_export_symbols(ext),
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debug=self.debug,
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build_temp=self.build_temp)
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# build_extensions ()
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self.compiler.link_shared_object(
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objects, ext_filename,
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libraries=self.get_libraries(ext),
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library_dirs=ext.library_dirs,
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runtime_library_dirs=ext.runtime_library_dirs,
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extra_postargs=extra_args,
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export_symbols=self.get_export_symbols(ext),
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debug=self.debug,
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build_temp=self.build_temp)
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def swig_sources (self, sources):
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