""" Modified version of build_ext that handles fortran source files. """ from __future__ import division, absolute_import, print_function import os import sys import shutil from glob import glob from distutils.dep_util import newer_group from distutils.command.build_ext import build_ext as old_build_ext from distutils.errors import DistutilsFileError, DistutilsSetupError,\ DistutilsError from distutils.file_util import copy_file from numpy.distutils import log from numpy.distutils.exec_command import exec_command from numpy.distutils.system_info import combine_paths, system_info from numpy.distutils.misc_util import filter_sources, has_f_sources, \ has_cxx_sources, get_ext_source_files, \ get_numpy_include_dirs, is_sequence, get_build_architecture, \ msvc_version from numpy.distutils.command.config_compiler import show_fortran_compilers class build_ext (old_build_ext): description = "build C/C++/F extensions (compile/link to build directory)" user_options = old_build_ext.user_options + [ ('fcompiler=', None, "specify the Fortran compiler type"), ('parallel=', 'j', "number of parallel jobs"), ] help_options = old_build_ext.help_options + [ ('help-fcompiler', None, "list available Fortran compilers", show_fortran_compilers), ] def initialize_options(self): old_build_ext.initialize_options(self) self.fcompiler = None self.parallel = None def finalize_options(self): if self.parallel: try: self.parallel = int(self.parallel) except ValueError: raise ValueError("--parallel/-j argument must be an integer") # Ensure that self.include_dirs and self.distribution.include_dirs # refer to the same list object. finalize_options will modify # self.include_dirs, but self.distribution.include_dirs is used # during the actual build. # self.include_dirs is None unless paths are specified with # --include-dirs. # The include paths will be passed to the compiler in the order: # numpy paths, --include-dirs paths, Python include path. if isinstance(self.include_dirs, str): self.include_dirs = self.include_dirs.split(os.pathsep) incl_dirs = self.include_dirs or [] if self.distribution.include_dirs is None: self.distribution.include_dirs = [] self.include_dirs = self.distribution.include_dirs self.include_dirs.extend(incl_dirs) old_build_ext.finalize_options(self) self.set_undefined_options('build', ('parallel', 'parallel')) def run(self): if not self.extensions: return # Make sure that extension sources are complete. self.run_command('build_src') if self.distribution.has_c_libraries(): if self.inplace: if self.distribution.have_run.get('build_clib'): log.warn('build_clib already run, it is too late to ' 'ensure in-place build of build_clib') build_clib = self.distribution.get_command_obj( 'build_clib') else: build_clib = self.distribution.get_command_obj( 'build_clib') build_clib.inplace = 1 build_clib.ensure_finalized() build_clib.run() self.distribution.have_run['build_clib'] = 1 else: self.run_command('build_clib') build_clib = self.get_finalized_command('build_clib') self.library_dirs.append(build_clib.build_clib) else: build_clib = None # Not including C libraries to the list of # extension libraries automatically to prevent # bogus linking commands. Extensions must # explicitly specify the C libraries that they use. from distutils.ccompiler import new_compiler from numpy.distutils.fcompiler import new_fcompiler compiler_type = self.compiler # Initialize C compiler: self.compiler = new_compiler(compiler=compiler_type, verbose=self.verbose, dry_run=self.dry_run, force=self.force) self.compiler.customize(self.distribution) self.compiler.customize_cmd(self) self.compiler.show_customization() # Setup directory for storing generated extra DLL files on Windows self.extra_dll_dir = os.path.join(self.build_temp, 'extra-dll') if not os.path.isdir(self.extra_dll_dir): os.makedirs(self.extra_dll_dir) # Create mapping of libraries built by build_clib: clibs = {} if build_clib is not None: for libname, build_info in build_clib.libraries or []: if libname in clibs and clibs[libname] != build_info: log.warn('library %r defined more than once,' ' overwriting build_info\n%s... \nwith\n%s...' % (libname, repr(clibs[libname])[:300], repr(build_info)[:300])) clibs[libname] = build_info # .. and distribution libraries: for libname, build_info in self.distribution.libraries or []: if libname in clibs: # build_clib libraries have a precedence before distribution ones continue clibs[libname] = build_info # Determine if C++/Fortran 77/Fortran 90 compilers are needed. # Update extension libraries, library_dirs, and macros. all_languages = set() for ext in self.extensions: ext_languages = set() c_libs = [] c_lib_dirs = [] macros = [] for libname in ext.libraries: if libname in clibs: binfo = clibs[libname] c_libs += binfo.get('libraries', []) c_lib_dirs += binfo.get('library_dirs', []) for m in binfo.get('macros', []): if m not in macros: macros.append(m) for l in clibs.get(libname, {}).get('source_languages', []): ext_languages.add(l) if c_libs: new_c_libs = ext.libraries + c_libs log.info('updating extension %r libraries from %r to %r' % (ext.name, ext.libraries, new_c_libs)) ext.libraries = new_c_libs ext.library_dirs = ext.library_dirs + c_lib_dirs if macros: log.info('extending extension %r defined_macros with %r' % (ext.name, macros)) ext.define_macros = ext.define_macros + macros # determine extension languages if has_f_sources(ext.sources): ext_languages.add('f77') if has_cxx_sources(ext.sources): ext_languages.add('c++') l = ext.language or self.compiler.detect_language(ext.sources) if l: ext_languages.add(l) # reset language attribute for choosing proper linker if 'c++' in ext_languages: ext_language = 'c++' elif 'f90' in ext_languages: ext_language = 'f90' elif 'f77' in ext_languages: ext_language = 'f77' else: ext_language = 'c' # default if l and l != ext_language and ext.language: log.warn('resetting extension %r language from %r to %r.' % (ext.name, l, ext_language)) ext.language = ext_language # global language all_languages.update(ext_languages) need_f90_compiler = 'f90' in all_languages need_f77_compiler = 'f77' in all_languages need_cxx_compiler = 'c++' in all_languages # Initialize C++ compiler: if need_cxx_compiler: self._cxx_compiler = new_compiler(compiler=compiler_type, verbose=self.verbose, dry_run=self.dry_run, force=self.force) compiler = self._cxx_compiler compiler.customize(self.distribution, need_cxx=need_cxx_compiler) compiler.customize_cmd(self) compiler.show_customization() self._cxx_compiler = compiler.cxx_compiler() else: self._cxx_compiler = None # Initialize Fortran 77 compiler: if need_f77_compiler: ctype = self.fcompiler self._f77_compiler = new_fcompiler(compiler=self.fcompiler, verbose=self.verbose, dry_run=self.dry_run, force=self.force, requiref90=False, c_compiler=self.compiler) fcompiler = self._f77_compiler if fcompiler: ctype = fcompiler.compiler_type fcompiler.customize(self.distribution) if fcompiler and fcompiler.get_version(): fcompiler.customize_cmd(self) fcompiler.show_customization() else: self.warn('f77_compiler=%s is not available.' % (ctype)) self._f77_compiler = None else: self._f77_compiler = None # Initialize Fortran 90 compiler: if need_f90_compiler: ctype = self.fcompiler self._f90_compiler = new_fcompiler(compiler=self.fcompiler, verbose=self.verbose, dry_run=self.dry_run, force=self.force, requiref90=True, c_compiler=self.compiler) fcompiler = self._f90_compiler if fcompiler: ctype = fcompiler.compiler_type fcompiler.customize(self.distribution) if fcompiler and fcompiler.get_version(): fcompiler.customize_cmd(self) fcompiler.show_customization() else: self.warn('f90_compiler=%s is not available.' % (ctype)) self._f90_compiler = None else: self._f90_compiler = None # Build extensions self.build_extensions() # Copy over any extra DLL files runtime_lib_dir = os.path.join( self.build_lib, self.distribution.get_name(), '.libs') for fn in os.listdir(self.extra_dll_dir): if not fn.lower().endswith('.dll'): continue if not os.path.isdir(runtime_lib_dir): os.makedirs(runtime_lib_dir) runtime_lib = os.path.join(self.extra_dll_dir, fn) copy_file(runtime_lib, runtime_lib_dir) def swig_sources(self, sources): # Do nothing. Swig sources have beed handled in build_src command. return sources def build_extension(self, ext): sources = ext.sources if sources is None or not is_sequence(sources): 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) if not sources: return fullname = self.get_ext_fullname(ext.name) if self.inplace: modpath = fullname.split('.') package = '.'.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) extra_args = ext.extra_compile_args or [] macros = ext.define_macros[:] for undef in ext.undef_macros: macros.append((undef,)) c_sources, cxx_sources, f_sources, fmodule_sources = \ filter_sources(ext.sources) if self.compiler.compiler_type == 'msvc': if cxx_sources: # Needed to compile kiva.agg._agg extension. extra_args.append('/Zm1000') # this hack works around the msvc compiler attributes # problem, msvc uses its own convention :( c_sources += cxx_sources cxx_sources = [] # Set Fortran/C++ compilers for compilation and linking. if ext.language == 'f90': fcompiler = self._f90_compiler elif ext.language == 'f77': fcompiler = self._f77_compiler else: # in case ext.language is c++, for instance fcompiler = self._f90_compiler or self._f77_compiler if fcompiler is not None: fcompiler.extra_f77_compile_args = (ext.extra_f77_compile_args or []) if hasattr( ext, 'extra_f77_compile_args') else [] fcompiler.extra_f90_compile_args = (ext.extra_f90_compile_args or []) if hasattr( ext, 'extra_f90_compile_args') else [] cxx_compiler = self._cxx_compiler # check for the availability of required compilers if cxx_sources and cxx_compiler is None: raise DistutilsError("extension %r has C++ sources" "but no C++ compiler found" % (ext.name)) if (f_sources or fmodule_sources) and fcompiler is None: raise DistutilsError("extension %r has Fortran sources " "but no Fortran compiler found" % (ext.name)) if ext.language in ['f77', 'f90'] and fcompiler is None: self.warn("extension %r has Fortran libraries " "but no Fortran linker found, using default linker" % (ext.name)) if ext.language == 'c++' and cxx_compiler is None: self.warn("extension %r has C++ libraries " "but no C++ linker found, using default linker" % (ext.name)) kws = {'depends': ext.depends} output_dir = self.build_temp include_dirs = ext.include_dirs + get_numpy_include_dirs() c_objects = [] if c_sources: log.info("compiling C sources") c_objects = self.compiler.compile(c_sources, output_dir=output_dir, macros=macros, include_dirs=include_dirs, debug=self.debug, extra_postargs=extra_args, **kws) if cxx_sources: log.info("compiling C++ sources") c_objects += cxx_compiler.compile(cxx_sources, output_dir=output_dir, macros=macros, include_dirs=include_dirs, debug=self.debug, extra_postargs=extra_args, **kws) extra_postargs = [] f_objects = [] if fmodule_sources: log.info("compiling Fortran 90 module sources") module_dirs = ext.module_dirs[:] module_build_dir = os.path.join( self.build_temp, os.path.dirname( self.get_ext_filename(fullname))) self.mkpath(module_build_dir) if fcompiler.module_dir_switch is None: existing_modules = glob('*.mod') extra_postargs += fcompiler.module_options( module_dirs, module_build_dir) f_objects += fcompiler.compile(fmodule_sources, output_dir=self.build_temp, macros=macros, include_dirs=include_dirs, debug=self.debug, extra_postargs=extra_postargs, depends=ext.depends) if fcompiler.module_dir_switch is None: for f in glob('*.mod'): if f in existing_modules: continue t = os.path.join(module_build_dir, f) if os.path.abspath(f) == os.path.abspath(t): continue if os.path.isfile(t): os.remove(t) try: self.move_file(f, module_build_dir) except DistutilsFileError: log.warn('failed to move %r to %r' % (f, module_build_dir)) if f_sources: log.info("compiling Fortran sources") f_objects += fcompiler.compile(f_sources, output_dir=self.build_temp, macros=macros, include_dirs=include_dirs, debug=self.debug, extra_postargs=extra_postargs, depends=ext.depends) if f_objects and not fcompiler.can_ccompiler_link(self.compiler): unlinkable_fobjects = f_objects objects = c_objects else: unlinkable_fobjects = [] objects = c_objects + f_objects if ext.extra_objects: objects.extend(ext.extra_objects) extra_args = ext.extra_link_args or [] libraries = self.get_libraries(ext)[:] library_dirs = ext.library_dirs[:] linker = self.compiler.link_shared_object # Always use system linker when using MSVC compiler. if self.compiler.compiler_type in ('msvc', 'intelw', 'intelemw'): # expand libraries with fcompiler libraries as we are # not using fcompiler linker self._libs_with_msvc_and_fortran( fcompiler, libraries, library_dirs) elif ext.language in ['f77', 'f90'] and fcompiler is not None: linker = fcompiler.link_shared_object if ext.language == 'c++' and cxx_compiler is not None: linker = cxx_compiler.link_shared_object if fcompiler is not None: objects, libraries = self._process_unlinkable_fobjects( objects, libraries, fcompiler, library_dirs, unlinkable_fobjects) linker(objects, ext_filename, libraries=libraries, library_dirs=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=ext.language) def _add_dummy_mingwex_sym(self, c_sources): build_src = self.get_finalized_command("build_src").build_src build_clib = self.get_finalized_command("build_clib").build_clib objects = self.compiler.compile([os.path.join(build_src, "gfortran_vs2003_hack.c")], output_dir=self.build_temp) self.compiler.create_static_lib( objects, "_gfortran_workaround", output_dir=build_clib, debug=self.debug) def _process_unlinkable_fobjects(self, objects, libraries, fcompiler, library_dirs, unlinkable_fobjects): libraries = list(libraries) objects = list(objects) unlinkable_fobjects = list(unlinkable_fobjects) # Expand possible fake static libraries to objects for lib in list(libraries): for libdir in library_dirs: fake_lib = os.path.join(libdir, lib + '.fobjects') if os.path.isfile(fake_lib): # Replace fake static library libraries.remove(lib) with open(fake_lib, 'r') as f: unlinkable_fobjects.extend(f.read().splitlines()) # Expand C objects c_lib = os.path.join(libdir, lib + '.cobjects') with open(c_lib, 'r') as f: objects.extend(f.read().splitlines()) # Wrap unlinkable objects to a linkable one if unlinkable_fobjects: fobjects = [os.path.relpath(obj) for obj in unlinkable_fobjects] wrapped = fcompiler.wrap_unlinkable_objects( fobjects, output_dir=self.build_temp, extra_dll_dir=self.extra_dll_dir) objects.extend(wrapped) return objects, libraries def _libs_with_msvc_and_fortran(self, fcompiler, c_libraries, c_library_dirs): if fcompiler is None: return for libname in c_libraries: if libname.startswith('msvc'): continue fileexists = False for libdir in c_library_dirs or []: libfile = os.path.join(libdir, '%s.lib' % (libname)) if os.path.isfile(libfile): fileexists = True break if fileexists: continue # make g77-compiled static libs available to MSVC fileexists = False for libdir in c_library_dirs: libfile = os.path.join(libdir, 'lib%s.a' % (libname)) if os.path.isfile(libfile): # copy libname.a file to name.lib so that MSVC linker # can find it libfile2 = os.path.join(self.build_temp, libname + '.lib') copy_file(libfile, libfile2) if self.build_temp not in c_library_dirs: c_library_dirs.append(self.build_temp) fileexists = True break if fileexists: continue log.warn('could not find library %r in directories %s' % (libname, c_library_dirs)) # Always use system linker when using MSVC compiler. f_lib_dirs = [] for dir in fcompiler.library_dirs: # correct path when compiling in Cygwin but with normal Win # Python if dir.startswith('/usr/lib'): s, o = exec_command(['cygpath', '-w', dir], use_tee=False) if not s: dir = o f_lib_dirs.append(dir) c_library_dirs.extend(f_lib_dirs) # make g77-compiled static libs available to MSVC for lib in fcompiler.libraries: if not lib.startswith('msvc'): c_libraries.append(lib) p = combine_paths(f_lib_dirs, 'lib' + lib + '.a') if p: dst_name = os.path.join(self.build_temp, lib + '.lib') if not os.path.isfile(dst_name): copy_file(p[0], dst_name) if self.build_temp not in c_library_dirs: c_library_dirs.append(self.build_temp) def get_source_files(self): self.check_extensions_list(self.extensions) filenames = [] for ext in self.extensions: filenames.extend(get_ext_source_files(ext)) return filenames def get_outputs(self): self.check_extensions_list(self.extensions) outputs = [] for ext in self.extensions: if not ext.sources: continue fullname = self.get_ext_fullname(ext.name) outputs.append(os.path.join(self.build_lib, self.get_ext_filename(fullname))) return outputs