Viewing file:  build_ext.py (21.97 KB) -rw-r--r--
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""" Modified version of build_ext that handles fortran source files.
"""
from __future__ import division, absolute_import, print_function
import os
import sys
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
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
try:
set
except NameError:
from sets import Set as set
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()
# 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()
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)
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
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 _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
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