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import sys, os
import subprocess
import errno
sources = ['c/_cffi_backend.c']
libraries = ['ffi']
include_dirs = ['/usr/include/ffi',
'/usr/include/libffi'] # may be changed by pkg-config
define_macros = []
library_dirs = []
extra_compile_args = []
extra_link_args = []
def _ask_pkg_config(resultlist, option, result_prefix='', sysroot=False):
pkg_config = os.environ.get('PKG_CONFIG','pkg-config')
try:
p = subprocess.Popen([pkg_config, option, 'libffi'],
stdout=subprocess.PIPE)
except OSError as e:
if e.errno != errno.ENOENT:
raise
else:
t = p.stdout.read().decode().strip()
if p.wait() == 0:
res = t.split()
# '-I/usr/...' -> '/usr/...'
for x in res:
assert x.startswith(result_prefix)
res = [x[len(result_prefix):] for x in res]
#print 'PKG_CONFIG:', option, res
#
sysroot = sysroot and os.environ.get('PKG_CONFIG_SYSROOT_DIR', '')
if sysroot:
# old versions of pkg-config don't support this env var,
# so here we emulate its effect if needed
res = [path if path.startswith(sysroot)
else sysroot + path
for path in res]
#
resultlist[:] = res
def ask_supports_thread():
import distutils.errors
from distutils.ccompiler import new_compiler
compiler = new_compiler(force=1)
try:
compiler.compile(['c/check__thread.c'])
except distutils.errors.CompileError:
print >> sys.stderr, "will not use '__thread' in the C code"
else:
define_macros.append(('USE__THREAD', None))
try:
os.unlink('c/check__thread.o')
except OSError:
pass
def use_pkg_config():
_ask_pkg_config(include_dirs, '--cflags-only-I', '-I', sysroot=True)
_ask_pkg_config(extra_compile_args, '--cflags-only-other')
_ask_pkg_config(library_dirs, '--libs-only-L', '-L', sysroot=True)
_ask_pkg_config(extra_link_args, '--libs-only-other')
_ask_pkg_config(libraries, '--libs-only-l', '-l')
if sys.platform == 'win32':
COMPILE_LIBFFI = 'c/libffi_msvc' # from the CPython distribution
else:
COMPILE_LIBFFI = None
if COMPILE_LIBFFI:
assert os.path.isdir(COMPILE_LIBFFI), "directory not found!"
include_dirs[:] = [COMPILE_LIBFFI]
libraries[:] = []
_filenames = [filename.lower() for filename in os.listdir(COMPILE_LIBFFI)]
_filenames = [filename for filename in _filenames
if filename.endswith('.c')]
if sys.maxsize > 2**32:
# 64-bit: unlist win32.c, and add instead win64.obj. If the obj
# happens to get outdated at some point in the future, you need to
# rebuild it manually from win64.asm.
_filenames.remove('win32.c')
extra_link_args.append(os.path.join(COMPILE_LIBFFI, 'win64.obj'))
sources.extend(os.path.join(COMPILE_LIBFFI, filename)
for filename in _filenames)
else:
use_pkg_config()
ask_supports_thread()
if __name__ == '__main__':
from setuptools import setup, Feature, Extension
setup(
name='cffi',
description='Foreign Function Interface for Python calling C code.',
long_description="""
CFFI
====
Foreign Function Interface for Python calling C code.
Please see the `Documentation <http://cffi.readthedocs.org/>`_.
Contact
-------
`Mailing list <https://groups.google.com/forum/#!forum/python-cffi>`_
""",
version='0.8',
packages=['cffi'],
zip_safe=False,
url='http://cffi.readthedocs.org',
author='Armin Rigo, Maciej Fijalkowski',
author_email='python-cffi@googlegroups.com',
license='MIT',
features={
'cextension': Feature(
"fast c backend for cpython",
standard='__pypy__' not in sys.modules,
ext_modules=[
Extension(name='_cffi_backend',
include_dirs=include_dirs,
sources=sources,
libraries=libraries,
define_macros=define_macros,
library_dirs=library_dirs,
extra_compile_args=extra_compile_args,
extra_link_args=extra_link_args,
),
],
),
},
install_requires=[
'pycparser',
]
)
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