setup.py

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#!/usr/bin/python

from os import getenv

cc = getenv("CC")
if cc == "clang":
    from _sysconfigdata import build_time_vars
    from re import sub
    build_time_vars["CFLAGS"] = sub("-specs=[^ ]+", "", build_time_vars["CFLAGS"])

from distutils.core import setup, Extension

from distutils.command.build_ext   import build_ext   as _build_ext
from distutils.command.install_lib import install_lib as _install_lib

class build_ext(_build_ext):
    def finalize_options(self):
        _build_ext.finalize_options(self)
        self.build_lib  = build_lib
        self.build_temp = build_tmp

class install_lib(_install_lib):
    def finalize_options(self):
        _install_lib.finalize_options(self)
        self.build_dir = build_lib


cflags = getenv('CFLAGS', '').split()
# switch off several checks (need to be at the end of cflags list)
cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter' ]
if cc != "clang":
    cflags += ['-Wno-cast-function-type' ]

src_perf  = getenv('srctree') + '/tools/perf'
build_lib = getenv('PYTHON_EXTBUILD_LIB')
build_tmp = getenv('PYTHON_EXTBUILD_TMP')
libtraceevent = getenv('LIBTRACEEVENT')
libapikfs = getenv('LIBAPI')

ext_sources = [f.strip() for f in open('util/python-ext-sources')
                if len(f.strip()) > 0 and f[0] != '#']

# use full paths with source files
ext_sources = list(map(lambda x: '%s/%s' % (src_perf, x) , ext_sources))

perf = Extension('perf',
          sources = ext_sources,
          include_dirs = ['util/include'],
          extra_compile_args = cflags,
          extra_objects = [libtraceevent, libapikfs],
                 )

setup(name='perf',
      version='0.1',
      description='Interface with the Linux profiling infrastructure',
      author='Arnaldo Carvalho de Melo',
      author_email='acme@redhat.com',
      license='GPLv2',
      url='http://perf.wiki.kernel.org',
      ext_modules=[perf],
      cmdclass={'build_ext': build_ext, 'install_lib': install_lib})