https://github.com/pysam-developers/pysam
Tip revision: c1869c85ab1e1b6403e72c7dff52302bec7a8abb authored by Andreas Heger on 01 April 2023, 21:14:24 UTC
Merge pull request #1178 from pysam-developers/update-release-notes
Merge pull request #1178 from pysam-developers/update-release-notes
Tip revision: c1869c8
cy_build.py
import os
import re
import sys
try:
from Cython.Distutils import build_ext
except ImportError:
from setuptools.command.build_ext import build_ext
from distutils.extension import Extension
from distutils.sysconfig import get_config_var, get_config_vars, get_python_lib, get_python_version
from pkg_resources import Distribution
if sys.platform == 'darwin':
config_vars = get_config_vars()
config_vars['LDSHARED'] = config_vars['LDSHARED'].replace('-bundle', '')
config_vars['SHLIB_EXT'] = '.so'
def is_pip_install():
if "_" in os.environ and os.environ["_"].endswith("pip"):
return True
if "pip-egg-info" in sys.argv:
return True
if re.search("/pip-.*-build/", __file__):
return True
return False
class CyExtension(Extension):
def __init__(self, *args, **kwargs):
self._init_func = kwargs.pop("init_func", None)
Extension.__init__(self, *args, **kwargs)
def extend_includes(self, includes):
self.include_dirs.extend(includes)
def extend_macros(self, macros):
self.define_macros.extend(macros)
def extend_extra_objects(self, objs):
self.extra_objects.extend(objs)
class cy_build_ext(build_ext):
def _get_egg_name(self):
ei_cmd = self.get_finalized_command("egg_info")
return Distribution(
None, None, ei_cmd.egg_name, ei_cmd.egg_version, get_python_version(),
self.distribution.has_ext_modules() and self.plat_name).egg_name()
def build_extension(self, ext):
if isinstance(ext, CyExtension) and ext._init_func:
ext._init_func(ext)
if not self.inplace:
ext.library_dirs.append(os.path.join(self.build_lib, "pysam"))
if sys.platform == 'darwin':
# The idea is to give shared libraries an install name of the form
# `@rpath/<library-name.so>`, and to set the rpath equal to
# @loader_path. This will allow Python packages to find the library
# in the expected place, while still giving enough flexibility to
# external applications to link against the library.
relative_module_path = ext.name.replace(".", os.sep) + (get_config_var('EXT_SUFFIX') or get_config_var('SO'))
library_path = os.path.join(
"@rpath", os.path.basename(relative_module_path)
)
if not ext.extra_link_args:
ext.extra_link_args = []
ext.extra_link_args += ['-dynamiclib',
'-rpath', '@loader_path',
'-Wl,-headerpad_max_install_names',
'-Wl,-install_name,%s' % library_path,
'-Wl,-x']
else:
if not ext.extra_link_args:
ext.extra_link_args = []
ext.extra_link_args += ['-Wl,-rpath,$ORIGIN']
build_ext.build_extension(self, ext)