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Fix the build for RedHat-based distribution #4

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Fix the build for RedHat-based distribution #4

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38 changes: 35 additions & 3 deletions setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
from distutils.core import Extension

import os, sys
import platform


def load_description():
Expand Down Expand Up @@ -40,7 +41,6 @@ def finalize_options(self):
build_ext.build_ext.finalize_options(self)

openssl_include = os.path.join(self.openssl, 'include')
openssl_lib = os.path.join(self.openssl, 'lib')

self.swig_opts = ['-I%s' % i for i in self.include_dirs + [openssl_include]] + ['-includeall', '-noproxy']
if self.swig_extra is not None:
Expand All @@ -49,8 +49,40 @@ def finalize_options(self):
else:
self.swig_opts.append(self.swig_extra)

self.include_dirs.append(openssl_include)
self.library_dirs.append(openssl_lib)
# This fixes the build on newer RedHat-based distros
# See https://gitlab.com/m2crypto/m2crypto/-/issues/100 for more info
if platform.system() == "Linux":
# For RedHat-based distros, the '-D__{arch}__' option for
# Swig needs to be normalized, particularly on i386.
mach = platform.machine().lower()
if mach in ('i386', 'i486', 'i586', 'i686'):
arch = '__i386__'
elif mach in ('ppc64', 'powerpc64', 'ppc64le', 'ppc64el'):
arch = '__powerpc64__'
elif mach in ('ppc', 'powerpc'):
arch = '__powerpc__'
else:
arch = '__%s__' % mach
self.swig_opts.append('-D%s' % arch)
if mach in ('ppc64le', 'ppc64el'):
self.swig_opts.append('-D_CALL_ELF=2')
if mach in ('arm64_be'):
self.swig_opts.append('-D__AARCH64EB__')

# Some Linux distributor has added the following line in
# /usr/include/openssl/opensslconf.h:
#
# #include "openssl-x85_64.h"
#
# This is fine with C compilers, because they are smart enough to
# handle 'local inclusion' correctly. Swig, on the other hand, is
# not as smart, and needs to be told where to find this file...
#
# Note that this is risky workaround, since it takes away the
# namespace that OpenSSL uses. If someone else has similarly
# named header files in /usr/include, there will be clashes.
self.swig_opts.append('-I' + os.path.join(openssl_include, 'openssl'))


m2ext = Extension(name="m2ext._m2ext",
sources=["swig/m2ext.i"],
Expand Down