Ronald Oussoren <ronaldousso...@mac.com> added the comment:
The root cause of having the flags twice is that the Makefile explicitly sets
LDFLAGS in the environment before when running setup.py, and that distutils
appens the value of $(LDFLAGS) to $(LDSHARED) when LDFLAGS is set in the
environment.
Line from the makefile:
$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' LDFLAGS='$(LDFLAGS)'
OPT='$(OPT)' ./$(BUILDPYTHON) -E $(srcdir)/setup.py build;
And in Lib/distutils/ccompiler.py (in customize_compiler):
if 'LDFLAGS' in os.environ:
ldshared = ldshared + ' ' + os.environ['LDFLAGS']
A quick workaround to remove the duplicate flags is to explictly remove the
related values from os.environ before calling main in setup.py:
# --install-platlib
if __name__ == '__main__':
import os
del os.environ['LDFLAGS']
main()
I've attached a patch that implements this behavior. I'm not 100% sure this is
the right solution because sysconfig._parse_makefile also looks at the
environment and it may be better to remove the code from
ccompiler.customize_compiler instead.
----------
keywords: +patch
nosy: +tarek
Added file: http://bugs.python.org/file18181/setup.py.patch
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<http://bugs.python.org/issue9047>
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