python3 has wrong LINKFORSHARED in module sysconfig

[tnilanon]

I have python3 built by Homebrew with --with-quicktest.
When run:

import distutils.sysconfig
distutils.sysconfig.get_config_var('LINKFORSHARED')

it returns '-Wl,-stack_size,1000000 -framework CoreFoundation Python.framework/Versions/3.4/Python'

I have graph-tool's configure script that calls this method. Then it looks for Python.framework/Versions/3.4/Python in /System/Library/Frameworks. This directory does not exist since it is in #{HOMEBREW_PREFIX}/Cellar/python3/3.4.3/Frameworks instead.

Please advise. I think sysconfig is not supposed to return these settings.

[tnilanon]

Nevermind. Seems to be an outdated method: http://bugs.python.org/issue3588

[mistydemeo]

Closing based on the upstream report - thanks!

[tdsmith]

We try to fix this in siteconfig; it looks like we're failing, so I'd like to fix it, even if other tools should know better.

[tdsmith]

I guess the mechanism changed:

>>> _sysconfigdata.build_time_vars["LINKFORSHARED"]
'-u _PyMac_Error /usr/local/opt/python3/Frameworks/Python.framework/Versions/3.5/Python'
>>> import distutils.sysconfig
>>> distutils.sysconfig.get_config_var("LINKFORSHARED")
'-Wl,-stack_size,1000000  -framework CoreFoundation Python.framework/Versions/3.5/Python'

It looks like we should inreplace /usr/local/opt/python3/Frameworks/Python.framework/Versions/3.5/lib/python3.5/config-3.5m/Makefile instead of doing tricks in siteconfig.

[tnilanon]

Thanks for taking care of this