On 4 Apr, 2013, at 14:46, Julian Taylor <jtaylor.deb...@googlemail.com> wrote:
> The values on macos for these variables still look wrong in 3.3.1rc1:
>
> ./configure --prefix=/Users/jtaylor/tmp/py3.3.1 --enable-shared
> on macosx-10.8-x86_64
>
> sys.version_info(major=3, minor=3, micro=1, releaselevel='candidate',
> serial=1)
> SO .so
> EXT_SUFFIX .so
> SHLIB_SUFFIX 0
>
>
> the only correct one here is EXT_SUFFIX, SHLIB_SUFFIX should be .dylib
> (libpython is a .dylib) and .SO possibly too given for what it was used in
> the past.
SO is explicitly defined as being the same as EXT_SUFFIX (in Makefile.pre.in
for 3.3), and is gone in default.
I'm not sure that SHLIB_SUFFIX is supposed to be because it isn't used other
than to calculate the suffix to use for extensions and that shouldn't change on
OSX for backward compatiblity reasons, and if it were changed I'd much rather
see it changes to something like '.pyext' instead of '.dylib'. But that ship
has long sailed, the very limited advantages of using a unique filename suffix
for Python extensions isn't worth the very real breakage of actually changing
it :-)
Oh, and at least setup.py assumes that
sysconfig.get_config_var('EXT_SUFFIX').endswith(sysconfig.get_config_var('SHLIB_SUFFIX')).
BTW. This is a problem for a lot of the information you can retrieve with
sysconfig.get_config_var(), a large subset of the information is only useful
during the build/installation of Python itself and as none of them are actually
documented using sysconfig.get_config_var() is somewhat of a black art.
>
> 3.3.0 also returns wrong values
> SO .so
> EXT_SUFFIX None
> SHLIB_SUFFIX ""
Could you file an issue on the tracker about this?
Ronald
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