Tom Lane 46ddbbb117 Improve (I hope) our autolocation of the Python shared library. ... Older versions of Python produce garbage (or at least useless) values of get_config_vars('LDLIBRARY'). Newer versions produce garbage (or at least useless) values of get_config_vars('SO'), which was defeating our configure logic that attempted to identify where the Python shlib really is. The net result, at least with a stock Python 3.5 installation on macOS, was that we were linking against a static library in the mistaken belief that it was a shared library. This managed to work, if you count statically absorbing libpython into plpython.so as working. But it no longer works as of commit d51924be8, because now we get separate static copies of libpython in plpython.so and hstore_plpython.so, and those can't interoperate on the same data. There are some other infelicities like assuming that nobody ever installs a private version of Python on a macOS machine. Hence, forget about looking in $python_configdir for the Python shlib; as far as I can tell no version of Python has ever put one there, and certainly no currently-supported version does. Also, rather than relying on get_config_vars('SO'), just try all the possibilities for shlib extensions. Also, rather than trusting Py_ENABLE_SHARED, believe we've found a shlib only if it has a recognized extension. Last, explicitly cope with the possibility that the shlib is really in /usr/lib and $python_libdir is a red herring --- this is the actual situation on older macOS, but we were only accidentally working with it. Discussion: <5300.1475592228@sss.pgh.pa.us>		2016-10-04 15:23:07 -04:00
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ac_func_accept_argtypes.m4	Replace obsolete autoconf macros with their modern replacements.	2015-07-02 19:21:23 +03:00
ax_pthread.m4	Update ax_pthread.m4 to an experimental draft version from upstream.	2015-07-30 14:14:50 +03:00
c-compiler.m4	Use return instead of exit() in configure	2016-09-30 14:03:57 -04:00
c-library.m4	Add missing include files to configure tests	2016-09-30 14:04:10 -04:00
config.guess	Update config.guess and config.sub	2016-05-06 14:02:44 -04:00
config.sub	Update config.guess and config.sub	2016-05-06 14:02:44 -04:00
docbook.m4	Fix configure's search for collateindex.pl.	2012-03-22 00:46:03 -04:00
general.m4	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
install-sh	Fix install-strip on Mac OS X	2012-08-21 23:42:43 -04:00
libtool.m4	Rename AC_PROG_LD* macros to PGAC_PROG_LD*. This avoids clashes with the	2004-07-17 18:53:56 +00:00
Makefile	Install our "missing" script where PGXS builds can find it.	2015-12-11 16:15:05 -05:00
missing	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
perl.m4	Fix configure's incorrect version tests for flex and perl.	2016-05-02 11:18:10 -04:00
prep_buildtree	find -path is not portable, so use grep -v instead.	2010-10-25 10:04:00 -03:00
programs.m4	Fix configure's incorrect version tests for flex and perl.	2016-05-02 11:18:10 -04:00
python.m4	Improve (I hope) our autolocation of the Python shared library.	2016-10-04 15:23:07 -04:00
tcl.m4	Mop-up for setting minimum Tcl version to 8.4.	2016-03-13 17:14:49 -04:00