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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
config Improve (I hope) our autolocation of the Python shared library. 2016-10-04 15:23:07 -04:00
contrib Extend framework from commit 53be0b1ad to report latch waits. 2016-10-04 11:01:42 -04:00
doc Extend framework from commit 53be0b1ad to report latch waits. 2016-10-04 11:01:42 -04:00
src Fix another Windows compile break. 2016-10-04 13:14:19 -04:00
.dir-locals.el emacs: Set indent-tabs-mode in perl-mode 2015-04-12 23:53:23 -04:00
.gitattributes Fix whitespace and remove obsolete gitattributes entry 2016-03-13 16:03:13 -04:00
.gitignore Allow .so minor version numbers above 9 in .gitignore. 2016-08-15 17:35:35 -04:00
aclocal.m4 Replace our hacked version of ax_pthread.m4 with latest upstream version. 2015-07-08 20:36:06 +03:00
configure Improve (I hope) our autolocation of the Python shared library. 2016-10-04 15:23:07 -04:00
configure.in Improve (I hope) our autolocation of the Python shared library. 2016-10-04 15:23:07 -04:00
COPYRIGHT Update copyright for 2016 2016-01-02 13:33:40 -05:00
GNUmakefile.in Have "make coverage" recurse into contrib as well 2016-09-05 18:44:36 -03:00
HISTORY Improve text of stub HISTORY file. 2014-02-12 18:16:17 -05:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00
README.git Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00

README 

PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	http://www.postgresql.org/download

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.