postgresql/config
Tom Lane 1621a75531 Absorb -D_USE_32BIT_TIME_T switch from Perl, if relevant.
Commit 3c163a7fc's original choice to ignore all #define symbols whose
names begin with underscore turns out to be too simplistic.  On Windows,
some Perl installations are built with -D_USE_32BIT_TIME_T, and we must
absorb that or we get the wrong result for sizeof(PerlInterpreter).

This effectively re-reverts commit ef58b87df, which injected that symbol
in a hacky way, making it apply to all of Postgres not just PL/Perl.
More significantly, it did so on *all* 32-bit Windows builds, even when
the Perl build to be used did not select this option; so that it fails
to work properly with some newer Perl builds.

By making this change, we would be introducing an ABI break in 32-bit
Windows builds; but fortunately we have not used type time_t in any
exported Postgres APIs in a long time.  So it should be OK, both for
PL/Perl itself and for third-party extensions, if an extension library
is built with a different _USE_32BIT_TIME_T setting than the core code.

Patch by me, based on research by Ashutosh Sharma and Robert Haas.
Back-patch to all supported branches, as commit 3c163a7fc was.

Discussion: https://postgr.es/m/CANFyU97OVQ3+Mzfmt3MhuUm5NwPU=-FtbNH5Eb7nZL9ua8=rcA@mail.gmail.com
2017-08-14 11:48:59 -04:00
..
ac_func_accept_argtypes.m4 Enable compiling with the mingw-w64 32 bit compiler. 2011-12-10 15:35:41 -05:00
acx_pthread.m4 Revert changes to pthread configure tests on REL9_5_STABLE. 2015-07-09 10:59:10 +03:00
c-compiler.m4 Improve configure test for the sse4.2 crc instruction. 2015-08-17 11:23:31 +02:00
c-library.m4 Cope if platform declares mbstowcs_l(), but not locale_t, in <xlocale.h>. 2016-03-15 13:19:57 -04:00
config.guess Update config.guess and config.sub 2015-08-19 11:45:52 -04:00
config.sub Update config.guess and config.sub 2015-08-19 11:45:52 -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
Makefile Install our "missing" script where PGXS builds can find it. 2015-12-11 16:15:06 -05:00
missing
perl.m4 Absorb -D_USE_32BIT_TIME_T switch from Perl, if relevant. 2017-08-14 11:48:59 -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 Remove configure check prohibiting threaded libpython on OpenBSD. 2015-05-26 22:14:59 -04:00
tcl.m4 Accept tcl 8.6 in configure's probe for tclsh. 2014-05-10 10:48:01 -04:00
test_quiet_include.h Blacklist xlc 32-bit inlining. 2015-07-29 22:52:43 -04:00