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Noah Misch 65a00f3035 MSVC: Test whether 32-bit Perl needs -D_USE_32BIT_TIME_T. 
Commits 5a5c2feca3 and
b5178c5d08 introduced support for modern
MSVC-built, 32-bit Perl, but they broke use of MinGW-built, 32-bit Perl
distributions like Strawberry Perl and modern ActivePerl.  Perl has no
robust means to report whether it expects a -D_USE_32BIT_TIME_T ABI, so
test this.  Back-patch to 9.3 (all supported versions).

The chief alternative was a heuristic of adding -D_USE_32BIT_TIME_T when
$Config{gccversion} is nonempty.  That banks on every gcc-built Perl
using the same ABI.  gcc could change its default ABI the way MSVC once
did, and one could build Perl with gcc and the non-default ABI.

The GNU make build system could benefit from a similar test, without
which it does not support MSVC-built Perl.  For now, just add a comment.
Most users taking the special step of building Perl with MSVC probably
build PostgreSQL with MSVC.

Discussion: https://postgr.es/m/20171130041441.GA3161526@rfd.leadboat.com
 		2017-12-08 18:06:05 -08:00
..
Makefile Install our "missing" script where PGXS builds can find it. 2015-12-11 16:15:05 -05:00
ac_func_accept_argtypes.m4 Remove some configure header-file checks that we weren't really using. 2017-02-25 18:10:09 -05:00
ax_prog_perl_modules.m4 Make configure check for IPC::Run when --enable-tap-tests is specified. 2017-06-15 15:56:12 -04:00
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 Prevent int128 from requiring more than MAXALIGN alignment. 2017-11-14 15:03:55 -05:00
c-library.m4 Remove some configure header-file checks that we weren't really using. 2017-02-25 18:10:09 -05:00
config.guess Update config.guess and config.sub 2017-05-14 11:09:34 -04:00
config.sub Update config.guess and config.sub 2017-05-14 11:09:34 -04:00
docbook.m4 Convert documentation to DocBook XML 2017-11-23 09:44:28 -05:00
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
missing Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
perl.m4 MSVC: Test whether 32-bit Perl needs -D_USE_32BIT_TIME_T. 2017-12-08 18:06:05 -08:00
pkg.m4 ICU support 2017-03-23 15:28:48 -04:00
prep_buildtree find -path is not portable, so use grep -v instead. 2010-10-25 10:04:00 -03:00
programs.m4 Further improve consistency of configure's program searching. 2017-08-01 11:40:08 -04:00
python.m4 Further improve consistency of configure's program searching. 2017-08-01 11:40:08 -04:00
tcl.m4 Further improve consistency of configure's program searching. 2017-08-01 11:40:08 -04:00