postgresql/config
Tom Lane de447bb8e6 Suppress warning about stack_base_ptr with late-model GCC.
GCC 12 complains that set_stack_base is storing the address of
a local variable in a long-lived pointer.  This is an entirely
reasonable warning (indeed, it just helped us find a bug);
but that behavior is intentional here.  We can work around it
by using __builtin_frame_address(0) instead of a specific local
variable; that produces an address a dozen or so bytes different,
in my testing, but we don't care about such a small difference.
Maybe someday a compiler lacking that function will start to issue
a similar warning, but we'll worry about that when it happens.

Patch by me, per a suggestion from Andres Freund.  Back-patch to
v12, which is as far back as the patch will go without some pain.
(Recently-established project policy would permit a back-patch as
far as 9.2, but I'm disinclined to expend the work until GCC 12
is much more widespread.)

Discussion: https://postgr.es/m/3773792.1645141467@sss.pgh.pa.us
2022-02-17 22:46:01 -05:00
..
Makefile Install our "missing" script where PGXS builds can find it. 2015-12-11 16:15:05 -05:00
ax_pthread.m4 Update config/ax_pthread.m4 to latest upstream version. 2018-11-19 15:05:33 -05:00
c-compiler.m4 Suppress warning about stack_base_ptr with late-model GCC. 2022-02-17 22:46:01 -05:00
c-library.m4 Enable Unix-domain sockets support on Windows 2020-03-28 15:01:01 +01:00
check_decls.m4 Fix configure's AC_CHECK_DECLS tests to work correctly with clang. 2018-11-19 12:01:47 -05:00
check_modules.pl Pacify perlcritic. 2021-11-22 15:57:31 -05:00
config.guess Update config.guess and config.sub 2021-04-21 16:33:40 +02:00
config.sub Update config.guess and config.sub 2021-04-21 16:33:40 +02:00
general.m4 Rename configure.in to configure.ac 2020-07-24 10:42:08 +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
llvm.m4 jit: configure: Explicitly reference 'native' component. 2020-12-07 19:34:13 -08:00
missing Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
perl.m4 Adjust configure to insist on Perl version >= 5.8.3. 2021-10-07 14:26:17 -04:00
pkg.m4 ICU support 2017-03-23 15:28:48 -04:00
prep_buildtree Fix vpath build 2019-03-27 23:36:00 +01:00
programs.m4 Remove configure's check for rl_completion_append_character. 2022-02-02 23:01:56 -05:00
python.m4 plpython: Reject Python 2 during build configuration. 2022-02-16 22:47:35 -08:00
tcl.m4 configure: More use of AC_ARG_VAR 2019-01-18 08:38:34 +01:00