postgresql/src
Andres Freund ce073d0144 perl: Hide warnings inside perl.h when using gcc compatible compiler
New versions of perl trigger warnings within perl.h with our compiler
flags. At least -Wdeclaration-after-statement, -Wshadow=compatible-local are
known to be problematic.

To avoid these warnings, conditionally use #pragma GCC system_header before
including plperl.h.

Alternatively, we could add the include paths for problematic headers with
-isystem, but that is a larger hammer and is harder to search for.

A more granular alternative would be to use #pragma GCC diagnostic
push/ignored/pop, but gcc warns about unknown warnings being ignored, so every
to-be-ignored-temporarily compiler warning would require its own pg_config.h
symbol and #ifdef.

As the warnings are voluminous, it makes sense to backpatch this change. But
don't do so yet, we first want gather buildfarm coverage - it's e.g. possible
that some compiler claiming to be gcc compatible has issues with the pragma.

Author: Andres Freund <andres@anarazel.de>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: Discussion: https://postgr.es/m/20221228182455.hfdwd22zztvkojy2@awork3.anarazel.de
2023-01-02 15:50:33 -08:00
..
backend Avoid reference to nonexistent array element in ExecInitAgg(). 2023-01-02 16:17:00 -05:00
bin Fix some incorrectness in upgrade_adapt.sql on query for WITH OIDS 2022-12-23 11:27:17 +09:00
common Change some errdetail() to errdetail_internal() 2022-09-28 17:14:53 +02:00
fe_utils Clean up assorted failures under clang's -fsanitize=undefined checks. 2022-03-03 18:13:24 -05:00
include perl: Hide warnings inside perl.h when using gcc compatible compiler 2023-01-02 15:50:33 -08:00
interfaces Fix comment in fe-auth-scram.c 2022-11-30 08:38:33 +09:00
makefiles Remove libpq.rc, use win32ver.rc for libpq 2020-01-15 15:06:12 +01:00
pl perl: Hide warnings inside perl.h when using gcc compatible compiler 2023-01-02 15:50:33 -08:00
port Re-allow building on Microsoft Visual Studio 2013. 2022-11-10 10:23:49 -05:00
template On NetBSD, force dynamic symbol resolution at postmaster start. 2022-08-30 17:29:08 -04:00
test Re-adjust drop-index-concurrently-1 isolation test 2022-12-16 11:41:28 +13:00
timezone Update time zone data files to tzdata release 2022f. 2022-11-01 17:09:04 -04:00
tools Fix binary mismatch for MSVC plperl vs gcc built perl libs 2022-11-27 09:18:32 -05:00
tutorial Doc: sync src/tutorial/basics.source with SGML documentation. 2022-11-19 13:09:14 -05:00
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
DEVELOPERS
Makefile Fix partial-build problems introduced by having more generated headers. 2018-04-09 16:42:10 -04:00
Makefile.global.in Prevent port collisions between concurrent TAP tests 2022-11-22 10:52:24 -05:00
Makefile.shlib AIX: Fix missing libpq symbols by respecting SHLIB_EXPORTS. 2021-09-06 11:28:02 -07:00
nls-global.mk NLS: Fix backend gettext triggers 2019-09-23 09:04:20 +02:00