perl/SOURCES/perl-5.36.0-Add-definition-of-OPTIMIZE-to-.ph-files.patch
2023-05-16 07:08:34 +00:00

40 lines
1.4 KiB
Diff

From 6d9d949fb4962e32636aee48a948081d8936d318 Mon Sep 17 00:00:00 2001
From: Jitka Plesnikova <jplesnik@redhat.com>
Date: Wed, 11 Jan 2023 09:12:18 +0100
Subject: [PATCH] Add definition of OPTIMIZE to .ph files
The fortify.h header includes a test to ensure that -O is used when
compiling with _FORTIFY_SOURCE, and the header looks for OPTIMIZE, which
is set by the compiler whenever -O is used. Perl translates this test
to the .ph file, but nothing ever sets OPTIMIZE. This causes a warning
for anything that uses features.ph.
_FORTIFY_SOURCE is defined in /usr/lib64/perl5/_h2ph_pre.ph which is
generated by h2ph. It uses value of @Config{'ccsymbols', 'cppsymbols',
'cppccsymbols'} which does not contain definition for OPTIMIZE.
The patch updated h2ph to add OPTIMIZE if -O is used.
---
utils/h2ph.PL | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/utils/h2ph.PL b/utils/h2ph.PL
index afa53c2..3950d11 100644
--- a/utils/h2ph.PL
+++ b/utils/h2ph.PL
@@ -865,6 +865,11 @@ sub _extract_cc_defines
my $allsymbols = join " ",
@Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'};
+ # If optimizing -O2 is used, add the definition
+ if ($Config{'ccflags'} =~ /(?:\s+|^)-O([\d]+)(?:\s+|$)/) {
+ $allsymbols .= " __OPTIMIZE__=$1";
+ }
+
# Split compiler pre-definitions into 'key=value' pairs:
while ($allsymbols =~ /([^\s]+)=((\\\s|[^\s])+)/g) {
$define{$1} = $2;
--
2.39.0