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https://bugs.gentoo.org/867832
https://rt.cpan.org/Public/Bug/Display.html?id=141822
From 5fb151e46ce03c960ae05405c6f6360ccb7efa6f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
Date: Fri, 18 Mar 2022 12:28:26 +0100
Subject: [PATCH] Fix configure check with optimizing and lto-enabled GCC 12
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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After upgrading GCC to version 12 on Linux (where strlcpy() does not exist)
tests fail like this if CFLAGS="-O1 -flto=auto":
make[1]: Entering directory '/home/test/fedora/perl-File-RsyncP/File-RsyncP-0.76/FileList'
"/usr/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- FileList.bs ../blib/arch/auto/File/RsyncP/FileList/FileList.bs 644
PERL_DL_NONLAZY=1 "/usr/bin/perl" "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "undef *Test::Harness::Switches; test_harness(0, '../blib/lib', '../blib/arch')" t/*.t
t/exclude.t ... Can't load '/home/test/fedora/perl-File-RsyncP/File-RsyncP-0.76/FileList/../blib/arch/auto/File/RsyncP/FileList/FileList.so' for module File::RsyncP::FileList: /home/test/fedora/perl-File-RsyncP/File-RsyncP-0.76/FileList/../blib/arch/auto/File/RsyncP/FileList/FileList.so: undefined symbol: strlcpy at /usr/lib64/perl5/DynaLoader.pm line 193.
The new compiler optimizes out a check for strlcpy() perform by
FileList/configure script. This patch changes the check to actually depend on
strlcpy() function address. That should prevent a compiler from optimizing it
out.
CPAN RT#141822
Signed-off-by: Petr Písař <ppisar@redhat.com>
--- a/FileList/configure
+++ b/FileList/configure
@@ -9330,7 +9330,7 @@ char (*f) () = $ac_func;
int
main ()
{
-return f != $ac_func;
+return (int)f;
;
return 0;
}
--
2.34.1
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