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perl: enable _GNU_SOURCE define via d_gnulibc

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This is needed to properly support memmem() and friends under musl
as musl guards the declarations with _GNU_SOURCE define, and if the
declarations are not present, gcc will issue warnings and generate
assembly that assumes the functions return int (instead of e.g.
void*), with catastrophic consequences at runtime.

(From OE-Core rev: 79dc3f42958bfefe03a8240e2a57501c38d2bd3c)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 6422e62fbc5c65a2165a72c97c880cfa9a80e957)
Signed-off-by: Peter Hurley <peter@meraki.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Alexander Kanavin
2025-05-12 14:37:54 -07:00
committed by Steve Sakoman
parent 06b97d608e
commit d6a242831e
1 changed files with 1 additions and 0 deletions
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meta/recipes-devtools/perl/perl_5.34.3.bb
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@@ -70,6 +70,7 @@ do_configure:class-target() {
-Dlibpth='${libdir} ${base_libdir}' \
-Dglibpth='${libdir} ${base_libdir}' \
-Alddlflags=' ${LDFLAGS}' \
-Dd_gnulibc=define \
${PACKAGECONFIG_CONFARGS}
#perl.c uses an ARCHLIB_EXP define to generate compile-time code that