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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: 6422e62fbc5c65a2165a72c97c880cfa9a80e957)

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>
This commit is contained in:
Alexander Kanavin
2022-06-06 14:01:26 +02:00
committed by Richard Purdie
parent 6b9af87f3e
commit b2b24de709
1 changed files with 1 additions and 0 deletions
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meta/recipes-devtools/perl/perl_5.36.0.bb
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@@ -61,6 +61,7 @@ do_configure:class-target() {
-Dlibpth='${libdir} ${base_libdir}' \ -Dlibpth='${libdir} ${base_libdir}' \
-Dglibpth='${libdir} ${base_libdir}' \ -Dglibpth='${libdir} ${base_libdir}' \
-Alddlflags=' ${LDFLAGS}' \ -Alddlflags=' ${LDFLAGS}' \
-Dd_gnulibc=define \
${PACKAGECONFIG_CONFARGS} ${PACKAGECONFIG_CONFARGS}
#perl.c uses an ARCHLIB_EXP define to generate compile-time code that #perl.c uses an ARCHLIB_EXP define to generate compile-time code that