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sys/cdefs.h: export __attribute_alloc_size__

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Since we want to use this in installed headers, move it to the installed
sys/cdefs.h.  This requires a slight tweaking of the name (add trailing
underscores).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger
2012-12-30 13:07:07 -05:00
parent 6ff444c418
commit 2f62b9ee0c
4 changed files with 19 additions and 5 deletions
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9
misc/sys/cdefs.h
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@ -214,6 +214,15 @@
# define __attribute_malloc__ /* Ignore */
#endif
/* Tell the compiler which arguments to an allocation function
indicate the size of the allocation. */
#if __GNUC_PREREQ (4, 3)
# define __attribute_alloc_size__(params) \
__attribute__ ((__alloc_size__ params))
#else
# define __attribute_alloc_size__(params) /* Ignore. */
#endif
/* At some point during the gcc 2.96 development the `pure' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */