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* conf_post.h (ATTRIBUTE_ALLOC_SIZE): Port to clang 3.5.0.

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Apparently clang removed support for the alloc_size attribute.
This commit is contained in:
Paul Eggert 2015-01-07 23:11:36 -08:00
parent f6a27d26dc
commit ce5c361c14
2 changed files with 6 additions and 1 deletions
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src/ChangeLog
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@ -1,5 +1,8 @@
2015-01-08 Paul Eggert <eggert@cs.ucla.edu>
* conf_post.h (ATTRIBUTE_ALLOC_SIZE): Port to clang 3.5.0.
Apparently clang removed support for the alloc_size attribute.
Port Qnil==0 XUNTAG to clang
clang has undefined behavior if the program subtracts an integer
from (char *) 0. Problem reported by YAMAMOTO Mitsuharu in:

4
src/conf_post.h
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@ -245,7 +245,9 @@ extern void _DebPrint (const char *fmt, ...);
# define ATTRIBUTE_MALLOC
#endif
#if 4 < __GNUC__ + (3 <= __GNUC_MINOR__)
#if (__clang__ \
? __has_attribute (alloc_size) \
: 4 < __GNUC__ + (3 <= __GNUC_MINOR__))
# define ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
#else
# define ATTRIBUTE_ALLOC_SIZE(args)