[Spice-devel] [spice-protocol PATCH v2 01/10] macros: verify if __alloc_size__ works with clang

[Christophe Fergeau]

On Fri, Aug 14, 2015 at 06:24:22PM +0200, Victor Toso wrote:
> So we can avoid using using an attribute not supported for the compiler.
> 
> warning:
> ../spice-common/common/mem.h:91:80: warning: unknown attribute
> '__alloc_size__' ignored [-Wunknown-attributes]

Any idea if this is because your clang is too old, or because it only
knows of __attribute__((alloc_size(x,y)) which is what is documented at
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-g_t_0040code_007balloc_005fsize_007d-function-attribute-3080
?

According to
http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120521/058005.html
clang has support for this attribute.

Christophe
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