Move gcc attribute macros to new header libavutil/attributes.h

Originally committed as revision 22346 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavutil/common.h

@@ -34,89 +34,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include "attributes.h"
 
 #ifdef HAVE_AV_CONFIG_H
 #include "config.h"
 #endif
 
-#ifdef __GNUC__
-#    define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y)
-#else
-#    define AV_GCC_VERSION_AT_LEAST(x,y) 0
-#endif
-
-#ifndef av_always_inline
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-#    define av_always_inline __attribute__((always_inline)) inline
-#else
-#    define av_always_inline inline
-#endif
-#endif
-
-#ifndef av_noinline
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-#    define av_noinline __attribute__((noinline))
-#else
-#    define av_noinline
-#endif
-#endif
-
-#ifndef av_pure
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-#    define av_pure __attribute__((pure))
-#else
-#    define av_pure
-#endif
-#endif
-
-#ifndef av_const
-#if AV_GCC_VERSION_AT_LEAST(2,6)
-#    define av_const __attribute__((const))
-#else
-#    define av_const
-#endif
-#endif
-
-#ifndef av_cold
-#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,3)
-#    define av_cold __attribute__((cold))
-#else
-#    define av_cold
-#endif
-#endif
-
-#ifndef av_flatten
-#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,1)
-#    define av_flatten __attribute__((flatten))
-#else
-#    define av_flatten
-#endif
-#endif
-
-#ifndef attribute_deprecated
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-#    define attribute_deprecated __attribute__((deprecated))
-#else
-#    define attribute_deprecated
-#endif
-#endif
-
-#ifndef av_unused
-#if defined(__GNUC__)
-#    define av_unused __attribute__((unused))
-#else
-#    define av_unused
-#endif
-#endif
-
-#ifndef av_uninit
-#if defined(__GNUC__) && !defined(__ICC)
-#    define av_uninit(x) x=x
-#else
-#    define av_uninit(x) x
-#endif
-#endif
-
 #ifdef HAVE_AV_CONFIG_H
 #   include "intmath.h"
 #endif