Do not throw compiler error if asm code needs alignment, but we do not know

[ffmpeg] / libavutil / common.h

diff --git a/libavutil/common.h b/libavutil/common.h
index d8f2f6414f67104ef7cc1942ecc8038a16c43050..5f4757277074a43a2902b85d0e613feee9abd19d 100644 (file)
--- a/libavutil/common.h
+++ b/libavutil/common.h
@@ -35,7 +35,11 @@
 #include <stdlib.h>
 #include <string.h>
 
-#define AV_GCC_VERSION_AT_LEAST(x,y) (defined(__GNUC__) && (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y))
+#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)
@@ -70,7 +74,7 @@
 #endif
 
 #ifndef av_cold
-#if (!defined(__ICC) || __ICC > 1100) && AV_GCC_VERSION_AT_LEAST(4,3)
+#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,3)
 #    define av_cold __attribute__((cold))
 #else
 #    define av_cold
@@ -78,7 +82,7 @@
 #endif
 
 #ifndef av_flatten
-#if AV_GCC_VERSION_AT_LEAST(4,1)
+#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,1)
 #    define av_flatten __attribute__((flatten))
 #else
 #    define av_flatten
@@ -123,6 +127,7 @@
 
 #define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
 #define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
+#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1))
 
 /* misc math functions */
 extern const uint8_t ff_log2_tab[256];