Fix for recent optimization commit in endian switch

Pre-4.8 GCC had a bug which lead to non-exposed __builtin_bswap16() symbol. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52624 for details.
2015-07-14 11:33:50 +02:00 · 2015-07-14 11:33:50 +02:00 · cba0858ccd
parent 82740cd282
commit cba0858ccd
1 changed files with 1 additions and 1 deletions
--- a/source/blender/blenlib/BLI_endian_switch_inline.h
+++ b/source/blender/blenlib/BLI_endian_switch_inline.h
@ -42,7 +42,7 @@ BLI_INLINE void BLI_endian_switch_int16(short *val)
 }
 BLI_INLINE void BLI_endian_switch_uint16(unsigned short *val)
 {
-#ifdef __GNUC__
+#if (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 408))  /* gcc4.8+ only */
 	*val = __builtin_bswap16(*val);
 #else
 	unsigned short tval = *val;