Fixed bug 3791 - SDL_bits.h: __builtin_clz is supported in gcc >= 3.4

Ozkan Sezer __builtin_clz is supported in gcc >= 3.4. The following patchlet adjusts SDL_bits.h for it.
libsdl-org · Aug 31, 2017 · ff76f8e · ff76f8e
1 parent 6c38c90
commit ff76f8e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/include/SDL_bits.h b/include/SDL_bits.h
@@ -60,7 +60,7 @@ extern _inline int _SDL_clz_watcom (Uint32);
 SDL_FORCE_INLINE int
 SDL_MostSignificantBitIndex32(Uint32 x)
 {
-#if defined(__GNUC__) && __GNUC__ >= 4
+#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
     /* Count Leading Zeroes builtin in GCC.
      * http://gcc.gnu.org/onlinedocs/gcc-4.3.4/gcc/Other-Builtins.html
      */