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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.
This commit is contained in:
Sam Lantinga 2017-08-31 15:17:59 -07:00
parent 6c38c9007b
commit ff76f8e5b4
1 changed files with 1 additions and 1 deletions
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2
include/SDL_bits.h
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@ -60,7 +60,7 @@ extern _inline int _SDL_clz_watcom (Uint32);
SDL_FORCE_INLINE int SDL_FORCE_INLINE int
SDL_MostSignificantBitIndex32(Uint32 x) 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. /* Count Leading Zeroes builtin in GCC.
* http://gcc.gnu.org/onlinedocs/gcc-4.3.4/gcc/Other-Builtins.html * http://gcc.gnu.org/onlinedocs/gcc-4.3.4/gcc/Other-Builtins.html
*/ */