diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb.hh')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-src/src/hb.hh | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb.hh index 857571b42fd..d09849e5653 100644 --- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb.hh +++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb.hh @@ -246,7 +246,15 @@ extern "C" void hb_free_impl(void *ptr); * Compiler attributes */ -#if (defined(__GNUC__) || defined(__clang__)) && defined(__OPTIMIZE__) +// gcc 10 has __has_builtin but not earlier versions. Sanction any gcc >= 5 +// clang defines it so no need. +#ifdef __has_builtin +#define hb_has_builtin __has_builtin +#else +#define hb_has_builtin(x) ((defined(__GNUC__) && __GNUC__ >= 5)) +#endif + +#if defined(__OPTIMIZE__) && hb_has_builtin(__builtin_expect) #define likely(expr) (__builtin_expect (!!(expr), 1)) #define unlikely(expr) (__builtin_expect (!!(expr), 0)) #else |