diff options
Diffstat (limited to 'ext/fiddle/fiddle.h')
| -rw-r--r-- | ext/fiddle/fiddle.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/ext/fiddle/fiddle.h b/ext/fiddle/fiddle.h index 10eb9ceedb..348baa9ab9 100644 --- a/ext/fiddle/fiddle.h +++ b/ext/fiddle/fiddle.h @@ -118,7 +118,7 @@ #define TYPE_UINT -TYPE_INT #define TYPE_LONG 5 #define TYPE_ULONG -TYPE_LONG -#if HAVE_LONG_LONG +#ifdef HAVE_LONG_LONG #define TYPE_LONG_LONG 6 #define TYPE_ULONG_LONG -TYPE_LONG_LONG #endif @@ -126,6 +126,7 @@ #define TYPE_DOUBLE 8 #define TYPE_VARIADIC 9 #define TYPE_CONST_STRING 10 +#define TYPE_BOOL 11 #define TYPE_INT8_T TYPE_CHAR #define TYPE_UINT8_T -TYPE_INT8_T @@ -196,7 +197,20 @@ #endif #define TYPE_UINTPTR_T (-TYPE_INTPTR_T) -#define ALIGN_OF(type) offsetof(struct {char align_c; type align_x;}, align_x) +/* GCC releases before GCC 4.9 had a bug in _Alignof. See GCC bug 52023 + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. + clang versions < 8.0.0 have the same bug. */ +#if defined(HAVE__ALIGNOF) +# /* Autoconf detected availability of a sane `_Alignof()`. */ +# define ALIGN_OF(type) RB_GNUC_EXTENSION(_Alignof(type)) +#elif (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112 \ + || (defined(__GNUC__) && __GNUC__ < 4 + (__GNUC_MINOR__ < 9) \ + && !defined(__clang__)) \ + || (defined(__clang__) && __clang_major__ < 8)) +# define ALIGN_OF(type) offsetof(struct {char align_c; type align_x;}, align_x) +#else +# define ALIGN_OF(type) _Alignof(type) +#endif #define ALIGN_VOIDP ALIGN_OF(void*) #define ALIGN_CHAR ALIGN_OF(char) |