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Enable GCC's visibility attributes on GCC 4 or greater only.

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This commit is contained in:
Tilman Sauerbeck 2007-05-01 14:52:57 +02:00
parent 30f5eedf80
commit 0c55a57dca
1 changed files with 12 additions and 7 deletions
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19
Xfuncproto.h.in
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@ -85,24 +85,29 @@ in this Software without prior written authorization from The Open Group.
# define _X_ATTRIBUTE_PRINTF(x,y)
#endif /* GNUC >= 4 */
#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 303)
#if defined(__GNUC__) && (__GNUC__ >= 4)
# define _X_EXPORT __attribute__((visibility("default")))
# define _X_HIDDEN __attribute__((visibility("hidden")))
# define _X_INTERNAL __attribute__((visibility("internal")))
# define _X_LIKELY(x) __builtin_expect(!!(x), 1)
# define _X_UNLIKELY(x) __builtin_expect(!!(x), 0)
# define _X_INLINE inline
#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
# define _X_EXPORT __global
# define _X_HIDDEN __hidden
# define _X_INTERNAL __hidden
#else /* not gcc >= 4 and not Sun Studio >= 8 */
# define _X_EXPORT
# define _X_HIDDEN
# define _X_INTERNAL
#endif /* GNUC >= 4 */
#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 303)
# define _X_LIKELY(x) __builtin_expect(!!(x), 1)
# define _X_UNLIKELY(x) __builtin_expect(!!(x), 0)
# define _X_INLINE inline
#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
# define _X_LIKELY(x) (x)
# define _X_UNLIKELY(x) (x)
# define _X_INLINE inline
#else /* not gcc >= 3.3 and not Sun Studio >= 8 */
# define _X_EXPORT
# define _X_HIDDEN
# define _X_INTERNAL
# define _X_LIKELY(x) (x)
# define _X_UNLIKELY(x) (x)
# define _X_INLINE