diff options
| author | Tilman Sauerbeck <tilman@code-monkey.de> | 2007-05-01 14:52:57 +0200 |
|---|---|---|
| committer | Tilman Sauerbeck <tilman@code-monkey.de> | 2007-05-01 14:52:57 +0200 |
| commit | 0c55a57dca2e888ba089e280f62e1c5bb55db7d7 (patch) | |
| tree | ebaf5135ce123ea8e3d26f2e8fc5f01e03588366 | |
| parent | 30f5eedf800f6683161fca9fc3e2d6ddc9ce0ac3 (diff) | |
Enable GCC's visibility attributes on GCC 4 or greater only.
| -rw-r--r-- | Xfuncproto.h.in | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/Xfuncproto.h.in b/Xfuncproto.h.in index e8f02be..2421ae4 100644 --- a/Xfuncproto.h.in +++ b/Xfuncproto.h.in @@ -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 |