config.h

   1 #ifndef _CONFIG_H_
   2 #define _CONFIG_H_
   3
   4 #ifdef __APPLE__
   5
   6 #define HAVE_AVAILABILITY_MACROS_H 1
   7 #define HAVE_TARGET_CONDITIONALS_H 1
   8 #define HAVE_OSATOMIC_COMPARE_AND_SWAP_INT 1
   9 #define HAVE_OSATOMIC_COMPARE_AND_SWAP_LONG 1
  10 #define HAVE_LIBKERN_OSATOMIC_H
  11
  12 /* Be sneaky and turn OSAtomicCompareAndSwapInt into OSAtomicCompareAndSwap32
  13  * and OSAtomicCompareAndSwapLong into either OSAtomicCompareAndSwap32
  14  * or OSAtomicCompareAndSwap64 (depending on __LP64__) so that the library
  15  * is Tiger compatible!
  16  */
  17 #include <libkern/OSAtomic.h>
  18 #undef OSAtomicCompareAndSwapInt
  19 #undef OSAtomicCompareAndSwapLong
  20 #define OSAtomicCompareAndSwapInt(o,n,v) OSAtomicCompareAndSwap32Compat(o,n,v)
  21 #ifdef __LP64__
  22 #define OSAtomicCompareAndSwapLong(o,n,v) OSAtomicCompareAndSwap64Compat(o,n,v)
  23 #else
  24 #define OSAtomicCompareAndSwapLong(o,n,v) OSAtomicCompareAndSwap32Compat(o,n,v)
  25 #endif
  26
  27 static __inline bool OSAtomicCompareAndSwap32Compat(int32_t o, int32_t n, volatile int32_t *v)
  28 {return OSAtomicCompareAndSwap32(o,n,(int32_t *)v);}
  29 #ifdef __LP64__
  30 static __inline bool OSAtomicCompareAndSwap64Compat(int64_t o, int64_t n, volatile int64_t *v)
  31 {return OSAtomicCompareAndSwap64(o,n,(int64_t *)v);}
  32 #endif
  33
  34 #else /* !__APPLE__ */
  35
  36 #if defined(__WIN32__) || defined(_WIN32)
  37
  38 /* Poor runtime.c code causes warnings calling InterlockedCompareExchange */
  39 #define _CRT_SECURE_NO_WARNINGS 1
  40 #include <windows.h>
  41 static __inline int InterlockedCompareExchangeCompat(volatile void *v, long n, long o)
  42 {return (int)InterlockedCompareExchange((LONG *)v, (LONG)n, (LONG)o);}
  43 #undef InterlockedCompareExchange
  44 #define InterlockedCompareExchange(v,n,o) InterlockedCompareExchangeCompat(v,n,o)
  45
  46 #elif defined(__GNUC__) /* && !defined(__WIN32__) && !defined(_WIN32) */
  47
  48 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) /* GCC >= 4.1 */
  49
  50 /* runtime.c ignores these if __WIN32__ or _WIN32 is defined */
  51 #define HAVE_SYNC_BOOL_COMPARE_AND_SWAP_INT 1
  52 #define HAVE_SYNC_BOOL_COMPARE_AND_SWAP_LONG 1
  53
  54 #else /* GCC earlier than version 4.1 */
  55
  56 #error GCC version 4.1 (or compatible) or later is required on non-apple, non-w32 targets
  57
  58 #endif /* GCC earlier than version 4.1 */
  59
  60 #endif /* !defined(__GNUC__) && !defined(__WIN32__) && !defined(_WIN32) */
  61
  62 #endif /* !__APPLE__ */
  63
  64 #endif /* _CONFIG_H_ */