--- gmp-6.0.0/gmp-h.in.orig	2015-01-16 22:25:51.000000000 +0100
+++ gmp-6.0.0/gmp-h.in	2015-01-16 22:26:40.000000000 +0100
@@ -360,14 +360,14 @@
     GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
     inline semantics, unless -fgnu89-inline is used.  */
 #ifdef __GNUC__
-#if (defined __GNUC_STDC_INLINE__) || (__GNUC__ == 4 && __GNUC_MINOR__ == 2) \
-  || (defined __GNUC_GNU_INLINE__ && defined __cplusplus)
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2)
 #define __GMP_EXTERN_INLINE extern __inline__ __attribute__ ((__gnu_inline__))
-#else
+#define __GMP_INLINE_PROTOTYPES  1
+#elif !(defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && __STDC_VERSION__ >= 199901L)
 #define __GMP_EXTERN_INLINE      extern __inline__
-#endif
 #define __GMP_INLINE_PROTOTYPES  1
 #endif
+#endif
 
 /* DEC C (eg. version 5.9) supports "static __inline foo()", even in -std1
    strict ANSI mode.  Inlining is done even when not optimizing (ie. -O0