X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=includes%2FStg.h;h=394c987f079e3732cbaa905c70f404618d92f9bb;hb=59fa6266f00b6edcfc20c491c8de9a1b215dfa22;hp=392fd2a0abb30dfa4c5e1bcd1df22e90ab5f2f82;hpb=930a3e53e87cae37d266925f2908c9d180045311;p=ghc-hetmet.git

diff --git a/includes/Stg.h b/includes/Stg.h
index 392fd2a..394c987 100644
--- a/includes/Stg.h
+++ b/includes/Stg.h
@@ -35,9 +35,6 @@
 // Turn on C99 for .hc code.  This gives us the INFINITY and NAN
 // constants from math.h, which we occasionally need to use in .hc (#1861)
 # define _ISOC99_SOURCE
-
-// Turning on _ISOC99_SOURCE means S_ISSOCK gets defined on Linux
-# define _BSD_SOURCE
 #endif
 
 #if IN_STG_CODE == 0
@@ -77,11 +74,16 @@
 #define BITS_PER_BYTE 8
 #define BITS_IN(x) (BITS_PER_BYTE * sizeof(x))
 
+/* Compute offsets of struct fields
+ */
+#define FIELD_OFFSET(s_type, field) ((StgWord)&(((s_type*)0)->field))
+
 /*
  * 'Portable' inlining:
  * INLINE_HEADER is for inline functions in header files (macros)
  * STATIC_INLINE is for inline functions in source files
- * EXTERN_INLINE is for functions that we want to inline sometimes
+ * EXTERN_INLINE is for functions that we want to inline sometimes 
+ * (we also compile a static version of the function; see Inlines.c)
  */
 #if defined(__GNUC__) || defined( __INTEL_COMPILER)
 
@@ -89,11 +91,28 @@
 # define INLINE_ME inline
 # define STATIC_INLINE INLINE_HEADER
 
-# if defined(KEEP_INLINES)
-#  define EXTERN_INLINE inline
-# else
-#  define EXTERN_INLINE extern inline
-# endif
+// The special "extern inline" behaviour is now only supported by gcc
+// when _GNUC_GNU_INLINE__ is defined, and you have to use
+// __attribute__((gnu_inline)).  So when we don't have this, we use
+// ordinary static inline.
+//
+// Apple's gcc defines __GNUC_GNU_INLINE__ without providing
+// gnu_inline, so we exclude MacOS X and fall through to the safe
+// version.
+//
+#if defined(__GNUC_GNU_INLINE__) && !defined(__APPLE__)
+#  if defined(KEEP_INLINES)
+#    define EXTERN_INLINE inline
+#  else
+#    define EXTERN_INLINE extern inline __attribute__((gnu_inline))
+#  endif
+#else
+#  if defined(KEEP_INLINES)
+#    define EXTERN_INLINE
+#  else
+#    define EXTERN_INLINE INLINE_HEADER
+#  endif
+#endif
 
 #elif defined(_MSC_VER)