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-rw-r--r--misc/sys/cdefs.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index ce5e83d571..ab7d327c59 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2001, 2002, 2004, 2005, 2006
+/* Copyright (C) 1992-2001, 2002, 2004, 2005, 2006, 2007
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -279,6 +279,17 @@
 # define __always_inline __inline
 #endif
 
+/* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+   inline semantics, unless -fgnu89-inline is used.  */
+#ifdef __GNUC_STDC_INLINE__
+# define __extern_inline extern __inline __attribute__ ((__gnu_inline__))
+# define __extern_always_inline \
+  extern __always_inline __attribute__ ((__gnu_inline__))
+#else
+# define __extern_inline extern __inline
+# define __extern_always_inline extern __always_inline
+#endif
+
 /* It is possible to compile containing GCC extensions even if GCC is
    run in pedantic mode if the uses are carefully marked using the
    `__extension__' keyword.  But this is not generally available before