* ansidecl.h: Copy attribute support macros from egcs.

From-SVN: r28274

include/ChangeLog

+1999-07-11  Ian Lance Taylor  <ian@zembu.com>
+
+	* ansidecl.h: Copy attribute support macros from egcs.
+
 1999-04-02  Mark Mitchell  <mark@codesourcery.com>
 
 	* splay-tree.h (splay_tree_compare_pointers): Declare.

include/ansidecl.h

 /* ANSI and traditional C compatability macros
-   Copyright 1991, 1992, 1996 Free Software Foundation, Inc.
+   Copyright 1991, 1992, 1996, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
 This program is free software; you can redistribute it and/or modify
@@ -160,4 +160,37 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #endif	/* ANSI C.  */
 
+/* Define macros for some gcc attributes.  This permits us to use the
+   macros freely, and know that they will come into play for the
+   version of gcc in which they are supported.  */
+
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __attribute__(x)
+#endif
+
+#ifndef ATTRIBUTE_UNUSED_LABEL
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 93)
+#  define ATTRIBUTE_UNUSED_LABEL
+# else
+#  define ATTRIBUTE_UNUSED_LABEL ATTRIBUTE_UNUSED
+# endif /* GNUC < 2.93 */
+#endif /* ATTRIBUTE_UNUSED_LABEL */
+
+#ifndef ATTRIBUTE_UNUSED
+#define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif /* ATTRIBUTE_UNUSED */
+
+#ifndef ATTRIBUTE_NORETURN
+#define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+#endif /* ATTRIBUTE_NORETURN */
+
+#ifndef ATTRIBUTE_PRINTF
+#define ATTRIBUTE_PRINTF(m, n) __attribute__ ((format (__printf__, m, n)))
+#define ATTRIBUTE_PRINTF_1 ATTRIBUTE_PRINTF(1, 2)
+#define ATTRIBUTE_PRINTF_2 ATTRIBUTE_PRINTF(2, 3)
+#define ATTRIBUTE_PRINTF_3 ATTRIBUTE_PRINTF(3, 4)
+#define ATTRIBUTE_PRINTF_4 ATTRIBUTE_PRINTF(4, 5)
+#define ATTRIBUTE_PRINTF_5 ATTRIBUTE_PRINTF(5, 6)
+#endif /* ATTRIBUTE_PRINTF */
+
 #endif	/* ansidecl.h	*/