GDB 7.6.50

include/ansidecl.h

 /* ANSI and traditional C compatability macros
    Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
    2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010
    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
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
@@ skipping 261 matching lines @@
 #  endif
 # else
 #  if GCC_VERSION >= 4005
 #   define ATTRIBUTE_UNUSED_LABEL ATTRIBUTE_UNUSED ;
 #  else
 #   define ATTRIBUTE_UNUSED_LABEL
 #  endif
 # endif
 #endif
 
+/* Similarly to ARG_UNUSED below.  Prior to GCC 3.4, the C++ frontend
+   couldn't parse attributes placed after the identifier name, and now
+   the entire compiler is built with C++.  */
 #ifndef ATTRIBUTE_UNUSED
-#define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#if GCC_VERSION >= 3004
+#  define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#else
+#define ATTRIBUTE_UNUSED
+#endif
 #endif /* ATTRIBUTE_UNUSED */
 
 /* Before GCC 3.4, the C++ frontend couldn't parse attributes placed after the
    identifier name.  */
 #if ! defined(__cplusplus) || (GCC_VERSION >= 3004)
 # define ARG_UNUSED(NAME) NAME ATTRIBUTE_UNUSED
 #else /* !__cplusplus || GNUC >= 3.4 */
 # define ARG_UNUSED(NAME) NAME
 #endif /* !__cplusplus || GNUC >= 3.4 */
 
 #ifndef ATTRIBUTE_NORETURN
 #define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
 #endif /* ATTRIBUTE_NORETURN */
 
 /* Attribute `nonnull' was valid as of gcc 3.3.  */
 #ifndef ATTRIBUTE_NONNULL
 # if (GCC_VERSION >= 3003)
 #  define ATTRIBUTE_NONNULL(m) __attribute__ ((__nonnull__ (m)))
 # else
 #  define ATTRIBUTE_NONNULL(m)
 # endif /* GNUC >= 3.3 */
 #endif /* ATTRIBUTE_NONNULL */
 
+/* Attribute `returns_nonnull' was valid as of gcc 4.9.  */
+#ifndef ATTRIBUTE_RETURNS_NONNULL
+# if (GCC_VERSION >= 4009)
+#  define ATTRIBUTE_RETURNS_NONNULL __attribute__ ((__returns_nonnull__))
+# else
+#  define ATTRIBUTE_RETURNS_NONNULL
+# endif /* GNUC >= 4.9 */
+#endif /* ATTRIBUTE_RETURNS_NONNULL */
+
 /* Attribute `pure' was valid as of gcc 3.0.  */
 #ifndef ATTRIBUTE_PURE
 # if (GCC_VERSION >= 3000)
 #  define ATTRIBUTE_PURE __attribute__ ((__pure__))
 # else
 #  define ATTRIBUTE_PURE
 # endif /* GNUC >= 3.0 */
 #endif /* ATTRIBUTE_PURE */
 
 /* Use ATTRIBUTE_PRINTF when the format specifier must not be NULL.
@@ skipping 108 matching lines @@
 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
 #else
 #define ENUM_BITFIELD(TYPE) unsigned int
 #endif
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif  /* ansidecl.h   */