4 files changed, 4 insertions, 4 deletions
diff --git a/build-aux/snippet/_Noreturn.h b/build-aux/snippet/_Noreturn.h
index 1a7b4daed0..c44ad89b7c 100644
--- a/build-aux/snippet/_Noreturn.h
+++ b/build-aux/snippet/_Noreturn.h
@@ -1,4 +1,4 @@
-#ifndef _Noreturn
+#if !defined _Noreturn && __STDC_VERSION__ < 201112
 # if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
       || 0x5110 <= __SUNPRO_C)
 #  define _Noreturn __attribute__ ((__noreturn__))
diff --git a/build-aux/snippet/arg-nonnull.h b/build-aux/snippet/arg-nonnull.h
index 6c2f1e82d0..3a9dd2664e 100644
--- a/build-aux/snippet/arg-nonnull.h
+++ b/build-aux/snippet/arg-nonnull.h
@@ -1,5 +1,5 @@
 /* A C macro for declaring that specific arguments must not be NULL.
-   Copyright (C) 2009-2011 Free Software Foundation, Inc.
+   Copyright (C) 2009-2012 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published
diff --git a/build-aux/snippet/c++defs.h b/build-aux/snippet/c++defs.h
index b6821a64ac..96da94b97b 100644
--- a/build-aux/snippet/c++defs.h
+++ b/build-aux/snippet/c++defs.h
@@ -1,5 +1,5 @@
 /* C++ compatible function declaration macros.
-   Copyright (C) 2010-2011 Free Software Foundation, Inc.
+   Copyright (C) 2010-2012 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published
diff --git a/build-aux/snippet/warn-on-use.h b/build-aux/snippet/warn-on-use.h
index 2cdeec3e66..d4cb94f352 100644
--- a/build-aux/snippet/warn-on-use.h
+++ b/build-aux/snippet/warn-on-use.h
@@ -1,5 +1,5 @@
 /* A C macro for emitting warnings if a function is used.
-   Copyright (C) 2010-2011 Free Software Foundation, Inc.
+   Copyright (C) 2010-2012 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published