diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index add9ff9d1a7..4a3f8034892 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,8 @@
+2012-04-02  Tristan Gingold  <gingold@adacore.com>
+
+	* stack-limit.c: Includes ansidecl.h.
+	(stack_limit_increase): Add ATTRIBUTE_UNUSED
+
 2012-03-20  Jason Merrill  <jason@redhat.com>
 
 	* cp-demangle.c (cplus_demangle_type): Handle 'auto'.
diff --git a/libiberty/stack-limit.c b/libiberty/stack-limit.c
index e64cac28d1d..82c3d44498e 100644
--- a/libiberty/stack-limit.c
+++ b/libiberty/stack-limit.c
@@ -34,6 +34,7 @@ Attempt to increase stack size limit to @var{pref} bytes if possible.
 */
 
 #include "config.h"
+#include "ansidecl.h"
 
 #ifdef HAVE_STDINT_H
 #include <stdint.h>
@@ -43,7 +44,7 @@ Attempt to increase stack size limit to @var{pref} bytes if possible.
 #endif
 
 void
-stack_limit_increase (unsigned long pref)
+stack_limit_increase (unsigned long pref ATTRIBUTE_UNUSED)
 {
 #if defined(HAVE_SETRLIMIT) && defined(HAVE_GETRLIMIT) \
     && defined(RLIMIT_STACK) && defined(RLIM_INFINITY)