diff -Nru gcc-4.5.1.orig//libiberty/strsignal.c gcc-4.5.1/libiberty/strsignal.c
--- gcc-4.5.1.orig//libiberty/strsignal.c	2008-06-19 17:08:53.000000000 +0200
+++ gcc-4.5.1/libiberty/strsignal.c	2010-09-23 20:00:01.972694593 +0200
@@ -551,7 +551,7 @@
 #ifndef HAVE_PSIGNAL
 
 void
-psignal (int signo, char *message)
+psignal (int signo, const char *message)
 {
   if (signal_names == NULL)
     {