I've committed the following patch as obvious.  The local "prefix" variable is 
only assigned const strings, and only passed to printf() functions, so add 
"const" to avoid gcc warnings:
common/sim-fpu.c: In function 'sim_fpu_print_status':
common/sim-fpu.c:2508: warning: initialization discards qualifiers from 
pointer target type
common/sim-fpu.c:2566: warning: assignment discards qualifiers from pointer 
target type
-mike

2010-04-10  Mike Frysinger  <vapier@gentoo.org>

	* sim-fpu.c (sim_fpu_print_status): Add const markings to local
	"prefix" var.

RCS file: /cvs/src/src/sim/common/sim-fpu.c,v
retrieving revision 1.17
diff -u -p -r1.17 sim-fpu.c
--- sim/common/sim-fpu.c	10 Apr 2010 08:26:45 -0000	1.17
+++ sim/common/sim-fpu.c	10 Apr 2010 20:25:45 -0000
@@ -2497,7 +2497,7 @@ sim_fpu_print_status (int status,
 		      void *arg)
 {
   int i = 1;
-  char *prefix = "";
+  const char *prefix = "";
   while (status >= i)
     {
       switch ((sim_fpu_status) (status & i))