Adjust strsignal to POSIX 200x prototype.

2008-06-19  Eric Blake  <ebb9@byu.net>

	Adjust strsignal to POSIX 200x prototype.
	* strsignal.c (strsignal): Remove const.

From-SVN: r136949

1 files changed, 8 insertions, 6 deletions

diff --git a/libiberty/strsignal.c b/libiberty/strsignal.c
index 4ca9e21..666b1b4 100644
--- a/libiberty/strsignal.c
+++ b/libiberty/strsignal.c
@@ -404,10 +404,10 @@ call to @code{strsignal}.
 
 #ifndef HAVE_STRSIGNAL
 
-const char *
+char *
 strsignal (int signo)
 {
-  const char *msg;
+  char *msg;
   static char buf[32];
 
 #ifndef HAVE_SYS_SIGLIST
@@ -428,14 +428,16 @@ strsignal (int signo)
     {
       /* In range, but no sys_siglist or no entry at this index. */
       sprintf (buf, "Signal %d", signo);
-      msg = (const char *) buf;
+      msg = buf;
     }
   else
     {
-      /* In range, and a valid message.  Just return the message. */
-      msg = (const char *) sys_siglist[signo];
+      /* In range, and a valid message.  Just return the message.  We
+	 can safely cast away const, since POSIX says the user must
+	 not modify the result.	 */
+      msg = (char *) sys_siglist[signo];
     }
-  
+
   return (msg);
 }