--- a/config.lib	Mon Feb 19 18:47:55 2007 +0000
+++ b/config.lib	Mon Feb 19 18:58:28 2007 +0000
@@ -291,13 +291,13 @@
 	# Check if all params have valid values
 
 	# Endian only allows AUTO, LE and, BE
-	if [ -z "`echo $endian | grep '^AUTO$\|^LE$\|^BE$'`" ]; then
+	if [ -z "`echo $endian | egrep '^(AUTO|LE|BE)$'`" ]; then
 		echo "configure: error: invalid option --endian=$endian"
 		echo " Available options are: --endian=[AUTO|LE|BE]"
 		exit 1
 	fi
 	# OS only allows DETECT, UNIX, OSX, FREEBSD, MORPHOS, BEOS, SUNOS, CYGWIN, MINGW, OS2, WINCE, and PSP
-	if [ -z "`echo $os | grep '^DETECT$\|^UNIX$\|^OSX$\|^FREEBSD$\|^MORPHOS$\|^BEOS$\|^SUNOS$\|^CYGWIN$\|^MINGW$\|^OS2$\|^WINCE$\|^PSP$'`" ]; then
+	if [ -z "`echo $os | egrep '^(DETECT|UNIX|OSX|FREEBSD|MORPHOS|BEOS|SUNOS|CYGWIN|MINGW|OS2|WINCE|PSP)$'`" ]; then
 		echo "configure: error: invalid option --os=$os"
 		echo " Available options are: --os=[DETECT|UNIX|OSX|FREEBSD|MORPHOS|BEOS|SUNOS|CYGWIN|MINGW|OS2|WINCE|PSP]"
 		exit 1