* introduced only_toolchain() Config helper for mnemosyne, which preserves stage 0 and remove from 1 to 9

config.in

@@ -24,6 +24,21 @@ case "$sdever" in
 	*)      CFGTEMP_TREE=unknown       ;;
 esac
 
+only_toolchain() {
+	local pkgs="$*"
+	set -x
+	if [ $# -gt 1 ]; then
+		pkgs="${pkgs// /\|}"
+	elif [ $# -eq 1 ]; then
+		true
+	fi
+	set +x
+
+	if [ "$pkgs" ]; then
+		pkgfilter sed -e "s,^\(.\) \(.\)[^ ]* \([^ ]*\) \([^ ]*\) \($pkgs\) ,\1 \2--------- \3 \4 \5 ,"
+	fi
+}
+
 if [ ! -s $cfgtmpdir/mnemosyne.config.in ]; then
 
 	if ! perl ./target/$SDECFG_TRG_MNEMOSYNE/mnemosyne.pl "./target/$SDECFG_TRG_MNEMOSYNE/pkgsel" TRG_MNEMOSYNE	\