lyst-auto-sparc64.conf: borrow new symlink logic from amd64

Signed-off-by: Ben Kohler <bkohler@gentoo.org>

tools/catalyst-auto-sparc64.conf

@@ -32,15 +32,22 @@ give_latest_from_dates() {
 	tr '~' '-'
 }
 
-
 update_symlinks() {
 	# Symlink the latest stages3 to build from
-  for d in ${BUILD_SRCDIR_BASE}/default; do
+	for d in ${BUILD_SRCDIR_BASE}/{default,hardened} ; do
 		pushd $d >/dev/null
 		for f in $(ls stage3*${EXTENSIONS} | grep -v latest | give_latest_from_dates ) ; do
-      of=${f/20[0-9][0-9].[0-9]/latest} # for 20XX.Y stuff
-      of=${of/20[0-9][0-9][0-1][0-9][0-9][0-9]/latest} # for $
-      ln -sf $f $of
+			# 20yymmddThhmmssZ
+			# 20yymmddhhmmss
+			# 20yymmdd
+			# 20yy.n
+			of=$(perl -p \
+				-e 's/20\d{6}T\d{6}Z/latest/g;' \
+				-e 's/20\d{6}\d{6}/latest/g;' \
+				-e 's/20\d{6}/latest/g;' \
+				-e 's/20\d{2}\.\d{2}/latest/g;' \
+				<<<"$f")
+			ln -svf "$f" "$of"
 		done
 		popd >/dev/null
 	done