ASR_BASE

Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/scripts/portable_date.sh b/scripts/portable_date.sh
new file mode 100755
index 0000000..84b5638
--- /dev/null
+++ b/scripts/portable_date.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+case $(uname) in
+	NetBSD|OpenBSD|DragonFly|FreeBSD|Darwin)
+		date -j -f "%Y-%m-%d %H:%M:%S %z" "$1" "$2" 2>/dev/null
+		;;
+	*)
+		date -d "$1" "$2"
+esac
+
+exit $?