--- a/common/autoconf/jdk-options.m4	Wed Jul 05 21:49:00 2017 +0200
+++ b/common/autoconf/jdk-options.m4	Tue Jun 07 15:42:20 2016 +0200
@@ -224,7 +224,7 @@
   elif test "x$with_copyright_year" != x; then
     COPYRIGHT_YEAR="$with_copyright_year"
   else
-    COPYRIGHT_YEAR=`date +'%Y'`
+    COPYRIGHT_YEAR=`$DATE +'%Y'`
   fi
   AC_SUBST(COPYRIGHT_YEAR)
 ])