--- old/common/autoconf/boot-jdk.m4	2016-08-07 17:44:54.000000000 -0700
+++ new/common/autoconf/boot-jdk.m4	2016-08-07 17:44:54.000000000 -0700
@@ -305,7 +305,7 @@
   BOOT_JDK_SOURCETARGET="-source 8 -target 8"
   AC_SUBST(BOOT_JDK_SOURCETARGET)
 
-  ADD_JVM_ARG_IF_OK([-Xpatch:foo=bar], dummy, [$JAVA])
+  ADD_JVM_ARG_IF_OK([--patch-module foo=bar], dummy, [$JAVA])
   AC_MSG_CHECKING([if Boot JDK supports modules])
   if test "x$JVM_ARG_OK" = "xtrue"; then
     AC_MSG_RESULT([yes])