--- a/make/lib/Lib-jdk.sctp.gmk	Mon Sep 24 13:05:59 2018 -0400
+++ b/make/lib/Lib-jdk.sctp.gmk	Mon Sep 24 19:26:48 2018 +0200
@@ -34,6 +34,8 @@
         NAME := sctp, \
         OPTIMIZATION := LOW, \
         CFLAGS := $(CFLAGS_JDKLIB), \
+        DISABLED_WARNINGS_gcc := undef, \
+        DISABLED_WARNINGS_clang := undef, \
         EXTRA_HEADER_DIRS := \
             $(call GetJavaHeaderDir, java.base) \
             java.base:libnet \