--- a/make/lib/LibCommon.gmk	Tue Feb 13 10:36:52 2018 +0100
+++ b/make/lib/LibCommon.gmk	Tue Feb 13 10:37:33 2018 +0100
@@ -36,6 +36,9 @@
 # elegant solution to this.
 WIN_JAVA_LIB := $(SUPPORT_OUTPUTDIR)/native/java.base/libjava/java.lib
 
+DISABLE_MAPFILES := true
+CFLAGS_JDKLIB := -fvisibility=hidden $(CFLAGS_JDKLIB)
+
 ifneq ($(findstring $(OPENJDK_TARGET_OS), macosx windows), )
   DISABLE_MAPFILES := true
 endif