--- a/make/lib/Lib-jdk.management.gmk	Thu Apr 26 15:37:22 2018 +0200
+++ b/make/lib/Lib-jdk.management.gmk	Thu Apr 26 15:52:17 2018 +0200
@@ -48,8 +48,6 @@
     NAME := management_ext, \
     OPTIMIZATION := $(LIBMANAGEMENT_EXT_OPTIMIZATION), \
     CFLAGS := $(CFLAGS_JDKLIB) $(LIBMANAGEMENT_EXT_CFLAGS), \
-    HEADER_FLAGS := \
-        -I$(call FindHeaderDirForModule, $(MODULE)), \
     LDFLAGS := $(LDFLAGS_JDKLIB) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \
     LIBS := $(JDKLIB_LIBS), \