--- a/make/lib/Lib-jdk.jdwp.agent.gmk	Fri Feb 23 13:42:40 2018 -0800
+++ b/make/lib/Lib-jdk.jdwp.agent.gmk	Fri Feb 23 13:42:48 2018 -0800
@@ -43,7 +43,6 @@
     OPTIMIZATION := LOW, \
     CFLAGS := $(CFLAGS_JDKLIB) -DUSE_MMAP \
         $(LIBDT_SOCKET_CPPFLAGS), \
-    DISABLED_WARNINGS_gcc := shift-negative-value, \
     MAPFILE := $(TOPDIR)/make/mapfiles/libdt_socket/mapfile-vers, \
     LDFLAGS := $(LDFLAGS_JDKLIB) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \