--- old/make/lib/Lib-java.base.gmk	2018-06-30 14:07:03.127167687 -0700
+++ new/make/lib/Lib-java.base.gmk	2018-06-30 14:07:02.836167698 -0700
@@ -51,7 +51,7 @@
         $(call SET_SHARED_LIBRARY_ORIGIN), \
     LDFLAGS_windows := -delayload:secur32.dll -delayload:iphlpapi.dll, \
     LIBS_unix := -ljvm -ljava, \
-    LIBS_linux := $(LIBDL) -lpthread, \
+    LIBS_linux := $(LIBDL) -lpthread -lrdmacm, \
     LIBS_solaris := -lnsl -lsocket $(LIBDL), \
     LIBS_aix := $(LIBDL),\
     LIBS_windows := ws2_32.lib jvm.lib secur32.lib iphlpapi.lib winhttp.lib \
@@ -78,7 +78,7 @@
     LDFLAGS := $(LDFLAGS_JDKLIB) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \
     LIBS_unix := -ljava -lnet, \
-    LIBS_linux := -lpthread $(LIBDL), \
+    LIBS_linux := -lpthread $(LIBDL) -lrdmacm, \
     LIBS_solaris := -ljvm -lsocket -lposix4 $(LIBDL) \
         -lsendfile, \
     LIBS_aix := $(LIBDL), \