make/lib/Lib-jdk.pack.gmk

*** 38,47 ****
--- 38,48 ----
          -DNO_ZLIB -DUNPACK_JNI -DFULL \
          -I$(SUPPORT_OUTPUTDIR)/headers/java.base \
          -I$(TOPDIR)/src/jdk.pack/share/native/common-unpack \
          $(LIBJAVA_HEADER_FLAGS), \
      CFLAGS_release := -DPRODUCT, \
+     DISABLED_WARNINGS_gcc := implicit-fallthrough, \
      MAPFILE := $(TOPDIR)/make/mapfiles/libunpack/mapfile-vers, \
      LDFLAGS := $(LDFLAGS_JDKLIB) $(LDFLAGS_CXX_JDK) \
          $(call SET_SHARED_LIBRARY_ORIGIN), \
      LDFLAGS_windows := -map:$(SUPPORT_OUTPUTDIR)/native/$(MODULE)/unpack.map -debug, \
      LIBS_unix := -ljvm $(LIBCXX) -ljava -lc, \