Sorry, I forgot to attach a patch: ------
diff -r 52454985425d makefiles/CompileNativeLibraries.gmk --- a/makefiles/CompileNativeLibraries.gmk Mon Jul 08 19:24:22 2013 -0700 +++ b/makefiles/CompileNativeLibraries.gmk Tue Jul 09 13:41:12 2013 +0900 @@ -1987,7 +1987,7 @@ ifneq ($(OPENJDK_TARGET_OS),macosx) - SCTP_WERROR := -Werror + SCTP_WERROR := -Werror -Wno-error=unused-parameter ifeq ($(OPENJDK_TARGET_CPU_ARCH), ppc) SCTP_WERROR := endif