From: Richard Leitner <richard.leitner@skidata.com>
Date: Thu, 14 Jun 2018 23:42:11 +0200
Subject: [PATCH] openjdk-8: hotspot: fix gcc8 compilation

As oe-core/yocto-project master migrated to gcc8.x we need to support this.
Therefore disable following gcc warnings/errors which caused the build to fail:
  + stringop-overflow
  + return-type
---

--- a/hotspot/make/linux/makefiles/gcc.make
+++ b/hotspot/make/linux/makefiles/gcc.make
@@ -197,7 +197,7 @@
 endif
 
 # Compiler warnings are treated as errors
-WARNINGS_ARE_ERRORS = -Werror
+WARNINGS_ARE_ERRORS = -Werror -Wno-stringop-overflow -Wno-error=return-type
 
 ifeq ($(USE_CLANG), true)
   # However we need to clean the code up before we can unrestrictedly enable this option with Clang