Merge

hotspot/make/windows/makefiles/compile.make

@@ -54,7 +54,11 @@ CXX=cl.exe
 # improving the quality of crash log stack traces involving jvm.dll.
 
 # These are always used in all compiles
-CXX_FLAGS=$(EXTRA_CFLAGS) /nologo /W3 /WX
+CXX_FLAGS=$(EXTRA_CFLAGS) /nologo /W3
+
+!if "$(WARNINGS_AS_ERRORS)" != "false"
+CXX_FLAGS=$(CXX_FLAGS) /WX
+!endif
 
 # Let's add debug information when Full Debug Symbols is enabled
 !if "$(ENABLE_FULL_DEBUG_SYMBOLS)" == "1"
@@ -191,4 +195,3 @@ RC_FLAGS=/D "HS_VER=$(HS_VER)" \
 !if "$(MFC_DEBUG)" == "true"
 RC_FLAGS = $(RC_FLAGS) /D "_DEBUG"
 !endif
-

hotspot/make/windows/makefiles/defs.make

@@ -31,6 +31,8 @@
 SLASH_JAVA ?= J:
 PATH_SEP = ;
 
+MAKE_ARGS += WARNINGS_AS_ERRORS=$(WARNINGS_AS_ERRORS)
+
 # Need PLATFORM (os-arch combo names) for jdk and hotspot, plus libarch name
 ifeq ($(ARCH_DATA_MODEL),32)
   ARCH_DATA_MODEL=32