[OpenJDK 2D-Dev] RFR: 8080317: Disable warning treated as error for signed/unsigned comparison in building splashscreen

[David DeHaven]

Adding Magnus

-DrD-

> On May 13, 2015, at 1:45 PM, Phil Race <philip.race at oracle.com> wrote:
> 
> Warnings are now treated as errors by default.
> I need a quick review on this from anyone who is available so I can fix our build for integration...
> 
> -phil.
> 
> https://bugs.openjdk.java.net/browse/JDK-8080317
> 
> $ hg diff make/lib/Awt2dLibraries.gmk
> diff --git a/make/lib/Awt2dLibraries.gmk b/make/lib/Awt2dLibraries.gmk
> --- a/make/lib/Awt2dLibraries.gmk
> +++ b/make/lib/Awt2dLibraries.gmk
> @@ -885,10 +885,10 @@
>       OPTIMIZATION := LOW, \
>       CFLAGS := $(LIBSPLASHSCREEN_CFLAGS) $(CFLAGS_JDKLIB) \
>                 $(GIFLIB_CFLAGS) $(LIBJPEG_CFLAGS) $(PNG_CFLAGS), \
> -      DISABLED_WARNINGS_gcc := type-limits unused-result maybe-uninitialized, \
> +      DISABLED_WARNINGS_gcc := sign-compare type-limits unused-result maybe-uninitialized, \
>       DISABLED_WARNINGS_clang := incompatible-pointer-types, \
>       DISABLED_WARNINGS_solstudio := E_NEWLINE_NOT_LAST E_DECLARATION_IN_CODE, \
> -      DISABLED_WARNINGS_microsoft := 4244 4267, \
> +      DISABLED_WARNINGS_microsoft := 4018 4244 4267, \
>       MAPFILE := $(JDK_TOPDIR)/make/mapfiles/libsplashscreen/mapfile-vers, \
>       LDFLAGS := $(LDFLAGS_JDKLIB) \
>           $(call SET_SHARED_LIBRARY_ORIGIN), \
>