[jdk8u-dev] RFR: 8328999: Update GIFlib to 5.2.2

[Andrew John Hughes]

On Thu, 29 Aug 2024 17:43:19 GMT, Andrew John Hughes <andrew at openjdk.org> wrote:

> This updates the in-tree giflib to 5.2.2. The actual code changes are a clean backport, but the license file changes needed adapting from the `giflib.md` file in 11u and later to the `THIRD_PARTY_README` file in 8u (now only one copy following [JDK-8338144](https://bugs.openjdk.org/browse/JDK-8338144))
> 
> 8u is also missing [JDK-8225487](https://bugs.openjdk.org/browse/JDK-8225487) which I've included as part of this patch. This updates the license to credit `openbsd-reallocarray.c` and is updated further by 8238999. I also included changes made by the 5.2.1 update which were missed because 8225487 was missing.
> 
> In `gif_lib.h`, I have restored the workaround for a missing `stdbool.h` on Windows only. This is needed to build on Visual Studio 2010.
> 
> The `giflib.md` changes include some odd changes, replacing the giflib VCS URL with just `tree/README`. I've raised [8339271](https://bugs.openjdk.org/browse/JDK-8339271) to correct this and will look at backporting that as a follow-up.

I've restored the workaround for `stdbool.h` which was present in `gif_lib.h` but removed in this patch on later JDK versions. This is still needed on Windows with VS2010.

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PR Comment: https://git.openjdk.org/jdk8u-dev/pull/571#issuecomment-2406100364