8380078: Update GIFlib to 6.1.2

[anupamdev20]

Hi all,

This pull request contains a backport of commit 76e7c9e6 from the openjdk/jdk repository.

The commit being backported was authored by Damon Nguyen on 19 Mar 2026 and was reviewed by Sergey Bylokhov and Alexander Zvegintsev.

Thanks!

---

Progress

• Change must not contain extraneous whitespace
• JDK-8380078 needs maintainer approval
• Commit message must refer to an issue

Issue

• JDK-8380078: Update GIFlib to 6.1.2 (Bug - P3 - Requested)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk26u.git pull/121/head:pull/121
$ git checkout pull/121

Update a local copy of the PR:
$ git checkout pull/121
$ git pull https://git.openjdk.org/jdk26u.git pull/121/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 121

View PR using the GUI difftool:
$ git pr show -t 121

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk26u/pull/121.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back adev! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[anupamdev20]

hi @aivanov-jdk ,
Kindly review. This is a clean backport. Low Risk

Regards,
Anupam

[mlbridge]

Webrevs

• 00: Full (b8f79e83)