https://bugs.gentoo.org/892495
https://github.com/WebKit/WebKit/commit/d318bb461f040b90453bc4e100dcf967243ecd98

From d318bb461f040b90453bc4e100dcf967243ecd98 Mon Sep 17 00:00:00 2001
From: Michael Catanzaro <mcatanzaro@redhat.com>
Date: Mon, 16 Jan 2023 16:55:26 -0800
Subject: [PATCH] WebKitGTK 2.39.4 does not build due to missing #include in
 ANGLE https://bugs.webkit.org/show_bug.cgi?id=250689

Unreviewed build fix.

* Source/ThirdParty/ANGLE/include/GLSLANG/ShaderVars.h:

Canonical link: https://commits.webkit.org/258968@main
--- a/Source/ThirdParty/ANGLE/include/GLSLANG/ShaderVars.h
+++ b/Source/ThirdParty/ANGLE/include/GLSLANG/ShaderVars.h
@@ -12,6 +12,7 @@
 
 #include <algorithm>
 #include <array>
+#include <cstdint>
 #include <string>
 #include <vector>