What license is glslang actually?

Hi! I’m working on a game engine that uses vulkan and GLSL.
Now the thing is, I want to add the ability to compile GLSL to allow modding/ in engine shader editing. which glslang is perfect for.

The thing is I want to open sauce it under a dual MIT and APACHE license, and that requires the code to not have incompatible copyleft licenses, and not be linked against code like that either.

And it looks like glslang has GPL3 somewhere inside of it, and I’m unsure weather I can actually use it for my engine in the end, as far as I understand GPL3 “infects” anything it touches.