This is zlib, packaged for Zig.
First, update your build.zig.zon:
zig fetch --save https://github.com/allyourcodebase/zlib/archive/refs/tags/1.3.1.tar.gz
Next, add this snippet to your build.zig script:
const zlib_dep = b.dependency("zlib", .{
.target = target,
.optimize = optimize,
});
your_compilation.linkLibrary(zlib_dep.artifact("z"));This will provide zlib as a static library to your_compilation.