addTranslateC for system headers

[Sze]

It is actually contained in my variant of a cursed entry (the whole thing is cursed, not that part specifically) What's the most cursed Zig you can write? - #16 by Sze :

@Sze

const files = b.addWriteFiles();
const translate_header = files.add("rayheaders.h",
    \\#include <raylib.h>
    \\#include <raymath.h>
    \\#include <rlgl.h>
);
const raylib_translate = b.addTranslateC(.{
    .link_libc = true,
    .target = target,
    .optimize = optimize,
    .root_source_file = translate_header,
});
raylib_translate.addIncludePath(raylib_dep.path("src"));
root.addImport("ray", raylib_translate.createModule());

You also could use an actual .c or .h file that contains similar code, I originally saw somebody turn it into a single expr .root_source_file = b.addWriteFiles().add(...) that also works, but I don’t remember where I saw it.