Update std.zig.system.NativePaths.detect to support some more flags on NixOS like environment.
Basically detect `-idirafter` flag in `NIX_CFLAGS_COMPILE` and treat it like `-isystem`, also detect `NIX_CFLAGS_LINK` environment variable and treat it like the `NIX_LDFLAGS` .
Reference:
https://github.com/NixOS/nixpkgs/blob/74eefb4210ef545cebd6a7a25356734b0b49854f/pkgs/build-support/build-fhsenv-chroot/env.nix#L83
7af412b6b4Purple committed on 11/27/2025, 7:49:55 PM· committed by Andrew Kelleyparente427ba9