Issue description

https://gist.github.com/qmmdb/3bb39f0b78a9c5da1916172ececb86fd

ld: library not found for -lncurses
clang-4.0: error: linker command failed with exit code 1 (use -v to see invocation)
`clang' failed in phase `Linker'. (Exit code: 1)

Steps to reproduce

Run nix-shell -p haskell.compiler.ghcjs

Technical details

• system: "x86_64-darwin"
• host os: Darwin 16.7.0, macOS 10.12.6
• multi-user?: yes
• sandbox: no
• version: nix-env (Nix) 1.11.16
• channels(root): "nixpkgs-18.03pre125021.73a01aa028c"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixpkgs