depot/third_party/nixpkgs/pkgs/development/idris-modules/with-packages.nix

# Build a version of idris with a set of packages visible
# packages: The packages visible to idris
{
  lib,
  idris,
  symlinkJoin,
  makeWrapper,
}:
packages:

let
  paths = lib.closePropagation packages;
in
lib.appendToName "with-packages" (symlinkJoin {

  inherit (idris) name;

  paths = paths ++ [ idris ];

  nativeBuildInputs = [ makeWrapper ];

  postBuild = ''
    wrapProgram $out/bin/idris \
      --set IDRIS_LIBRARY_PATH $out/libs
  '';

})