{ stdenv, ghc, pkgconfig, glibcLocales, cacert, stack }@depArgs: with stdenv.lib; { buildInputs ? [] , extraArgs ? [] , LD_LIBRARY_PATH ? [] , ghc ? depArgs.ghc , stack ? depArgs.stack , ... }@args: let stackCmd = "stack --internal-re-exec-version=${stack.version}"; # Add all dependencies in buildInputs including propagated ones to # STACK_IN_NIX_EXTRA_ARGS. addStackArgsHook = '' for pkg in ''${pkgsHostHost[@]} ''${pkgsHostBuild[@]} ''${pkgsHostTarget[@]} do [ -d "$pkg/lib" ] && \ export STACK_IN_NIX_EXTRA_ARGS+=" --extra-lib-dirs=$pkg/lib" [ -d "$pkg/include" ] && \ export STACK_IN_NIX_EXTRA_ARGS+=" --extra-include-dirs=$pkg/include" done ''; in stdenv.mkDerivation (args // { buildInputs = buildInputs ++ optional (stdenv.hostPlatform.libc == "glibc") glibcLocales ++ [ ghc pkgconfig stack ]; STACK_PLATFORM_VARIANT="nix"; STACK_IN_NIX_SHELL=1; STACK_IN_NIX_EXTRA_ARGS = extraArgs; shellHook = addStackArgsHook + args.shellHook or ""; # XXX: workaround for https://ghc.haskell.org/trac/ghc/ticket/11042. LD_LIBRARY_PATH = makeLibraryPath (LD_LIBRARY_PATH ++ buildInputs); # ^^^ Internally uses `getOutput "lib"` (equiv. to getLib) # Non-NixOS git needs cert GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt"; # Fixes https://github.com/commercialhaskell/stack/issues/2358 LANG = "en_US.UTF-8"; preferLocalBuild = true; configurePhase = args.configurePhase or '' export STACK_ROOT=$NIX_BUILD_TOP/.stack ${addStackArgsHook} ''; buildPhase = args.buildPhase or "${stackCmd} build"; checkPhase = args.checkPhase or "${stackCmd} test"; doCheck = args.doCheck or true; installPhase = args.installPhase or '' ${stackCmd} --local-bin-path=$out/bin build --copy-bins ''; })