dmd: merge into single file

pkgs/by-name/dm/dmd/bootstrap.nix

@@ -1,9 +1,91 @@
-{ callPackage }:
-callPackage ./binary.nix {
+{ lib
+, stdenv
+, fetchurl
+, curl
+, tzdata
+, autoPatchelfHook
+, fixDarwinDylibNames
+, glibc
+}:
+
+let
+  inherit (stdenv) hostPlatform;
+  OS = if hostPlatform.isDarwin then "osx" else hostPlatform.parsed.kernel.name;
+  MODEL = toString hostPlatform.parsed.cpu.bits;
+
   version = "2.090.1";
   hashes = {
     # Get these from `nix-prefetch-url http://downloads.dlang.org/releases/2.x/2.090.1/dmd.2.090.1.linux.tar.xz` etc..
     osx = "sha256-9HwGVO/8jfZ6aTiDIUi8w4C4Ukry0uUS8ACP3Ig8dmU=";
     linux = "sha256-ByCrIA4Nt7i9YT0L19VXIL1IqIp+iObcZux407amZu4=";
   };
+in
+
+# On linux pargets like `pkgsLLVM.dmd` `cc` does not expose `libgcc`
+# and can't build `dmd`.
+assert hostPlatform.isLinux -> (stdenv.cc.cc ? libgcc);
+stdenv.mkDerivation {
+  pname = "dmd-bootstrap";
+  inherit version;
+
+  src = fetchurl rec {
+    name = "dmd.${version}.${OS}.tar.xz";
+    url = "http://downloads.dlang.org/releases/2.x/${version}/${name}";
+    hash = hashes.${OS} or (throw "missing bootstrap hash for OS ${OS}");
+  };
+
+  dontConfigure = true;
+  dontBuild = true;
+
+  nativeBuildInputs = lib.optionals hostPlatform.isLinux [
+    autoPatchelfHook
+  ] ++ lib.optionals hostPlatform.isDarwin [
+    fixDarwinDylibNames
+  ];
+  propagatedBuildInputs = [
+    curl
+    tzdata
+  ] ++ lib.optionals hostPlatform.isLinux [
+    glibc
+    stdenv.cc.cc.libgcc
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out
+
+    # try to copy model-specific binaries into bin first
+    mv ${OS}/bin${MODEL} $out/bin || true
+
+    mv src license.txt ${OS}/* $out/
+
+    # move man into place
+    mkdir -p $out/share
+    mv man $out/share/
+
+    # move docs into place
+    mkdir -p $out/share/doc
+    mv html/d $out/share/doc/
+
+    # fix paths in dmd.conf (one level less)
+    substituteInPlace $out/bin/dmd.conf --replace "/../../" "/../"
+
+    runHook postInstall
+  '';
+
+  # Stripping on Darwin started to break libphobos2.a
+  # Undefined symbols for architecture x86_64:
+  #   "_rt_envvars_enabled", referenced from:
+  #       __D2rt6config16rt_envvarsOptionFNbNiAyaMDFNbNiQkZQnZQq in libphobos2.a(config_99a_6c3.o)
+  dontStrip = hostPlatform.isDarwin;
+
+  meta = with lib; {
+    description = "Digital Mars D Compiler Package";
+    # As of 2.075 all sources and binaries use the boost license
+    license = licenses.boost;
+    maintainers = [ maintainers.lionello ];
+    homepage = "https://dlang.org/";
+    platforms = [ "x86_64-darwin" "i686-linux" "x86_64-linux" ];
+  };
 }