Trying to add a few bits of mingw-w64. To be tested.

svn path=/nixpkgs/trunk/; revision=34228

pkgs/os-specific/windows/mingw-w64/default.nix

@@ -0,0 +1,35 @@
+{stdenv, fetchurl, binutilsCross ? null, gccCross ? null, onlyHeaders ? false}:
+
+let
+  name = "mingw-w64-2.0.3";
+in
+stdenv.mkDerivation (rec {
+  inherit name;
+
+  src = fetchurl {
+    url = "mirror://sourceforge/mingw-w64/mingw-w64-v2.0.3.tar.gz";
+    sha256 = "043jk6z90f9pxs9kfn6ckh2vlnbgcv6yfbp5ybahrj3z58dcijp5";
+  };
+
+} //
+(if onlyHeaders then {
+  name = name + "-headers";
+  preConfingure = ''
+    cd mingw-w64-headers
+  '';
+  configureFlags = "--without-crt --host=x86_64-w64-mingw32";
+
+  # I don't know what's that $host directory about, I put the
+  # files inside include as usual.
+  postInstall = ''
+    mv $out/x86_64-w64-mingw32/include/* $out/include
+    rm -R $out/x86_64-w64-mingw32
+  '';
+} else {
+  buildInputs = [ gccCross binutilsCross ];
+
+  crossConfig = gccCross.crossConfig;
+
+  dontStrip = true;
+})
+)

pkgs/top-level/all-packages.nix

@@ -1852,7 +1852,9 @@ let
 
   gccCrossStageStatic = let
       isMingw = (stdenv.cross.libc == "msvcrt");
-      libcCross1 = if isMingw then windows.mingw_headers1 else null;
+      isMingw64 = (stdenv.cross.libc == "msvcrt64");
+      libcCross1 = if isMingw then windows.mingw_headers1 else
+                   if isMingw64 then windows.mingw_w64_headers else null;
     in
       wrapGCCCross {
       gcc = forceBuildDrv (lib.addMetaAttrs { platforms = []; } (
@@ -6076,6 +6078,15 @@ let
       paths = [ w32api mingw_runtime ];
     };
 
+    mingw_w64 = callPackage ../os-specific/windows/mingw-w64 {
+      gccCross = gccCrossStageStatic;
+      binutilsCross = binutilsCross;
+    };
+
+    mingw_w64_headers = callPackage ../os-specific/windows/mingw-w64 {
+      onlyHeaders = true;
+    };
+
     pthreads = callPackage ../os-specific/windows/pthread-w32 {
       mingw_headers = mingw_headers2;
     };