Added GHC HEAD snapshot.

svn path=/nixpkgs/trunk/; revision=17227

pkgs/development/compilers/ghc/6.11.nix

@@ -0,0 +1,31 @@
+{stdenv, fetchurl, libedit, ghc, perl, gmp, ncurses, happy, alex}:
+
+stdenv.mkDerivation rec {
+  version = "6.11.20090916";
+  
+  name = "ghc-${version}";
+  
+  homepage = "http://haskell.org/ghc";
+
+  src = fetchurl {
+    url = "${homepage}/dist/current/dist/${name}-src.tar.bz2";
+    sha256 = "a229c5052f401d03cdb77b8a96643eb80ba3faf1a9d0578c6fede1ce2a63cede";
+  };
+
+  buildInputs = [ghc libedit perl gmp happy alex];
+
+  configureFlags=[
+    "--with-gmp-libraries=${gmp}/lib"
+    "--with-gmp-includes=${gmp}/include"
+    "--with-gcc=${stdenv.gcc}/bin/gcc"
+  ];
+
+  preConfigure=[
+    "make distclean"
+  ];
+
+  meta = {
+    inherit homepage;
+    description = "The Glasgow Haskell Compiler";
+  };
+}