Adding LLVM 3.1. (as a separate attribute, because it seems to be API-incompatible)

svn path=/nixpkgs/trunk/; revision=34300

pkgs/development/compilers/llvm/3.1.nix

@@ -0,0 +1,27 @@
+{ stdenv, fetchurl, perl, groff, cmake, python }:
+
+let version = "3.1"; in
+
+stdenv.mkDerivation {
+  name = "llvm-${version}";
+
+  src = fetchurl {
+    url    = "http://llvm.org/releases/${version}/llvm-${version}.src.tar.gz";
+    sha256 = "1ea05135197b5400c1f88d00ff280d775ce778f8f9ea042e25a1e1e734a4b9ab";
+  };
+
+  buildInputs = [ perl groff cmake python ];
+
+  cmakeFlags = [ "-DCMAKE_BUILD_TYPE=Release" ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    homepage = http://llvm.org/;
+    description = "Collection of modular and reusable compiler and toolchain technologies";
+    license = "BSD";
+    maintainers = with stdenv.lib.maintainers; [viric shlevy];
+    platforms = with stdenv.lib.platforms; all;
+  };
+}
+

pkgs/top-level/all-packages.nix

@@ -2302,6 +2302,7 @@ let
   };
 
   llvm = callPackage ../development/compilers/llvm { };
+  llvm_3_1 = callPackage ../development/compilers/llvm/3.1.nix { };
 
   mitscheme = callPackage ../development/compilers/mit-scheme { };