llvm: Split llvmFull into separate derivations

Now most packages in the llvm suite are built as separate derivations.
The exceptions are:

* compiler-rt must currently be built with llvm. This increases llvm's
  size by 6 MB
* clang-tools-extra must be built with clang

In addition, the top-level llvm attribute is defaulted to llvm 3.4, and
llvm 3.3 must be accessed by the llvm_33 attribute. This is to make the
out-of-date packages obvious in the hope that eventually all will be
updated to work with 3.4 and 3.3 can be removed. I think we should keep
this policy in the future (latest llvm gets top-level name, the rest are
versioned until they can be removed).

The llvm packages (except libc++, which exception I will try to remove
on the next update) can all be accessed via the llvmPackages attribute,
and there are also aliases for the packages that already existed (llvm,
clang, and dragonegg).

Signed-off-by: Shea Levy <shea@shealevy.com>

pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix

@@ -1,4 +1,4 @@
-{ clangStdenv, fetchgit, llvmFull }:
+{ clangStdenv, fetchgit, llvm, clang }:
 
 clangStdenv.mkDerivation {
   name = "emacs-clang-complete-async-20130218";
@@ -8,7 +8,7 @@ clangStdenv.mkDerivation {
     sha256 = "1c8zqi6axbsb951azz9iqx3j52j30nd9ypv396hvids3g02cirrf";
   };
 
-  buildInputs = [ llvmFull ];
+  buildInputs = [ llvm clang.clang ];
 
   installPhase = ''
     mkdir -p $out/bin

pkgs/development/compilers/llvm/3.3/llvm.nix

@@ -1,27 +1,20 @@
-{ stdenv, fetchurl, perl, groff, cmake, python, libffi, binutils, version }:
-
-with { inherit (stdenv.lib) optional optionals; };
-
-assert version == "3.4" || version == "3.3";
-
-stdenv.mkDerivation rec {
+{ stdenv, fetchurl, perl, groff, cmake, python, libffi, binutils }:
+let
+  version = "3.3";
+in stdenv.mkDerivation rec {
   name = "llvm-${version}";
 
   src = fetchurl {
-    url    = "http://llvm.org/releases/${version}/llvm-${version}.src.tar.gz";
-    sha256 =
-      if version == "3.4" then "0a169ba045r4apb9cv6ncrwl83l7yiajnzirkcdlhj1cd4nn3995"
-        else       /*3.3*/     "0y3mfbb5qzcpw3v5qncn69x1hdrrrfirgs82ypi2annhf0g6nxk8";
+    url = "http://llvm.org/releases/${version}/llvm-${version}.src.tar.gz";
+    sha256 = "0y3mfbb5qzcpw3v5qncn69x1hdrrrfirgs82ypi2annhf0g6nxk8";
   };
 
-  patches = optionals (version == "3.3") [
+  patches = [
     ./more-memory-for-bugpoint.patch # The default rlimits in 3.3 are too low for shared libraries.
     ./no-rule-aarch64.patch          # http://llvm.org/bugs/show_bug.cgi?id=16625
   ];
 
-  # libffi was propagated before, but it wasn't even being used, so
-  # unless something needs it just an input is fine.
-  buildInputs = [ perl groff cmake python libffi ]; # ToDo: polly, libc++; enable cxx11?
+  buildInputs = [ perl groff cmake python libffi ];
 
   # hacky fix: created binaries need to be run before installation
   preBuild = let LD = if stdenv.isDarwin then "DYLD" else "LD";
@@ -31,9 +24,8 @@ stdenv.mkDerivation rec {
     "-DCMAKE_BUILD_TYPE=Release"
     "-DLLVM_ENABLE_FFI=ON"
     "-DLLVM_BINUTILS_INCDIR=${binutils}/include"
-  ]
-    ++ optional (version == "3.3") "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=R600" # for mesa
-    ++ optional (!isDarwin) "-DBUILD_SHARED_LIBS=ON";
+    "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=R600" # for mesa
+  ] ++ stdenv.lib.optional (!isDarwin) "-DBUILD_SHARED_LIBS=ON";
 
   enableParallelBuilding = true;
 

pkgs/development/compilers/llvm/3.4/clang-separate-build.patch

@@ -0,0 +1,8 @@
+diff -Naur clang-3.4-orig/tools/extra/CMakeLists.txt clang-3.4/tools/extra/CMakeLists.txt
+--- clang-3.4-orig/tools/extra/CMakeLists.txt	2013-11-07 19:08:23.000000000 -0500
++++ clang-3.4/tools/extra/CMakeLists.txt	2014-01-20 11:47:22.678435223 -0500
+@@ -1,3 +1,4 @@
++include(CheckLibraryExists)
+ check_library_exists(edit el_init "" HAVE_LIBEDIT)
+ 
+ add_subdirectory(clang-apply-replacements)

pkgs/development/compilers/llvm/3.4/clang.nix

@@ -0,0 +1,41 @@
+{ stdenv, fetch, cmake, libxml2, libedit, llvm, version }:
+
+stdenv.mkDerivation {
+  name = "clang-${version}";
+
+  unpackPhase = ''
+    unpackFile ${fetch "clang" "06rb4j1ifbznl3gfhl98s7ilj0ns01p7y7zap4p7ynmqnc6pia92"}
+    mv clang-${version} clang
+    sourceRoot=$PWD/clang
+    unpackFile ${fetch "clang-tools-extra" "1d1822mwxxl9agmyacqjw800kzz5x8xr0sdmi8fgx5xfa5sii1ds"}
+    mv clang-tools-extra-${version} $sourceRoot/tools/extra
+    # !!! Hopefully won't be needed for 3.5
+    unpackFile ${llvm.src}
+    export cmakeFlags="$cmakeFlags -DCLANG_PATH_TO_LLVM_SOURCE=$PWD/llvm-${version}"
+    (cd llvm-${version} && patch -Np1 -i ${./llvm-separate-build.patch})
+  '';
+
+  patches = [ ./clang-separate-build.patch ];
+
+  buildInputs = [ cmake libedit libxml2 ];
+
+  cmakeFlags = [
+    "-DCMAKE_BUILD_TYPE=Release"
+    "-DGCC_INSTALL_PREFIX=${stdenv.gcc.gcc}"
+    "-DC_INCLUDE_DIRS=${stdenv.gcc.libc}/include/"
+    "-DCMAKE_CXX_FLAGS=-std=c++11"
+    "-DCLANG_PATH_TO_LLVM_BUILD=${llvm}"
+  ];
+
+  passthru.gcc = stdenv.gcc.gcc;
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "A c, c++, objective-c, and objective-c++ frontend for the llvm compiler";
+    homepage    = http://llvm.org/;
+    license     = stdenv.lib.licenses.bsd3;
+    maintainers = [ stdenv.lib.maintainers.shlevy ];
+    platforms   = stdenv.lib.platforms.all;
+  };
+}

pkgs/development/compilers/llvm/3.4/default.nix

@@ -0,0 +1,25 @@
+{ newScope, stdenv, isl, fetchurl }:
+let
+  callPackage = newScope (self // { inherit stdenv isl version fetch; });
+
+  version = "3.4";
+
+  fetch = name: sha256: fetchurl {
+    url = "http://llvm.org/releases/${version}/${name}-${version}.src.tar.gz";
+    inherit sha256;
+  };
+
+  self = {
+    llvm = callPackage ./llvm.nix {};
+
+    clang = callPackage ./clang.nix {};
+
+    lld = callPackage ./lld.nix {};
+
+    lldb = callPackage ./lldb.nix {};
+
+    polly = callPackage ./polly.nix {};
+
+    dragonegg = callPackage ./dragonegg.nix {};
+  };
+in self

pkgs/development/compilers/llvm/3.4/dragonegg.nix

@@ -1,13 +1,9 @@
-{stdenv, fetchurl, llvm, gmp, mpfr, mpc, ncurses, zlib}:
+{stdenv, fetch, llvm, gmp, mpfr, mpc, ncurses, zlib, version}:
 
 stdenv.mkDerivation rec {
-  version = "3.4";
   name = "dragonegg-${version}";
 
-  src = fetchurl {
-    url = "http://llvm.org/releases/${version}/${name}.src.tar.gz";
-    sha256 = "1733czbvby1ww3xkwcwmm0km0bpwhfyxvf56wb0zv5gksp3kbgrl";
-  };
+  src = fetch "dragonegg" "1733czbvby1ww3xkwcwmm0km0bpwhfyxvf56wb0zv5gksp3kbgrl";
 
   # The gcc the plugin will be built for (the same used building dragonegg)
   GCC = "gcc";
@@ -24,7 +20,7 @@ stdenv.mkDerivation rec {
     homepage = http://dragonegg.llvm.org/;
     description = "gcc plugin that replaces gcc's optimizers and code generators by those in LLVM";
     license = "GPLv2+";
-    maintainers = with stdenv.lib.maintainers; [viric];
+    maintainers = with stdenv.lib.maintainers; [viric shlevy];
     platforms = with stdenv.lib.platforms; linux;
   };
 }

pkgs/development/compilers/llvm/3.4/lld.nix

@@ -0,0 +1,31 @@
+{ stdenv, fetch, cmake, llvm, ncurses, zlib, python, version }:
+
+stdenv.mkDerivation {
+  name = "lld-${version}";
+
+  src = fetch "lld" "1sd4scqynryfrmcc4h0ljgwn2dgjmbbmf38z50ya6l0janpd2nxz";
+
+  preUnpack = ''
+    # !!! Hopefully won't be needed for 3.5
+    unpackFile ${llvm.src}
+    export cmakeFlags="$cmakeFlags -DLLD_PATH_TO_LLVM_SOURCE=$PWD/llvm-${version}"
+  '';
+
+  buildInputs = [ cmake ncurses zlib python ];
+
+  cmakeFlags = [
+    "-DCMAKE_BUILD_TYPE=Release"
+    "-DCMAKE_CXX_FLAGS=-std=c++11"
+    "-DLLD_PATH_TO_LLVM_BUILD=${llvm}"
+  ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "A set of modular code for creating linker tools";
+    homepage    = http://llvm.org/;
+    license     = stdenv.lib.licenses.bsd3;
+    maintainers = [ stdenv.lib.maintainers.shlevy ];
+    platforms   = stdenv.lib.platforms.all;
+  };
+}

pkgs/development/compilers/llvm/3.4/lldb.nix

@@ -0,0 +1,44 @@
+{ stdenv
+, fetch
+, cmake
+, zlib
+, ncurses
+, swig
+, which
+, libedit
+, llvm
+, clang
+, python
+, version
+}:
+
+stdenv.mkDerivation {
+  name = "lldb-${version}";
+
+  src = fetch "lldb" "0h8cmjrhjhigk7k2qll1pcf6jfgmbdzkzfz2i048pkfg851s0x4g";
+
+  patchPhase = ''
+    sed -i 's|/usr/bin/env||' \
+      scripts/Python/finish-swig-Python-LLDB.sh \
+      scripts/Python/build-swig-Python.sh
+  '';
+
+  buildInputs = [ cmake python which swig ncurses zlib libedit ];
+
+  cmakeFlags = [
+    "-DCMAKE_BUILD_TYPE=Release"
+    "-DCMAKE_CXX_FLAGS=-std=c++11"
+    "-DLLDB_PATH_TO_LLVM_BUILD=${llvm}"
+    "-DLLDB_PATH_TO_CLANG_BUILD=${clang}"
+  ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "A next-generation high-performance debugger";
+    homepage    = http://llvm.org/;
+    license     = stdenv.lib.licenses.bsd3;
+    maintainers = [ stdenv.lib.maintainers.shlevy ];
+    platforms   = stdenv.lib.platforms.all;
+  };
+}

pkgs/development/compilers/llvm/3.4/llvm-separate-build.patch

@@ -0,0 +1,12 @@
+diff -Naur llvm-3.4-orig/cmake/modules/TableGen.cmake llvm-3.4/cmake/modules/TableGen.cmake
+--- llvm-3.4-orig/cmake/modules/TableGen.cmake	2013-10-06 21:00:07.000000000 -0400
++++ llvm-3.4/cmake/modules/TableGen.cmake	2014-01-20 13:06:55.273022149 -0500
+@@ -78,8 +78,6 @@
+ endif()
+ 
+ macro(add_tablegen target project)
+-  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_TOOLS_BINARY_DIR})
+-
+   set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
+   set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
+   add_llvm_utility(${target} ${ARGN})

pkgs/development/compilers/llvm/3.4/llvm.nix

@@ -0,0 +1,55 @@
+{ stdenv
+, fetch
+, perl
+, groff
+, cmake
+, python
+, libffi
+, binutils
+, libxml2
+, valgrind
+, ncurses
+, version
+}:
+
+let
+  src = fetch "llvm" "0a169ba045r4apb9cv6ncrwl83l7yiajnzirkcdlhj1cd4nn3995";
+in stdenv.mkDerivation rec {
+  name = "llvm-${version}";
+
+  unpackPhase = ''
+    unpackFile ${src}
+    mv llvm-${version} llvm
+    sourceRoot=$PWD/llvm
+    unpackFile ${fetch "compiler-rt" "0p5b6varxdqn7q3n77xym63hhq4qqxd2981pfpa65r1w72qqjz7k"}
+    mv compiler-rt-${version} $sourceRoot/projects/compiler-rt
+  '';
+
+  buildInputs = [ perl groff cmake libxml2 python libffi valgrind ncurses ];
+
+  # hacky fix: created binaries need to be run before installation
+  preBuild = ''
+    mkdir -p $out/
+    ln -sv $PWD/lib $out
+  '';
+  postBuild = "rm -fR $out";
+
+  cmakeFlags = with stdenv; [
+    "-DCMAKE_BUILD_TYPE=Release"
+    "-DLLVM_ENABLE_FFI=ON"
+    "-DLLVM_BINUTILS_INCDIR=${binutils}/include"
+    "-DCMAKE_CXX_FLAGS=-std=c++11"
+  ] ++ stdenv.lib.optional (!isDarwin) "-DBUILD_SHARED_LIBS=ON";
+
+  enableParallelBuilding = true;
+
+  passthru.src = src;
+
+  meta = {
+    description = "Collection of modular and reusable compiler and toolchain technologies";
+    homepage    = http://llvm.org/;
+    license     = stdenv.lib.licenses.bsd3;
+    maintainers = with stdenv.lib.maintainers; [ shlevy lovek323 raskin viric ];
+    platforms   = stdenv.lib.platforms.all;
+  };
+}

pkgs/development/compilers/llvm/3.4/polly-separate-build.patch

@@ -0,0 +1,12 @@
+diff -Naur polly-3.4-orig/CMakeLists.txt polly-3.4/CMakeLists.txt
+--- polly-3.4-orig/CMakeLists.txt	2013-11-21 06:51:46.000000000 -0500
++++ polly-3.4/CMakeLists.txt	2014-01-20 18:49:34.907919933 -0500
+@@ -53,7 +53,7 @@
+   execute_process(COMMAND "${LLVM_INSTALL_ROOT}/bin/llvm-config" --cxxflags
+                   OUTPUT_VARIABLE LLVM_CXX_FLAGS
+                   OUTPUT_STRIP_TRAILING_WHITESPACE)
+-  set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} ${LLVM_CXX_FLAGS})
++  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LLVM_CXX_FLAGS}")
+ endif(NOT DEFINED LLVM_MAIN_SRC_DIR)
+ 
+ set(POLLY_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})

pkgs/development/compilers/llvm/3.4/polly.nix

@@ -0,0 +1,27 @@
+{ stdenv, fetch, cmake, isl, python, gmp, llvm, version }:
+
+stdenv.mkDerivation {
+  name = "polly-${version}";
+
+  src =  fetch "polly" "1rqflmgzg1vzjm0r32c5ck8x3q0qm3g0hh8ggbjazh6x7nvmy6lz";
+
+  patches = [ ./polly-separate-build.patch ];
+
+  buildInputs = [ cmake isl python gmp ];
+
+  cmakeFlags = [
+    "-DCMAKE_BUILD_TYPE=Release"
+    "-DCMAKE_CXX_FLAGS=-std=c++11"
+    "-DLLVM_INSTALL_ROOT=${llvm}"
+  ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "A polyhedral optimizer for llvm";
+    homepage    = http://llvm.org/;
+    license     = stdenv.lib.licenses.bsd3;
+    maintainers = [ stdenv.lib.maintainers.shlevy ];
+    platforms   = stdenv.lib.platforms.all;
+  };
+}

pkgs/development/compilers/llvm/full.nix

@@ -1,89 +0,0 @@
-{ stdenv
-, fetchurl
-, perl, groff
-, cmake
-, libxml2
-, python
-, libffi
-, zlib
-, ncurses
-, isl
-, gmp
-, doxygen
-, binutils
-, swig
-, which
-, libedit
-, valgrind
-}:
-
-let
-  version = "3.4";
-
-  fetch = name: sha256: fetchurl {
-    url = "http://llvm.org/releases/${version}/${name}-${version}.src.tar.gz";
-    inherit sha256;
-  };
-
-  inherit (stdenv.lib) concatStrings mapAttrsToList;
-in stdenv.mkDerivation {
-  name = "llvm-full-${version}";
-
-  unpackPhase = ''
-    unpackFile ${fetch "llvm" "0a169ba045r4apb9cv6ncrwl83l7yiajnzirkcdlhj1cd4nn3995"}
-    mv llvm-${version} llvm
-    sourceRoot=$PWD/llvm
-    ${concatStrings (mapAttrsToList (name: { location, sha256 }: ''
-      unpackFile ${fetch name sha256}
-      mv ${name}-${version} $sourceRoot/${location}
-    '') {
-      clang = { location = "tools/clang"; sha256 = "06rb4j1ifbznl3gfhl98s7ilj0ns01p7y7zap4p7ynmqnc6pia92"; };
-      clang-tools-extra = { location = "tools/clang/tools/extra"; sha256 = "1d1822mwxxl9agmyacqjw800kzz5x8xr0sdmi8fgx5xfa5sii1ds"; };
-      compiler-rt = { location = "projects/compiler-rt"; sha256 = "0p5b6varxdqn7q3n77xym63hhq4qqxd2981pfpa65r1w72qqjz7k"; };
-      lld = { location = "tools/lld"; sha256 = "1sd4scqynryfrmcc4h0ljgwn2dgjmbbmf38z50ya6l0janpd2nxz"; };
-      lldb = { location = "tools/lldb"; sha256 = "0h8cmjrhjhigk7k2qll1pcf6jfgmbdzkzfz2i048pkfg851s0x4g"; };
-      polly = { location = "tools/polly"; sha256 = "1rqflmgzg1vzjm0r32c5ck8x3q0qm3g0hh8ggbjazh6x7nvmy6lz"; };
-    })}
-    sed -i 's|/usr/bin/env||' \
-      $sourceRoot/tools/lldb/scripts/Python/finish-swig-Python-LLDB.sh \
-      $sourceRoot/tools/lldb/scripts/Python/build-swig-Python.sh
-  '';
-
-  buildInputs = [ perl
-                  groff
-                  cmake
-                  libxml2
-                  python
-                  libffi
-                  zlib
-                  ncurses
-                  isl
-                  gmp
-                  doxygen
-                  swig
-                  which
-                  libedit
-                  valgrind
-                ];
-
-  cmakeFlags = [
-    "-DCMAKE_BUILD_TYPE=Release"
-    "-DLLVM_ENABLE_FFI=ON"
-    "-DGCC_INSTALL_PREFIX=${stdenv.gcc.gcc}"
-    "-DC_INCLUDE_DIRS=${stdenv.gcc.libc}/include/"
-    "-DLLVM_BINUTILS_INCDIR=${binutils}/include"
-    "-DCMAKE_CXX_FLAGS=-std=c++11"
-  ];
-
-  passthru.gcc = stdenv.gcc.gcc;
-
-  enableParallelBuilding = true;
-
-  meta = {
-    description = "Collection of modular and reusable compiler and toolchain technologies";
-    homepage    = http://llvm.org/;
-    license     = stdenv.lib.licenses.bsd3;
-    maintainers = [ stdenv.lib.maintainers.shlevy ];
-    platforms   = stdenv.lib.platforms.all;
-  };
-}

pkgs/development/libraries/libc++/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchsvn, cmake, libcxxabi }:
+{ stdenv, fetchurl, fetchsvn, cmake, libcxxabi, python }:
 
 let
   version = "3.4";
@@ -11,7 +11,7 @@ in stdenv.mkDerivation rec {
     sha256 = "1sqd5qhqj7qnn9zjxx9bv7ky4f7xgmh9sbgd53y1kszhg41217xx";
   };
 
-  buildInputs = [ cmake libcxxabi ];
+  buildInputs = [ cmake libcxxabi python ];
 
   cmakeFlags = [ "-DCMAKE_BUILD_TYPE=Release"
                  "-DLIBCXX_LIBCXXABI_INCLUDE_PATHS=${libcxxabi}/include"

pkgs/top-level/all-packages.nix

@@ -2298,12 +2298,9 @@ let
 
   ccl = builderDefsPackage ../development/compilers/ccl {};
 
-  clang = wrapClang llvmFull;
+  clang = wrapClang llvmPackages.clang;
 
-  llvmFullSelf = clangWrapSelf (llvmFull.override {
-
-     stdenv = libcxxStdenv;
-  });
+  clangSelf = clangWrapSelf llvmPackagesSelf.clang;
 
   clangWrapSelf = build: (import ../build-support/clang-wrapper) {
     clang = build;
@@ -2318,7 +2315,7 @@ let
 
   #Use this instead of stdenv to build with clang
   clangStdenv = lowPrio (stdenvAdapters.overrideGCC stdenv clang);
-  libcxxStdenv = stdenvAdapters.overrideGCC stdenv (clangWrapSelf llvmFull);
+  libcxxStdenv = stdenvAdapters.overrideGCC stdenv (clangWrapSelf llvmPackages.clang);
 
   clean = callPackage ../development/compilers/clean { };
 
@@ -2751,6 +2748,7 @@ let
 
   julia = callPackage ../development/compilers/julia {
     liblapack = liblapack.override {shared = true;};
+    llvm = llvm_33;
   };
 
   lazarus = builderDefsPackage (import ../development/compilers/fpc/lazarus.nix) {
@@ -2761,17 +2759,14 @@ let
 
   lessc = callPackage ../development/compilers/lessc { };
 
-  llvm = llvm_33;
-  llvm_34 = callPackage ../development/compilers/llvm {
-    version = "3.4";
+  llvm = llvmPackages.llvm;
+  llvm_33 = callPackage ../development/compilers/llvm/3.3/llvm.nix {
     stdenv = if stdenv.isDarwin
       then stdenvAdapters.overrideGCC stdenv gccApple
       else stdenv;
   };
-  llvm_33 = llvm_34.override { version = "3.3"; };
-  llvmFull = callPackage ../development/compilers/llvm/full.nix {
-    isl = isl_0_12;
-  };
+  llvmPackages = recurseIntoAttrs (import ../development/compilers/llvm/3.4 { inherit newScope stdenv fetchurl; isl = isl_0_12; });
+  llvmPackagesSelf = recurseIntoAttrs (import ../development/compilers/llvm/3.4 { inherit newScope fetchurl; isl = isl_0_12; stdenv = libcxxStdenv; });
 
   mentorToolchains = recurseIntoAttrs (
     callPackage_i686 ../development/compilers/mentor {}
@@ -3961,7 +3956,7 @@ let
 
   dssi = callPackage ../development/libraries/dssi {};
 
-  dragonegg = callPackage ../development/compilers/llvm/dragonegg.nix { llvm = llvmFull; };
+  dragonegg = llvmPackages.dragonegg;
 
   dxflib = callPackage ../development/libraries/dxflib {};
 
@@ -5084,7 +5079,7 @@ let
 
   mesaSupported = lib.elem system lib.platforms.mesaPlatforms;
 
-  mesa_original = callPackage ../development/libraries/mesa { };
+  mesa_original = callPackage ../development/libraries/mesa { llvm = llvm_33; };
   mesa_noglu = if stdenv.isDarwin
     then darwinX11AndOpenGL // { driverLink = mesa_noglu; }
     else mesa_original;