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out-of-date packages obvious in the hope that eventually all will be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>

17 files changed, 282 insertions, 133 deletions

diff --git a/pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix b/pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix
index 6d10244a8795..b23c6da6123c 100644
--- a/pkgs/applications/editors/emacs-modes/emacs-clang-complete-async/default.nix
+++ b/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 $out/bin
diff --git a/pkgs/development/compilers/llvm/default.nix b/pkgs/development/compilers/llvm/3.3/llvm.nix
index 73eb7135ca44..e40014a960c4 100644
--- a/pkgs/development/compilers/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/3.3/llvm.nix
@@ -1,27 +1,20 @@
-{ stdenv, fetchurl, perl, groff, cmake, python, libffi, binutils, version }:
-
-with { inherit (stdenv.lib) optional optionals; };
-
-assert version == "3.4" || version == "3.3";
-
-stdenv.mkDerivation rec {
+{ stdenv, fetchurl, perl, groff, cmake, python, libffi, binutils }:
+let
+  version = "3.3";
+in stdenv.mkDerivation rec {
   name = "llvm-${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;
 
diff --git a/pkgs/development/compilers/llvm/more-memory-for-bugpoint.patch b/pkgs/development/compilers/llvm/3.3/more-memory-for-bugpoint.patch
index fa19ce4f5871..fa19ce4f5871 100644
--- a/pkgs/development/compilers/llvm/more-memory-for-bugpoint.patch
+++ b/pkgs/development/compilers/llvm/3.3/more-memory-for-bugpoint.patch
diff --git a/pkgs/development/compilers/llvm/no-rule-aarch64.patch b/pkgs/development/compilers/llvm/3.3/no-rule-aarch64.patch
index ea7214febe5a..ea7214febe5a 100644
--- a/pkgs/development/compilers/llvm/no-rule-aarch64.patch
+++ b/pkgs/development/compilers/llvm/3.3/no-rule-aarch64.patch
diff --git a/pkgs/development/compilers/llvm/3.4/clang-separate-build.patch b/pkgs/development/compilers/llvm/3.4/clang-separate-build.patch
new file mode 100644
index 000000000000..5fb67f169f45
--- /dev/null
+++ b/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)
diff --git a/pkgs/development/compilers/llvm/3.4/clang.nix b/pkgs/development/compilers/llvm/3.4/clang.nix
new file mode 100644
index 000000000000..22a1e112b9d2
--- /dev/null
+++ b/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;
+  };
+}
diff --git a/pkgs/development/compilers/llvm/3.4/default.nix b/pkgs/development/compilers/llvm/3.4/default.nix
new file mode 100644
index 000000000000..0a8a72f59a96
--- /dev/null
+++ b/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
diff --git a/pkgs/development/compilers/llvm/dragonegg.nix b/pkgs/development/compilers/llvm/3.4/dragonegg.nix
index 38d3546d9819..f8ea44793de0 100644
--- a/pkgs/development/compilers/llvm/dragonegg.nix
+++ b/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;
   };
 }
diff --git a/pkgs/development/compilers/llvm/3.4/lld.nix b/pkgs/development/compilers/llvm/3.4/lld.nix
new file mode 100644
index 000000000000..22eb02a0e35b
--- /dev/null
+++ b/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=${llvm}"
+  ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "A set of modular code for creating linker tools";
+    homepage    = http://llvm.org/;
+    license     = stdenv.lib.licenses.bsd3;
+    maintainers = [ stdenv.lib.maintainers.shlevy ];
+    platforms   = stdenv.lib.platforms.all;
+  };
+}
diff --git a/pkgs/development/compilers/llvm/3.4/lldb.nix b/pkgs/development/compilers/llvm/3.4/lldb.nix
new file mode 100644
index 000000000000..7b35119a93fb
--- /dev/null
+++ b/pkgs/development/compilers/llvm/3.4/lldb.nix
@@ -0,0 +1,44 @@
+{ stdenv
+, fetch
+, cmake
+, zlib
+, ncurses
+, swig
+, which
+, libedit
+, llvm
+, clang
+, python
+, version
+}:
+
+stdenv.mkDerivation {
+  name = "lldb-${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;
+  };
+}
diff --git a/pkgs/development/compilers/llvm/3.4/llvm-separate-build.patch b/pkgs/development/compilers/llvm/3.4/llvm-separate-build.patch
new file mode 100644
index 000000000000..abfc11513cdc
--- /dev/null
+++ b/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} ${ARGN})
diff --git a/pkgs/development/compilers/llvm/3.4/llvm.nix b/pkgs/development/compilers/llvm/3.4/llvm.nix
new file mode 100644
index 000000000000..4947bdca2a96
--- /dev/null
+++ b/pkgs/development/compilers/llvm/3.4/llvm.nix
@@ -0,0 +1,55 @@
+{ stdenv
+, fetch
+, perl
+, groff
+, cmake
+, python
+, libffi
+, binutils
+, libxml2
+, valgrind
+, ncurses
+, version
+}:
+
+let
+  src = fetch "llvm" "0a169ba045r4apb9cv6ncrwl83l7yiajnzirkcdlhj1cd4nn3995";
+in stdenv.mkDerivation rec {
+  name = "llvm-${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;
+  };
+}
diff --git a/pkgs/development/compilers/llvm/3.4/polly-separate-build.patch b/pkgs/development/compilers/llvm/3.4/polly-separate-build.patch
new file mode 100644
index 000000000000..618dd4dc3b12
--- /dev/null
+++ b/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 ${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/pkgs/development/compilers/llvm/3.4/polly.nix b/pkgs/development/compilers/llvm/3.4/polly.nix
new file mode 100644
index 000000000000..61721ffad67d
--- /dev/null
+++ b/pkgs/development/compilers/llvm/3.4/polly.nix
@@ -0,0 +1,27 @@
+{ stdenv, fetch, cmake, isl, python, gmp, llvm, version }:
+
+stdenv.mkDerivation {
+  name = "polly-${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=${llvm}"
+  ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    description = "A polyhedral optimizer for llvm";
+    homepage    = http://llvm.org/;
+    license     = stdenv.lib.licenses.bsd3;
+    maintainers = [ stdenv.lib.maintainers.shlevy ];
+    platforms   = stdenv.lib.platforms.all;
+  };
+}
diff --git a/pkgs/development/compilers/llvm/full.nix b/pkgs/development/compilers/llvm/full.nix
deleted file mode 100644
index 9c63502d8cd0..000000000000
--- a/pkgs/development/compilers/llvm/full.nix
+++ /dev/null
@@ -1,89 +0,0 @@
-{ stdenv
-, fetchurl
-, perl, groff
-, cmake
-, libxml2
-, python
-, libffi
-, zlib
-, ncurses
-, isl
-, gmp
-, doxygen
-, binutils
-, swig
-, which
-, libedit
-, valgrind
-}:
-
-let
-  version = "3.4";
-
-  fetch = name: sha256: fetchurl {
-    url = "http://llvm.org/releases/${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;
-  };
-}
diff --git a/pkgs/development/libraries/libc++/default.nix b/pkgs/development/libraries/libc++/default.nix
index 964d3727f8f2..70da4462486d 100644
--- a/pkgs/development/libraries/libc++/default.nix
+++ b/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"
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 897fae64af57..d58fda4e52f5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/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;