Merge older staging

This still causes some uncached rebuilds, but master(!) and staging
move too fast forward rebuild-wise, so Hydra might never catch up.
(There are also other occasional problems.)
Therefore I merge at this point where the rebuild isn't that bad.

pkgs/development/compilers/bigloo/default.nix

@@ -32,6 +32,9 @@ stdenv.mkDerivation rec {
 
   checkTarget = "test";
 
+  # Hack to avoid TMPDIR in RPATHs.
+  preFixup = ''rm -rf "$(pwd)" '';
+
   meta = {
     description = "Efficient Scheme compiler";
     homepage    = http://www-sop.inria.fr/indes/fp/Bigloo/;

pkgs/development/compilers/llvm/3.9/clang/default.nix

@@ -13,7 +13,9 @@ let
       mv clang-tools-extra-* $sourceRoot/tools/extra
     '';
 
-    buildInputs = [ cmake libedit libxml2 llvm python ];
+    nativeBuildInputs = [ cmake ];
+
+    buildInputs = [ libedit libxml2 llvm python ];
 
     cmakeFlags = [
       "-DCMAKE_CXX_FLAGS=-std=c++11"

pkgs/development/compilers/llvm/3.9/llvm.nix

@@ -15,10 +15,15 @@
 , compiler-rt_src
 , libcxxabi
 , debugVersion ? false
-, enableSharedLibraries ? true
+, enableSharedLibraries ? (buildPlatform == hostPlatform)
 , darwin
+, buildPackages
+, buildPlatform
+, hostPlatform
 }:
 
+assert (hostPlatform != buildPlatform) -> !enableSharedLibraries;
+
 let
   src = fetch "llvm" "1vi9sf7rx1q04wj479rsvxayb6z740iaz3qniwp266fgp5a07n8z";
   shlib = if stdenv.isDarwin then "dylib" else "so";
@@ -39,8 +44,17 @@ in stdenv.mkDerivation rec {
 
   outputs = [ "out" ] ++ stdenv.lib.optional enableSharedLibraries "lib";
 
-  buildInputs = [ perl groff cmake libxml2 python libffi ]
-    ++ stdenv.lib.optionals stdenv.isDarwin [ libcxxabi ];
+  nativeBuildInputs = [
+    perl
+    cmake
+    python
+  ];
+
+  buildInputs = [
+    groff
+    libxml2
+    libffi
+  ] ++ stdenv.lib.optionals stdenv.isDarwin [ libcxxabi ];
 
   propagatedBuildInputs = [ ncurses zlib ];
 
@@ -88,6 +102,9 @@ in stdenv.mkDerivation rec {
     ++ stdenv.lib.optionals (isDarwin) [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DCAN_TARGET_i386=false"
+  ] ++ stdenv.lib.optionals (buildPlatform != hostPlatform) [
+    "-DCMAKE_CROSSCOMPILING=True"
+    "-DLLVM_TABLEGEN=${buildPackages.llvmPackages_39.llvm}/bin/llvm-tblgen"
   ];
 
   postBuild = ''

pkgs/development/compilers/swift/default.nix

@@ -253,6 +253,9 @@ stdenv.mkDerivation rec {
     ln -s ${binutils}/bin/ar $out/bin/ar
   '';
 
+  # Hack to avoid TMPDIR in RPATHs.
+  preFixup = ''rm -rf "$(pwd)" '';
+
   meta = with stdenv.lib; {
     description = "The Swift Programming Language";
     homepage = "https://github.com/apple/swift";