clang: move libclang to separate lib output

Currently clang-unwrapped can't be used as a buildInput without also
shadowing clang/clang++ of a clang based stdenv.

pkgs/development/compilers/llvm/3.8/clang/default.nix

@@ -29,7 +29,7 @@ let
       sed -i -e 's/DriverArgs.hasArg(options::OPT_nostdlibinc)/true/' lib/Driver/ToolChains.cpp
     '';
 
-    outputs = [ "out" "python" ];
+    outputs = [ "out" "lib" "python" ];
 
     # Clang expects to find LLVMgold in its own prefix
     # Clang expects to find sanitizer libraries in its own prefix
@@ -38,6 +38,9 @@ let
       ln -sv ${llvm}/lib/clang/${version}/lib $out/lib/clang/${version}/
       ln -sv $out/bin/clang $out/bin/cpp
 
+      # Move libclang to 'lib' output
+      moveToOutput "lib/libclang.*" "$lib"
+
       mkdir -p $python/bin $python/share/clang/
       mv $out/bin/{git-clang-format,scan-view} $python/bin
       if [ -e $out/bin/set-xcode-analyzer ]; then
@@ -51,7 +54,6 @@ let
     enableParallelBuilding = true;
 
     passthru = {
-      lib = self; # compatibility with gcc, so that `stdenv.cc.cc.lib` works on both
       isClang = true;
       inherit llvm;
     } // stdenv.lib.optionalAttrs stdenv.isLinux {

pkgs/development/compilers/llvm/3.8/default.nix

@@ -22,6 +22,8 @@ let
       inherit clang-tools-extra_src stdenv;
     };
 
+    libclang = self.clang-unwrapped.lib;
+
     clang = if stdenv.cc.isGNU then self.libstdcxxClang else self.libcxxClang;
 
     libstdcxxClang = ccWrapperFun {

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

@@ -31,7 +31,7 @@ let
       sed -i -e 's/DriverArgs.hasArg(options::OPT_nostdlibinc)/true/' lib/Driver/ToolChains.cpp
     '';
 
-    outputs = [ "out" "python" ];
+    outputs = [ "out" "lib" "python" ];
 
     # Clang expects to find LLVMgold in its own prefix
     # Clang expects to find sanitizer libraries in its own prefix
@@ -40,6 +40,9 @@ let
       ln -sv ${llvm}/lib/clang/${version}/lib $out/lib/clang/${version}/
       ln -sv $out/bin/clang $out/bin/cpp
 
+      # Move libclang to 'lib' output
+      moveToOutput "lib/libclang.*" "$lib"
+
       mkdir -p $python/bin $python/share/clang/
       mv $out/bin/{git-clang-format,scan-view} $python/bin
       if [ -e $out/bin/set-xcode-analyzer ]; then
@@ -53,7 +56,6 @@ let
     enableParallelBuilding = true;
 
     passthru = {
-      lib = self; # compatibility with gcc, so that `stdenv.cc.cc.lib` works on both
       isClang = true;
       inherit llvm;
     } // stdenv.lib.optionalAttrs stdenv.isLinux {

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

@@ -22,6 +22,8 @@ let
       inherit clang-tools-extra_src stdenv;
     };
 
+    libclang = self.clang-unwrapped.lib;
+
     clang = if stdenv.cc.isGNU then self.libstdcxxClang else self.libcxxClang;
 
     libstdcxxClang = ccWrapperFun {

pkgs/development/compilers/llvm/4/clang/default.nix

@@ -49,7 +49,7 @@ let
       sed -i '1s,^,find_package(Sphinx REQUIRED)\n,' docs/CMakeLists.txt
     '';
 
-    outputs = [ "out" "python" ]
+    outputs = [ "out" "lib" "python" ]
       ++ stdenv.lib.optional enableManpages "man";
 
     # Clang expects to find LLVMgold in its own prefix
@@ -59,13 +59,15 @@ let
       ln -sv ${llvm}/lib/clang/${release_version}/lib $out/lib/clang/${release_version}/
       ln -sv $out/bin/clang $out/bin/cpp
 
+      # Move libclang to 'lib' output
+      moveToOutput "lib/libclang.*" "$lib"
+
       mkdir -p $python/bin $python/share/clang/
       mv $out/bin/{git-clang-format,scan-view} $python/bin
       if [ -e $out/bin/set-xcode-analyzer ]; then
         mv $out/bin/set-xcode-analyzer $python/bin
       fi
       mv $out/share/clang/*.py $python/share/clang
-
       rm $out/bin/c-index-test
     ''
     + stdenv.lib.optionalString enableManpages ''
@@ -79,7 +81,6 @@ let
     enableParallelBuilding = true;
 
     passthru = {
-      lib = self; # compatibility with gcc, so that `stdenv.cc.cc.lib` works on both
       isClang = true;
       inherit llvm;
     } // stdenv.lib.optionalAttrs stdenv.isLinux {

pkgs/development/compilers/llvm/4/default.nix

@@ -34,6 +34,7 @@ let
     llvm = overrideManOutput llvm;
     clang-unwrapped = overrideManOutput clang-unwrapped;
 
+    libclang = self.clang-unwrapped.lib;
     llvm-manpages = lowPrio self.llvm.man;
     clang-manpages = lowPrio self.clang-unwrapped.man;
 

pkgs/development/compilers/llvm/5/clang/default.nix

@@ -50,7 +50,7 @@ let
       sed -i '1s,^,find_package(Sphinx REQUIRED)\n,' docs/CMakeLists.txt
     '';
 
-    outputs = [ "out" "python" ]
+    outputs = [ "out" "lib" "python" ]
       ++ stdenv.lib.optional enableManpages "man";
 
     # Clang expects to find LLVMgold in its own prefix
@@ -60,13 +60,15 @@ let
       ln -sv ${llvm}/lib/clang/${release_version}/lib $out/lib/clang/${release_version}/
       ln -sv $out/bin/clang $out/bin/cpp
 
+      # Move libclang to 'lib' output
+      moveToOutput "lib/libclang.*" "$lib"
+
       mkdir -p $python/bin $python/share/clang/
       mv $out/bin/{git-clang-format,scan-view} $python/bin
       if [ -e $out/bin/set-xcode-analyzer ]; then
         mv $out/bin/set-xcode-analyzer $python/bin
       fi
       mv $out/share/clang/*.py $python/share/clang
-
       rm $out/bin/c-index-test
     ''
     + stdenv.lib.optionalString enableManpages ''
@@ -80,7 +82,6 @@ let
     enableParallelBuilding = true;
 
     passthru = {
-      lib = self; # compatibility with gcc, so that `stdenv.cc.cc.lib` works on both
       isClang = true;
       inherit llvm;
     } // stdenv.lib.optionalAttrs stdenv.isLinux {

pkgs/development/compilers/llvm/5/default.nix

@@ -34,6 +34,7 @@ let
     llvm = overrideManOutput llvm;
     clang-unwrapped = overrideManOutput clang-unwrapped;
 
+    libclang = self.clang-unwrapped.lib;
     llvm-manpages = lowPrio self.llvm.man;
     clang-manpages = lowPrio self.clang-unwrapped.man;