Trying to fix the cmake-qt problems, fixing cmake's FindQt4. Paraview now builds beyond 25%, while

before it didn't. Through this commit I expect the build farm to try to build kde, and see
whether this way it builds without the unusual NIX_CFLAGS_COMPILE set in the qt setup-hook.

svn path=/nixpkgs/trunk/; revision=15838

pkgs/applications/graphics/paraview/default.nix

@@ -7,6 +7,8 @@ stdenv.mkDerivation {
     sha256 = "27544f442e957e9aa60b32c674f2dcd84fffeecc9a40071ef6e305333413187d";
   };
 
+  patches = [ ./include-qobject.patch ];
+
   # I added these flags to get all the rpaths right, which I guess they are
   # taken from the qt4 sources. Not very nice.
   cmakeFlags = "-DCMAKE_SHARED_LINKER_FLAGS=\"-Wl,-rpath,$out/lib/paraview-3.4\"" +

pkgs/applications/graphics/paraview/include-qobject.patch

@@ -0,0 +1,38 @@
+diff --git a/VTK/GUISupport/Qt/CMakeLists.txt b/VTK/GUISupport/Qt/CMakeLists.txt
+index 2c35be7..866f1aa 100644
+--- a/VTK/GUISupport/Qt/CMakeLists.txt
++++ b/VTK/GUISupport/Qt/CMakeLists.txt
+@@ -166,6 +166,7 @@ IF(DESIRED_QT_VERSION MATCHES 4)
+      )
+   ENDIF(QT_QTGUI_LIBRARY)
+   INCLUDE_DIRECTORIES(${QT_QTDESIGNER_INCLUDE_DIR})
++  INCLUDE_DIRECTORIES(${QT_QTCORE_INCLUDE_DIR})
+   QT4_WRAP_CPP ( PluginMocSrcs ${PluginMocHeaders} )
+ ELSE(DESIRED_QT_VERSION MATCHES 4)
+   QT_WRAP_CPP ( QVTKWidgetPlugin PluginMocSrcs ${PluginMocHeaders} )
+diff --git a/VTK/GUISupport/Qt/vtkEventQtSlotConnect.h b/VTK/GUISupport/Qt/vtkEventQtSlotConnect.h
+index 6782b90..ced3a67 100644
+--- a/VTK/GUISupport/Qt/vtkEventQtSlotConnect.h
++++ b/VTK/GUISupport/Qt/vtkEventQtSlotConnect.h
+@@ -43,7 +43,7 @@
+ #include "vtkObject.h"
+ #include "vtkCommand.h"  // for event defines
+ #include "QVTKWin32Header.h"  // for export define
+-#include "qobject.h"          // for version info
++#include <qobject.h>          // for version info
+ 
+ class QObject;
+ class vtkQtConnections;
+diff --git a/VTK/GUISupport/Qt/vtkQtConnection.h b/VTK/GUISupport/Qt/vtkQtConnection.h
+index 923ec2e..b189ddc 100644
+--- a/VTK/GUISupport/Qt/vtkQtConnection.h
++++ b/VTK/GUISupport/Qt/vtkQtConnection.h
+@@ -33,7 +33,7 @@
+ 
+ #include "vtkObject.h"
+ #include "vtkCommand.h"  // for event defines
+-#include "qobject.h"
++#include <qobject.h>
+ 
+ class QObject;
+ class vtkCallbackCommand;

pkgs/development/libraries/qt-4/setup-hook.sh

@@ -1,9 +1,8 @@
 export QTDIR=@out@
 
-if [ -z "$normalQt" ]; then
+if [ -n "$includeAllQtDirs" ]; then
   # This helps for g++, but not for moc. And no qt4 package should expect
-  # having all qt4 header files dirs into -I. But the KDE nix expressions want
-  # this.
+  # having all qt4 header files dirs into -I.
   for d in @out@/include/*; do
       export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I$d"
   done

pkgs/development/tools/build-managers/cmake/default.nix

@@ -18,6 +18,8 @@ stdenv.mkDerivation rec {
     sha256 = "1wpxr5x4aggaqrqzjq3kg4hh09f0vyr1njik1pad01bvwd923pcw";
   };
 
+  patches = [ ./findqt4.patch ];
+
   postUnpack = ''
     dontUseCmakeConfigure=1
     source $setupHook

pkgs/development/tools/build-managers/cmake/findqt4.patch

@@ -0,0 +1,13 @@
+diff --git a/Modules/FindQt4.cmake b/Modules/FindQt4.cmake
+index 3bb77d1..7fdbe4a 100644
+--- a/Modules/FindQt4.cmake
++++ b/Modules/FindQt4.cmake
+@@ -579,6 +579,8 @@ IF (QT4_QMAKE_FOUND)
+   FOREACH(QT_MODULE ${QT_MODULES})
+     STRING(TOUPPER ${QT_MODULE} _upper_qt_module)
+     FIND_PATH(QT_${_upper_qt_module}_INCLUDE_DIR ${QT_MODULE}
++              NO_CMAKE_PATH
++              NO_CMAKE_ENVIRONMENT_PATH
+               PATHS
+               ${QT_HEADERS_DIR}/${QT_MODULE}
+               ${QT_LIBRARY_DIR}/${QT_MODULE}.framework/Headers