This tool ports from Qt 4 to Qt 5. To build it: git clone http://llvm.org/git/llvm.git cd llvm/tools svn co http://llvm.org/svn/llvm-project/cfe/trunk clang cd clang/tools git clone https://github.com/KDAB/Qt4to5 qt4to5 echo "add_subdirectory(qt4to5)" >> CMakeLists.txt cd ../../../ # Back down to the llvm checkout mkdir build && cd build cmake .. -DCLANG_BUILD_EXAMPLES=True To run it, edit and run the portqt4to5.py script.