Comment 15 for bug 1365432

Hi,
changing the definition of LLVM_CMAKE_DIR is not sufficient to resolve this,
because the LLVM targets in LLVM-Exports.cmake are not set up properly, leading to this:

(result of a CMakeLists.txt containing 'find_package(LLVM REQUIRED)'):

CMake Error at /usr/share/llvm-3.5/cmake/LLVMExports.cmake:6 (set_property):
  set_property could not find TARGET LLVMSupport. Perhaps it has not yet
  been created.
Call Stack (most recent call first):
  /usr/share/llvm-3.5/cmake/LLVMConfig.cmake:50 (include)
  cmake/modules/SearchInstalledSoftware.cmake:654 (find_package)
  CMakeLists.txt:46 (include)

CMake Error at /usr/share/llvm-3.5/cmake/LLVMExports.cmake:7 (set_property):
  set_property could not find TARGET LLVMAArch64Utils. Perhaps it has not
  yet been created.
Call Stack (most recent call first):
  /usr/share/llvm-3.5/cmake/LLVMConfig.cmake:50 (include)
  cmake/modules/SearchInstalledSoftware.cmake:654 (find_package)
  CMakeLists.txt:46 (include)

This is because the 'Exports' file is full of commands to set properties on the targets,
but the targets are never defined (imported) anywhere.