CMake install fails

[cbix]

As of v0.0.17, the install step fails with

CMake Error at build-lpd8editor/src/cmake_install.cmake:46 (file):
  file INSTALL cannot find
  "/home/florian/build/archlinux-proaudio/packages/lpd8editor/src/lpd8editor-0.0.17/src/_qm_files":
  No such file or directory.
Call Stack (most recent call first):
  build-lpd8editor/cmake_install.cmake:48 (include)

This was observed on Arch Linux when trying to update our package to the latest version.