^CMake Warning \(dev\) at .*/Modules/GNUInstallDirs.cmake:[0-9]+ \(message\):
  Unable to determine default CMAKE_INSTALL_LIBDIR directory because no
  target architecture is known.  Please enable at least one language before
  including GNUInstallDirs.
Call Stack \(most recent call first\):
  NoSystem.cmake:[0-9]+ \(include\)
  CMakeLists.txt:[0-9]+ \(include\)
This warning is for project developers.  Use -Wno-dev to suppress it.$