CMake Error at LINK_ONLY-not-linking\.cmake:1 \(add_custom_target\):
  Error evaluating generator expression:

    \$<LINK_ONLY:something>

  \$<LINK_ONLY:\.\.\.> may only be used for linking
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)
