^CMake Warning \(author\) at GeneratedByDependency\.cmake:[0-9]+ \(add_library\):
  Target "generated_headers" installs file

    [^
]*/GeneratedByDependency-build/generated\.h

  which is generated but is not the unique output of a build target, so
  "install_prep/" targets cannot build it with this generator\.  They build
  target "generated_headers" instead, which must depend on the target that
  produces the file \(for example via add_dependencies\)\.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)
This warning is for project developers\.  Use -Wno-author to suppress it\.$
