Tests/RunCMake/target_sources/FileSetDirect-stderr.txt

CMake Error at FileSetDirect\.cmake:3 \(add_library\):
  Cannot find source file:

    FILE_SET

  Tried extensions ([^
]+
)+
  Hint: the FILE_SET keyword may only appear after a visibility specifier or
  another FILE_SET within the target_sources\(\) command\.
Call Stack \(most recent call first\):
  CMakeLists\.txt:3 \(include\)