I find myself writing this like this in my CMakeLists.txt file: ``` find_package(Xyzzy REQUIRED) if (NOT ${XYZZY_FOUND}) message(FATAL_ERROR "A REQUIRED package was not found") endif() ``` It's confusing that this should be necessary, since I'm passing the REQUIRED flag to find_package(). I'd expect find_package() or the FindXxx module to raise the error for me. This is the pattern I use for FindXxx modules: ``` include(FindPackageHandleStandardArgs) find_path(XYZZY_INCLUDE_DIR NAMES xyzzy.h) find_library(XYZZY_LIBRARY NAMES libxyzzy) find_package_handle_standard_args( XYZZY REQUIRED_VARS XYZZY_INCLUDE_DIR XYZZY_LIBRARY) if(XYZZY_FOUND) add_library(Xyzzy::Xyzzy SHARED IMPORTED) set_target_properties(Xyzzy:Xyzzy PROPERTIES IMPORTED_LOCATION ${XYZZY_LIBRARY} INTERFACE_INCLUDE_DIRECTORIES ${XYZZY_INCLUDE_DIR} INTERFACE_LIBRARIES ${XYZZY_LIBRARY} ) endif() ```