kicad/CMakeModules/CheckFindPackageResult.cmake

macro(check_find_package_result _VAR _PKGNAME)
    if(${_VAR})
        message(STATUS "Check for installed ${_PKGNAME} -- found")
    else(${_VAR})
        message(STATUS "Check for installed ${_PKGNAME} -- not found")
        message(FATAL_ERROR "${_PKGNAME} was not found - it is required to build Kicad")
    endif(${_VAR})
endmacro(check_find_package_result)