The check_<lang>_source_runs functions for C and C++ operate with the same general principles as check_<lang>_source_compiles, but add an extra step where the produced executable is actually run. As for check_<lang>_source_compiles, the execution of check_<lang>_source_runs can be directed by the following variables:
- CMAKE_REQUIRED_FLAGS to set the compiler flags
- CMAKE_REQUIRED_DEFINITIONS to set preprocessor macros
- CMAKE_REQUIRED_INCLUDES to set the list of include directories
- CMAKE_REQUIRED_LIBRARIES to set the list of libraries to link into the executable
Since we used the imported target as produced by pkg_search_module, it was only necessary to set CMAKE_REQUIRES_LIBRARIES to PkgConfig::UUID, to also get the include directories ...
