message(" is gnu ..............: ${CMAKE_COMPILER_IS_GNUCC}")
message(" Compiler: C++ ...............: ${CMAKE_CXX_COMPILER} (id: ${CMAKE_CXX_COMPILER_ID})")
message(" version .............: ${CMAKE_CXX_COMPILER_VERSION}")
message(" is gnu ..............: ${CMAKE_COMPILER_IS_GNUCC}")
message(" Compiler: C++ ...............: ${CMAKE_CXX_COMPILER} (id: ${CMAKE_CXX_COMPILER_ID})")
message(" version .............: ${CMAKE_CXX_COMPILER_VERSION}")