cmake HAVE_NO_IGNORED_QUALIFIERS examples

mysql/mysql-router ext/protobuf/CMakeLists.txt :45 

CHECK_CXX_COMPILER_FLAG("-Wno-ignored-qualifiers" HAVE_NO_IGNORED_QUALIFIERS)

mysql/mysql-router src/x_protocol/CMakeLists.txt :44 

check_cxx_compiler_flag("-Wignored-qualifiers" HAVE_NO_IGNORED_QUALIFIERS)