cmake HAVE_SIGEV_THREAD_ID examples

google/mysql-protobuf configure.cmake :503 

CHECK_SYMBOL_EXISTS(SIGEV_THREAD_ID "signal.h;time.h" HAVE_SIGEV_THREAD_ID)

mongodb/mongo-bi-connector-odbc-driver configure.cmake :535 

CHECK_SYMBOL_EXISTS(SIGEV_THREAD_ID "signal.h;time.h" HAVE_SIGEV_THREAD_ID)