Make the typecast trick pthread_t -> os_thread_id_t safer, but a full fix needs usage of appropriate Posix functions


innobase/configure.in:
  Make the typecast trick pthread_t -> os_thread_id_t safer, but a full fix needs usage of appropriate Posix functions
innobase/os/os0thread.c:
  Make the typecast trick pthread_t -> os_thread_id_t safer, but a full fix needs usage of appropriate Posix functions