Removed not needed comment (to keep aligned with the rest of the code)

  pthread_mutex_trylock returns 1 on success, not 0 like

  pthread_mutex_lock

*/

/* We defined pthread_mutex_trylock as a macro in my_pthread.h, we have

   to undef it here to prevent infinite recursion! */

#undef pthread_mutex_trylock

int my_pthread_mutex_trylock(pthread_mutex_t *mutex)

{

  int error=pthread_mutex_trylock(mutex);