VMS Help POSIX Threads, PTHREAD routines, pthread_attr_setname_np, C Binding  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    #include <pthread.h>

    int
    pthread_attr_setname_np (
             pthread_attr_t   *attr,
             const char   *name,
             void   *mbz);