Using man pthread_create:
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On a Sun:
pthread_create(3T) Threads Library pthread_create(3T)
NAME
pthread_create - thread creation
SYNOPSIS
POSIX
#include <pthread.h>
int pthread_create(pthread_t *new_thread_ID,
const pthread_attr_t *attr,
void * (*start_func)(void *), void *arg);
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On an RS6000:
Threads Library (libpthreads.a)
Syntax
#include <pthread.h>
int pthread_create (thread, attr, start_routine, arg)
pthread_t *thread;
const pthread_attr_t *attr;
void *(*start_routine) (void *);
void *arg;