Linux系统下的多线程遵循POSIX线程接口，称为pthread。编写Linux下的多线程程序，需要使用头文件pthread.h，连接时需要使用库libpthread.a。

This release 0.7 (late beta) of LinuxThreads, a BiCapitalized implementation of the Posix 1003.1c \"pthread\" interface for Linux. LinuxThreads provides kernel-level threads: each thread is a separate Unix process, sharing its address space with the