egcs thread question.

[Fenglou Mao]

Dear all,
   Did egcs have a built-in thread library?
   If not, where can I find one?
   What is the different between "/usr/include/pthread.h" and 
"/usr/include/pthread/mit/pthread.h"?

Sincerely Yours,

FengLou Mao
*******************************
ADD:Mr. FengLou Mao
    Peking University
    BeiJing
    P.R.China
Tel:86-10-62751490
Fax:86-10-62751725