add PTHREADS to pass POSIX system of openssl
add PTHREADS to pass POSIX system of openssl

luvit/luvi,virgo-agent-toolkit/luvi,virgo-agent-toolkit/luvi,joerg-krause/luvi,joerg-krause/luvi,zhaozg/luvi,luvit/luvi,zhaozg/luvi