-lpthread (compile with gcc)

3Scan is fast detector for open HTTP/CONNECT/SOCKS4/SOCKS5/FTP/TELNET proxyTested to compile under both Windows and Unix (FreeBSD, -lpthread required). cand incerc sa-l compilez (gcc 3scan.c -o _this) : /var/tmp//ccryENOb.o: In function `main':/var/tmp//ccryENOb.o(.text+0x1e5f): undefined reference to `pthread_create'/var/tmp//ccryENOb.o(.text+0x1f13): undefined reference to `pthread_create'/var/tmp//ccryENOb.o(.text+0x1f39): undefined reference to `pthread_create'/var/tmp//ccryENOb.o(.text+0x1f5f): undefined reference to `pthread_create'/var/tmp//ccryENOb.o(.text+0x1f85): undefined reference to `pthread_create'/var/tmp//ccryENOb.o(.text+0x1fab): more undefined references to `pthread_create' follow