#if defined(linux) || defined(IRIX) || defined(SOLARIS) || defined(OSF1) || defined(__FreeBSD__) || defined(__APPLE__) || defined(__NetBSD__) || defined(__sun) || defined(sun) || defined(__OpenBSD__) # include "unix.h" # ifdef __APPLE__ # define panic dt_panic # endif #elif defined(WINDOWS) # include "9windows.h" # define main mymain #else # error "Define an OS" #endif #ifdef IRIX typedef int socklen_t; #endif