Sorry for the noise, I forgot to attach the patch.
WBR, Cyril Roelandt.
--- mmpong-0.9.1.orig/client_gl/client.cpp 2009-01-12 23:19:44.000000000 +0100 +++ mmpong-0.9.1/client_gl/client.cpp 2012-05-14 03:53:38.000000000 +0200 @@ -34,6 +34,7 @@ #include <errno.h> #include <SDL_mixer.h> #include <iostream> +#include <unistd.h> #include "clientstate.h" #include "config.h" --- mmpong-0.9.1.orig/client_gl/netgame.cpp 2009-01-12 22:28:28.000000000 +0100 +++ mmpong-0.9.1/client_gl/netgame.cpp 2012-05-14 03:54:40.000000000 +0200 @@ -30,6 +30,7 @@ # include <netinet/tcp.h> # include <netinet/ip.h> # include <fcntl.h> +# include <unistd.h> #endif #include <stdexcept>