***Partial*** Solaris compile fix

(you don't expect me to actual try to compile VLC on puma.cti.ecp.fr, do you?)

src/network/rootwrap.c

@@ -57,6 +57,10 @@
 # undef AF_INET6
 #endif
 
+#ifndef AF_LOCAL
+# define AF_LOCAL AF_UNIX
+#endif
+
 /*#ifndef HAVE_CLEARENV
 extern char **environ;