Fix the socklen_t typedef in libdnet-stripped. It was

typedef socklen_t int;

Michael Pattrick pointed out that it should be

typedef int socket_t;

libdnet-stripped/include/config.h.in

@@ -301,5 +301,5 @@ char	*strsep(char **, const char *);
 #endif
 
 #ifndef HAVE_SOCKLEN_T
-typedef socklen_t int
+typedef int socklen_t
 #endif