Protect some more headers for inclusion

common/fko_util.c

@@ -35,10 +35,16 @@
 #ifndef WIN32
   /* for inet_aton() IP validation
   */
+# if HAVE_SYS_SOCKET_H
 #  include <sys/socket.h>
+#endif
+# if HAVE_NETINET_IN_H
 #  include <netinet/in.h>
+# endif
+# if HAVE_ARPA_INET_H
 #  include <arpa/inet.h>
 # endif
+#endif
 
 /* Check for a FKO error returned by a function an return the error code */
 #define RETURN_ON_FKO_ERROR(e, f)   do { if (((e)=(f)) != FKO_SUCCESS) { return (e); } } while(0);