swim: fix build on FreeBSD

Close #4050

src/lib/swim/swim_io.h

@@ -37,6 +37,7 @@
 #include "tarantool_ev.h"
 #include <stdbool.h>
 #include <arpa/inet.h>
+#include <netinet/in.h>
 
 /**
  * SWIM protocol transport level.

src/lib/swim/swim_proto.c

@@ -33,6 +33,7 @@
 #include "say.h"
 #include "version.h"
 #include "diag.h"
+#include <sys/socket.h> /* AF_INET for FreeBSD. */
 
 const char *swim_member_status_strs[] = {
 	"alive",

src/lib/swim/swim_proto.h

@@ -33,6 +33,8 @@
 #include "trivia/util.h"
 #include "uuid/tt_uuid.h"
 #include <arpa/inet.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
 #include <stdbool.h>
 
 /**

src/lib/swim/swim_transport.h

@@ -31,6 +31,7 @@
  * SUCH DAMAGE.
  */
 #include "trivia/util.h"
+#include <netinet/in.h>
 #include <arpa/inet.h>
 
 /** Transport implementation. */

test/unit/swim_test_transport.c

@@ -33,6 +33,7 @@
 #include "swim/swim_io.h"
 #include "fiber.h"
 #include <errno.h>
+#include <sys/socket.h>
 
 enum {
 	/**