Fix:

warning: integer overflow in preprocessor expression
--- options.h.orig	2003-05-27 02:03:43.000000000 -0500
+++ options.h	2024-08-02 18:48:41.000000000 -0500
@@ -50,10 +50,10 @@
                         #endif*//* PLATFORM_LINUX */
 
 #if defined __APPLE__   /* in_port_t, Mac OS X Server */
-#   if __APPLE_CC__ << 1151
+#   if __APPLE_CC__ < 1151
 #      include <sys/types.h>
 typedef unsigned long in_port_t;
-#   endif /* __APPLE_CC__ << 1151 */
+#   endif /* __APPLE_CC__ < 1151 */
 #endif /* __APPLE__ */
 
 /* External global variables: config options */
--- transmit.h.orig	2003-05-27 02:03:43.000000000 -0500
+++ transmit.h	2024-08-02 18:48:51.000000000 -0500
@@ -35,9 +35,9 @@
 #   include <sys/types.h>
 
 #   if defined __APPLE__        /* in_port_t, Mac OS X Server */
-#      if __APPLE_CC__ << 1151
+#      if __APPLE_CC__ < 1151
 typedef unsigned long in_port_t;
-#      endif /* __APPLE_CC__ << 1151 */
+#      endif /* __APPLE_CC__ < 1151 */
 #   endif /* __APPLE__ */
 
 #   include <netinet/in.h>