--- tzdb-2019cold/private.h	2018-07-16 13:16:52.000000000 -0400
+++ tzdb-2019cnew/private.h	2019-11-23 04:00:17.903330000 -0500
@@ -133,6 +133,7 @@
 */
 
 /* Avoid clashes with NetBSD by renaming NetBSD's declarations.  */
+/* Also avoid clash with timezone(3) function on FreeBSD */
 #define localtime_rz sys_localtime_rz
 #define mktime_z sys_mktime_z
 #define posix2time_z sys_posix2time_z
@@ -140,6 +141,7 @@
 #define timezone_t sys_timezone_t
 #define tzalloc sys_tzalloc
 #define tzfree sys_tzfree
+#define timezone sys_timezone
 #include <time.h>
 #undef localtime_rz
 #undef mktime_z
@@ -148,6 +150,7 @@
 #undef timezone_t
 #undef tzalloc
 #undef tzfree
+#undef timezone
 
 #include <sys/types.h>	/* for time_t */
 #include <string.h>