--- a/ext/mysql/php_mysql.c	2020-05-14 11:38:45.532581490 +0000
+++ b/ext/mysql/php_mysql.c	2020-05-14 11:44:46.168742339 +0000
@@ -68,6 +68,10 @@
 #include "php_ini.h"
 #include "php_mysql_structs.h"
 
+#if defined MARIADB_PORT && !defined MYSQL_PORT
+#define MYSQL_PORT MARIADB_PORT
+#endif
+
 /* True globals, no need for thread safety */
 static int le_result, le_link, le_plink;