``` redis_dbase.c: In function 'db_redis_scan_query_keys': redis_dbase.c:1086:5: error: 'for' loop initial declarations are only allowed in C99 mode for (redis_key_t *set_key = set_keys; set_key; set_key = set_key->next) { ^ redis_dbase.c:1086:5: note: use option -std=c99 or -std=gnu99 to compile your code make[2]: *** [redis_dbase.o] Error 1 make[1]: *** [modules] Error 1 make[1]: Leaving directory `/root/rpmbuild/BUILD/kamailio-5.4.0-dev2/src' make: *** [every-module] Error 2 ``` Looks as need similar fix like daa86b204d3030e2abb2f2459aa348998b982ae2