--- Time-Format_XS-1.03/format.c~	2009-06-18 08:03:00.000000000 +0300
+++ Time-Format_XS-1.03/format.c	2019-02-25 14:00:53.702264727 +0200
@@ -73,6 +73,9 @@
 char *ENGLISH_DAY_NAME[7] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
 #endif
 
+int month_context(state self, size_t patlen);
+int minute_context(state self, size_t patlen);
+
 /* Croak.  Calls Time::Format_XS::_croak, which calls Carp::croak */
 void c_croak (const char *str)
 {