Some struct x1f4_c1record_type
record must be declared.
struct x1f4_c1record_type c1record;
The error collector must be linked into the parsing context.
struct x1f4_c1_type attributes; c1.bcollect_set.eerecord_data = &c1record;
Finally, the program parser must be indicated that it must record errors.
status = x1f4_init_program(..., ..., X1f4_C1_BCOLLECT | ..., ...);