Man pages matching name allegro_for_each_fs_entry_result in section 3alleg5:

ALLEGRO_FOR_EACH_FS_ENTRY_RESULT.3alleg5.en	debian 10 / allegro5-doc
ALLEGRO_FOR_EACH_FS_ENTRY_RESULT.3alleg5.en	debian 11 / allegro5-doc
ALLEGRO_FOR_EACH_FS_ENTRY_RESULT.3alleg5.en	debian 12 / allegro5-doc