Man pages matching name allegro_touch_input_max_touch_count in section 3alleg5:

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