man ALLEGRO_SUB_VERSION () - Defined to the middle version of Allegro.
NAME
ALLEGRO_SUB_VERSION - Defined to the middle version of Allegro.
SYNOPSIS
#include <allegro.h>
#define ALLEGRO_SUB_VERSION
DESCRIPTION
Defined to the middle version of Allegro. From a version number like 4.1.16, this would be defined to the integer 1.