debian man page for check_cpu

check_cpu(3alleg4)						  Allegro manual						check_cpu(3alleg4)

NAME
       check_cpu - Detects the CPU type. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void check_cpu();

DESCRIPTION
       Detects	the  CPU type, setting the following global variables. You don't normally need to call this, because allegro_init() will do it for
       you.

SEE ALSO
       cpu_vendor(3alleg4), cpu_family(3alleg4), cpu_model(3alleg4), cpu_capabilities(3alleg4), allegro_init(3alleg4)

Allegro 							   version 4.4.2						check_cpu(3alleg4)