Provided by: allegro5-doc_5.2.9.1+dfsg-1.1build4_all bug

NAME

       al_get_errno - Allegro 5 API

SYNOPSIS

              int al_get_errno(void)
              GETTER(allegro_errno, 0)

DESCRIPTION

       Some  Allegro functions will set an error number as well as returning an error code.  Call
       this function to retrieve the last error number set for the calling thread.