php man page for set_config_file

set_config_file(3alleg4)					  Allegro manual					  set_config_file(3alleg4)

NAME

       set_config_file - Sets the configuration file. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       void set_config_file(const char *filename);

DESCRIPTION

       Sets  the configuration file to be used by all subsequent config functions. (Allegro will not search for this file in other locations as it
       does with allegro.cfg at the time of initialization.)

       All pointers returned by previous calls to get_config_string() and other related functions are invalidated when	you  call  this  function!
       You  can  call  this  function before install_allegro() to change the configuration file, but after set_uformat() if you want to use a text
       encoding format other than the default.

SEE ALSO

       set_config_data(3alleg4),  override_config_file(3alleg4),  push_config_state(3alleg4),  set_uformat(3alleg4),   set_config_string(3alleg4),
       get_config_string(3alleg4), exconfig(3alleg4)

Allegro 							   version 4.4.2					  set_config_file(3alleg4)