Have you properly installed Allegro by running the makefile and such? Also, if you have are you linking to Allegro properly inside your compiler (i.e. #include <allegro.h>)? For more help you can go to allegro.cc
Have you properly installed Allegro by running the makefile and such? Also, if you have are you linking to Allegro properly inside your compiler (i.e. #include <allegro.h>)? For more help you can go to allegro.cc