require "mkmf" dir_config('SFML') libs = [ "GL", "GLU", "sfml-system", "sfml-window", "sfml-graphics", "sfml-audio", ] libs.each {|lib| unless have_library(lib) puts "Unable to find #{lib}.lib!" puts "Please specify the path to them using:" puts "--with-SFML-lib=lib_path" puts "--with-SFML-include=include_path" puts exit end } create_makefile("RubySFML")