+ if "arch!=win32"
+ {
+ require "xlib";
+ };
+ if "arch=win32"
+ {
+ build_info
+ {
+ library "gdi32";
+ };
+ };
+
+ feature "devil" "Include DevIL support for loading image files";
+ if "with_devil"
+ {
+ require "devil";
+ };
+
+ feature "libpng" "Include libpng support for loading PNG files"
+ {
+ default "yes";
+ };
+ if "with_libpng"
+ {
+ require "libpng";
+ };
+
+ feature "opengl" "Include support for OpenGL contexts"
+ {
+ default "yes";
+ };
+ if "with_opengl"
+ {
+ require "opengl";
+ };