configure: error: Library requirements (gdk-pixbuf-2.0 >= 2.0.3 gtk+-2.0 >= 2.0.3 libgnomeui-2.0 >= 2.0.0 gnome-vfs-module-2.0 >= 1.9.16) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.