if dri_drivers_path == ''
dri_drivers_path = join_paths(get_option('libdir'), 'dri')
endif
+dri_search_path = get_option('dri-search-path')
+if dri_search_path == ''
+ dri_search_path = join_paths(get_option('prefix'), dri_drivers_path)
+endif
with_gles1 = get_option('gles1')
with_gles2 = get_option('gles2')