- * libplot, from GNU plotutils
- (http://www.gnu.org/software/plotutils/).
+The following packages are required to enable PSPP's graphing
+features. If you cannot arrange to install them, you must run
+`configure' with --without-cairo.
+
+ * Cairo (http://cairographics.org/), version 1.5 or later.
+
+ * Pango (http://www.pango.org/), version 1.22 or later.