-The following package is required to enable PSPP's graphing features.
-If you cannot arrange to install it, you must run `configure' with
---without-libplot.
+ * libintl, from GNU gettext (http://www.gnu.org/software/gettext).
+ GNU libc includes an integrated libintl, so there is no need to
+ separately install libintl on a GNU/Linux system.
+
+ * zlib (http://www.zlib.net/).
+
+ * libxml2 (http://xmlsoft.org/).
+
+ * metainfo.its, provided by the appstream package. This is required
+ by xgettext version lower then 0.20 to extract the translation
+ strings from the org.fsf.pspp.metainfo.xml.in file. This is only
+ required for building. It is not a runtime requirement.
+
+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 (in which case you will get no graphing
+capability).
+
+ * Cairo (http://cairographics.org/), version 1.12 or later.