+
+Installing the following packages will allow your PSPP binary to read
+Gnumeric files.
+
+ * zlib (http://www.zlib.net/).
+
+ * libxml2 (http://xmlsoft.org/).
+
+Installing the following packages will allow your PSPP binary to write
+OpenDocument text (ODT) files:
+
+ * libxml2 (http://xmlsoft.org/).
+
+The following packages are optional.
+
+ * libncurses (http://www.gnu.org/software/ncurses/). Without it,
+ PSPP will assume it is running in an 80x25 terminal.
+
+ * libreadline and libhistory
+ (http://tiswww.case.edu/php/chet/readline/rltop.html). Without
+ them, interactive command editing and history features in the
+ text-based user interface will be disabled.
+
+ * Texinfo (http://www.gnu.org/software/texinfo/), version 4.7 or
+ later. Installing Texinfo will allow you to build PSPP
+ documentation in PostScript or PDF format.
+
+ * libpq, from Postgresql (http://postgresql.org). This enables PSPP
+ to read Postgresql databases. The tests for the Postgresql
+ interface, but not the Postgresql interface itself, requires the
+ Postgresql server to be installed.
+
+ * The Text::Diff module for Perl (http://cpan.org). This enables
+ PSPP to test the Perl module more thoroughly. It is not needed
+ to build or use the Perl module.