+
+
+
+If any part of the above process fails, then it is
+likely that one or more of the necessary prerequisites is missing
+from your system. The following paragraphs contain highly detailed
+information which will help you fix this.
+
+
+Before You Install
+==================
+
+Before you install PSPP, you will need to install certain prerequisite
+packages. You may also want to install other packages that enable
+additional functionality in PSPP. Please note, if you are installing
+any of the libararies mentioned below using pre-prepared binary
+packages provided by popular GNU/Linux vendors, you may need to ensure
+that you install the "development" versions (normally postfixed with
+-dev or -devel).
+
+If you do not know whether you have these installed already, you may
+proceed to "Basic Installation", below. The PSPP configuration
+process will notify you about required and optional packages that are
+not present on your system.
+
+The following packages are required to install PSPP:
+
+ * A C compiler and tool chain. On Unix-like systems, we
+ recommend GCC, but any modern compilation environment should
+ work. On Microsoft Windows, Cygwin (http://www.cygwin.com/) and
+ MinGW (http://www.mingw.org/) are known to work.
+
+ * The GNU Scientific Library (http://www.gnu.org/software/gsl/),
+ version 1.13 or later, including libgslcblas included with GSL.
+
+ * Perl (http://www.perl.org/), version 5.005_03 or later. Perl is
+ required during build but not after installation.
+
+ * iconv, which should be installed as part of a Unix-like system.
+ If you don't have a version already, you can install GNU
+ libiconv (http://www.gnu.org/software/libiconv/).
+
+ * 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/).
+
+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.
+
+ * Pango (http://www.pango.org/), version 1.22 or later.
+
+The following packages are required to enable PSPPIRE, the graphical
+user interface for PSPP. If you cannot install them or do not wish to
+use the GUI, you must run `configure' with --without-gui.
+
+ * pkg-config (http://pkg-config.freedesktop.org/wiki/). Versions
+ 0.18 and 0.19 have a bug that will prevent library detection,
+ but other versions should be fine.
+
+ * GTK+ (http://www.gtk.org/), version 3.14.5 or later.
+
+ * GtkSourceView (http://projects.gnome.org/gtksourceview/)
+ version 3.4.0 or later.
+
+ * GNU Spread Sheet Widget (http://www.gnu.org/software/ssw)
+
+The following packages are optional:
+
+Installing the following packages will allow your PSPP program to read
+Gnumeric files.
+
+ * libxml2 (http://xmlsoft.org/).
+
+Installing the following packages will allow your PSPP program to write
+OpenDocument text (ODT) files:
+
+ * libxml2 (http://xmlsoft.org/).
+
+Other optional packages:
+
+ * 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.