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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-tools-expect" role="wrap">
<?dbhtml filename="expect.html"?>
<sect1info condition="script">
<productname>expect</productname>
<productnumber>&expect-version;</productnumber>
<address>&expect-url;</address>
</sect1info>
<title>Expect-&expect-version;</title>
<indexterm zone="ch-tools-expect">
<primary sortas="a-Expect">Expect</primary>
</indexterm>
<sect2 role="package">
<title/>
<para>The Expect package contains a program for carrying out scripted
dialogues with other interactive programs.</para>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem>
<seg>&expect-ch5-sbu;</seg>
<seg>&expect-ch5-du;</seg>
</seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of Expect</title>
<para>First, apply a patch to remove the dependency on Tk, that may be
present on the host but will not be available once we enter the
<command>chroot</command> environment:</para>
<screen><userinput remap="pre">patch -Np1 -i ../&expect-tk-patch;</userinput></screen>
<para>Next, force Expect's configure script to use <filename>/bin/stty</filename>
instead of a <filename>/usr/local/bin/stty</filename> it may find on the host system.
This will ensure that our testsuite tools remain sane for the final builds of our
toolchain:</para>
<screen><userinput remap="pre">cp -v configure{,.orig}
sed 's:/usr/local/bin:/bin:' configure.orig > configure</userinput></screen>
<para>Now prepare Expect for compilation:</para>
<screen><userinput remap="configure">./configure --prefix=/tools --with-tcl=/tools/lib \
--with-tclinclude=/tools/include --with-tk=no</userinput></screen>
<variablelist>
<title>The meaning of the configure options:</title>
<varlistentry>
<term><parameter>--with-tcl=/tools/lib</parameter></term>
<listitem>
<para>This ensures that the configure script finds the Tcl
installation in the temporary tools location instead of possibly
locating an existing one on the host system.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--with-tclinclude=/tools/include</parameter></term>
<listitem>
<para>This explicitly tells Expect where to find Tcl's internal
headers. Using this option avoids conditions where
<command>configure</command> fails because it cannot automatically
discover the location of Tcl's headers.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--with-tk=no</parameter></term>
<listitem>
<para>This tells the configure script not to search for Tk (the
Tcl GUI component) or the X Window System libraries, both of which
may reside on the host system but will not exist in the temporary
environment.</para>
</listitem>
</varlistentry>
</variablelist>
<para>Build the package:</para>
<screen><userinput remap="make">make</userinput></screen>
<para>Compilation is now complete. As discussed earlier, running the test
suite is not mandatory for the temporary tools here in this chapter. To run
the Expect test suite anyway, issue the following command:</para>
<screen><userinput remap="test">make test</userinput></screen>
<para>Note that the Expect test suite is known to experience failures under
certain host conditions that are not within our control. Therefore,
test suite failures here are not surprising and are not considered
critical.</para>
<para>Install the package:</para>
<screen><userinput remap="install">make SCRIPTS="" install</userinput></screen>
<variablelist>
<title>The meaning of the make parameter:</title>
<varlistentry>
<term><parameter>SCRIPTS=""</parameter></term>
<listitem>
<para>This prevents installation of the supplementary Expect
scripts, which are not needed.</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>
<sect2 id="contents-expect" role="content">
<title>Contents of Expect</title>
<segmentedlist>
<segtitle>Installed program</segtitle>
<segtitle>Installed library</segtitle>
<seglistitem>
<seg>expect</seg>
<seg>libexpect-&expect-lib-version;.a</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="expect">
<term><command>expect</command></term>
<listitem>
<para>Communicates with other interactive programs according
to a script</para>
<indexterm zone="ch-tools-expect expect">
<primary sortas="b-expect">expect</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="libexpect">
<term><filename class="libraryfile">libexpect-&expect-lib-version;.a</filename></term>
<listitem>
<para>Contains functions that allow Expect to be used as a Tcl
extension or to be used directly from C or C++ (without Tcl)</para>
<indexterm zone="ch-tools-expect libexpect">
<primary sortas="c-libexpect-&expect-lib-version;">libexpect-&expect-lib-version;</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>
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