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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-system-m4" role="wrap">
<?dbhtml filename="m4.html"?>
<sect1info condition="script">
<productname>m4</productname>
<productnumber>&m4-version;</productnumber>
<address>&m4-url;</address>
</sect1info>
<title>M4-&m4-version;</title>
<indexterm zone="ch-system-m4">
<primary sortas="a-M4">M4</primary>
</indexterm>
<sect2 role="package">
<title/>
<para>The M4 package contains a macro processor.</para>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem>
<seg>&m4-ch6-sbu;</seg>
<seg>&m4-ch6-du;</seg>
</seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of M4</title>
<para>Fix an incompatibility between this package and Glibc-&glibc-version;:</para>
<screen><userinput remap="pre">sed -i -e '/gets is a/d' lib/stdio.in.h</userinput></screen>
<para>Prepare M4 for compilation:</para>
<screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>
<para>Compile the package:</para>
<screen><userinput remap="make">make</userinput></screen>
<!--<para>To test the results, issue:</para>-->
<para>To test the results, first fix a test program and then run the test programs:</para>
<screen><userinput remap="test">sed -i -e '41s/ENOENT/& || errno == EINVAL/' tests/test-readlink.h
make check</userinput></screen>
<para>Install the package:</para>
<screen><userinput remap="install">make install</userinput></screen>
</sect2>
<sect2 id="contents-m4" role="content">
<title>Contents of M4</title>
<segmentedlist>
<segtitle>Installed program</segtitle>
<seglistitem>
<seg>m4</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="m4">
<!-- Don't remove the extra space, it prevet a FOP warning. -->
<term><command>m4 </command></term>
<listitem>
<para>copies the given files while expanding the macros that they
contain. These macros are either built-in or user-defined and can
take any number of arguments. Besides performing macro expansion,
<command>m4</command> has built-in functions for including named
files, running Unix commands, performing integer arithmetic,
manipulating text, recursion, etc. The <command>m4</command> program
can be used either as a front-end to a compiler or as a macro processor
in its own right.</para>
<indexterm zone="ch-system-m4 m4">
<primary sortas="b-m4">m4</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>
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