<?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-mpfr" role="wrap">
  <?dbhtml filename="mpfr.html"?>

  <sect1info condition="script">
    <productname>mpfr</productname>
    <productnumber>&mpfr-version;</productnumber>
    <address>&mpfr-url;</address>
  </sect1info>

  <title>MPFR-&mpfr-version;</title>

  <indexterm zone="ch-system-mpfr">
    <primary sortas="a-MPFR">MPFR</primary>
  </indexterm>

  <sect2 role="package">
    <title/>

    <para>The MPFR package contains functions for multiple precision
    math.</para>

    <segmentedlist>
      <segtitle>&buildtime;</segtitle>
      <segtitle>&diskspace;</segtitle>

      <seglistitem>
        <seg>&mpfr-fin-sbu;</seg>
        <seg>&mpfr-fin-du;</seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

  <sect2 role="installation">
    <title>Installation of MPFR</title>

    <!-- https://sympa.inria.fr/sympa/arc/mpfr/2023-01/msg00002.html
         https://gitlab.inria.fr/mpfr/mpfr/-/commit/5172494c

         Note that it's a different issue from Glibc #30068 we've fixed in
         chapter08/glibc.xml with a sed.  Normally we just document the
         test failure, but in this case the particular subtest also serves
         as an additional guard against Glibc #30068.  So we apply the
         upstream fix here.   -->
    <para>Fix a test case based on a bug of old Glibc releases:</para>

<screen><userinput remap="pre">sed -e 's/+01,234,567/+1,234,567 /' \
    -e 's/13.10Pd/13Pd/'            \
    -i tests/tsprintf.c</userinput></screen>

    <para>Prepare MPFR for compilation:</para>

<screen><userinput remap="configure">./configure --prefix=/usr        \
            --disable-static     \
            --enable-thread-safe \
            --docdir=/usr/share/doc/mpfr-&mpfr-version;</userinput></screen>

    <para>Compile the package and generate the HTML documentation:</para>

<screen><userinput remap="make">make
make html</userinput></screen>

    <important>
      <para>The test suite for MPFR in this section is considered critical.
      Do not skip it under any circumstances.</para>
    </important>

    <para>Test the results and ensure that all 197 tests passed:</para>

<screen><userinput remap="test">make check</userinput></screen>

    <para>Install the package and its documentation:</para>

<screen><userinput remap="install">make install
make install-html</userinput></screen>

  </sect2>


  <sect2 id="contents-mpfr" role="content">
    <title>Contents of MPFR</title>

    <segmentedlist>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed directory</segtitle>

      <seglistitem>
        <seg>libmpfr.so</seg>
        <seg>/usr/share/doc/mpfr-&mpfr-version;</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="libmpfr">
        <term><filename class="libraryfile">libmpfr</filename></term>
        <listitem>
          <para>Contains multiple-precision math functions</para>
          <indexterm zone="ch-system-mpfr libmpfr">
            <primary sortas="c-libmpfr">libmpfr</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>