chapter06/gmp.xml

   1 <?xml version="1.0" encoding="ISO-8859-1"?>
   2 <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
   4   <!ENTITY % general-entities SYSTEM "../general.ent">
   5   %general-entities;
   6 ]>
   7
   8 <sect1 id="ch-system-gmp" role="wrap">
   9   <?dbhtml filename="gmp.html"?>
  10
  11   <sect1info condition="script">
  12     <productname>gmp</productname>
  13     <productnumber>&gmp-version;</productnumber>
  14     <address>&gmp-url;</address>
  15   </sect1info>
  16
  17   <title>GMP-&gmp-version;</title>
  18
  19   <indexterm zone="ch-system-gmp">
  20     <primary sortas="a-GMP">GMP</primary>
  21   </indexterm>
  22
  23   <sect2 role="package">
  24     <title/>
  25
  26     <para>The GMP package contains math libraries. These have useful functions
  27     for arbitrary precision arithmetic.</para>
  28
  29     <segmentedlist>
  30       <segtitle>&buildtime;</segtitle>
  31       <segtitle>&diskspace;</segtitle>
  32
  33       <seglistitem>
  34         <seg>&gmp-ch6-sbu;</seg>
  35         <seg>&gmp-ch6-du;</seg>
  36       </seglistitem>
  37     </segmentedlist>
  38
  39   </sect2>
  40
  41   <sect2 role="installation">
  42     <title>Installation of GMP</title>
  43
  44     <note>
  45       <para>If you are building for 32-bit x86, but you have a CPU which is
  46       capable of running 64-bit code <emphasis>and</emphasis> you have specified
  47       <envar>CFLAGS</envar> in the environment, the configure script will
  48       attempt to configure for 64-bits and fail.
  49       Avoid this by invoking the configure command below with
  50 <screen role="nodump"><userinput><parameter>ABI=32</parameter> ./configure ...</userinput></screen></para>
  51     </note>
  52
  53     <note>
  54       <para>The default settings of GMP produce libraries optimized for
  55       the host processor.  If libraries suitable for processors less
  56       capable than the host's CPU are desired, generic libraries can be
  57       created by running the following:
  58
  59 <screen role="nodump"><userinput>cp -v configfsf.guess config.guess
  60 cp -v configfsf.sub   config.sub</userinput></screen></para>
  61     </note>
  62
  63     <para>Prepare GMP for compilation:</para>
  64
  65 <screen><userinput remap="configure">./configure --prefix=/usr    \
  66             --enable-cxx     \
  67             --disable-static \
  68             --docdir=/usr/share/doc/gmp-&gmp-version;</userinput></screen>
  69
  70     <variablelist>
  71       <title>The meaning of the new configure options:</title>
  72
  73       <varlistentry>
  74         <term><parameter>--enable-cxx</parameter></term>
  75         <listitem>
  76           <para>This parameter enables C++ support</para>
  77         </listitem>
  78       </varlistentry>
  79
  80       <varlistentry>
  81         <term><parameter>--docdir=/usr/share/doc/gmp-&gmp-version;</parameter></term>
  82         <listitem>
  83           <para>This variable specifies the correct place for the
  84           documentation.</para>
  85         </listitem>
  86       </varlistentry>
  87
  88     </variablelist>
  89
  90     <para>Compile the package and generate the HTML documentation:</para>
  91
  92 <screen><userinput remap="make">make
  93 make html</userinput></screen>
  94
  95     <important>
  96       <para>The test suite for GMP in this section is considered critical.
  97       Do not skip it under any circumstances.</para>
  98     </important>
  99
 100     <para>Test the results:</para>
 101
 102 <screen><userinput remap="test">make check 2>&amp;1 | tee gmp-check-log</userinput></screen>
 103
 104     <caution><para>The code in gmp is highly optimized for the processor where
 105     it is built. Occasionally, the code that detects the processor misidentifies
 106     the system capabilities and there will be errors in the tests or other
 107     applications using the gmp libraries with the message "Illegal
 108     instruction".  In this case, gmp should be reconfigured with the option
 109     --build=x86_64-unknown-linux-gnu and rebuilt.</para></caution>
 110
 111     <para>Ensure that all 190 tests in the test suite passed.
 112     Check the results by issuing the following command:</para>
 113
 114 <screen><userinput remap="test">awk '/# PASS:/{total+=$3} ; END{print total}' gmp-check-log</userinput></screen>
 115
 116     <para>Install the package and its documentation:</para>
 117
 118 <screen><userinput remap="install">make install
 119 make install-html</userinput></screen>
 120
 121   </sect2>
 122
 123   <sect2 id="contents-gmp" role="content">
 124     <title>Contents of GMP</title>
 125
 126     <segmentedlist>
 127       <segtitle>Installed Libraries</segtitle>
 128       <segtitle>Installed directory</segtitle>
 129
 130       <seglistitem>
 131         <seg>libgmp.so and libgmpxx.so</seg>
 132         <seg>/usr/share/doc/gmp-&gmp-version;</seg>
 133       </seglistitem>
 134     </segmentedlist>
 135
 136     <variablelist>
 137       <bridgehead renderas="sect3">Short Descriptions</bridgehead>
 138       <?dbfo list-presentation="list"?>
 139       <?dbhtml list-presentation="table"?>
 140
 141       <varlistentry id="libgmp">
 142         <term><filename class="libraryfile">libgmp</filename></term>
 143         <listitem>
 144           <para>Contains precision math functions</para>
 145           <indexterm zone="ch-system-gmp libgmp">
 146             <primary sortas="c-libgmp">libgmp</primary>
 147           </indexterm>
 148         </listitem>
 149       </varlistentry>
 150
 151       <varlistentry id="libgmpxx">
 152         <term><filename class="libraryfile">libgmpxx</filename></term>
 153         <listitem>
 154           <para>Contains C++ precision math functions</para>
 155           <indexterm zone="ch-system-gmp libgmpxx">
 156             <primary sortas="c-libgmpxx">libgmpxx</primary>
 157           </indexterm>
 158         </listitem>
 159       </varlistentry>
 160     </variablelist>
 161
 162   </sect2>
 163
 164 </sect1>