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134 lines
4.3 KiB
XML
134 lines
4.3 KiB
XML
<section xmlns="http://docbook.org/ns/docbook" version="5.0"
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xml:id="manual.intro.setup.prereq" xreflabel="Prerequisites">
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<?dbhtml filename="prerequisites.html"?>
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<info><title>Prerequisites</title>
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<keywordset>
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<keyword>ISO C++</keyword>
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<keyword>Prerequisites</keyword>
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</keywordset>
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</info>
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<para>
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Because libstdc++ is part of GCC, the primary source for
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installation instructions is
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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://gcc.gnu.org/install/">the GCC install page</link>.
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In particular, list of prerequisite software needed to build the library
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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://gcc.gnu.org/install/prerequisites.html">
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starts with those requirements.</link> The same pages also list
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the tools you will need if you wish to modify the source.
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</para>
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<para>
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Additional data is given here only where it applies to libstdc++.
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</para>
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<para>As of GCC 4.0.1 the minimum version of binutils required to build
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libstdc++ is <code>2.15.90.0.1.1</code>.
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Older releases of libstdc++ do not require such a recent version,
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but to take full advantage of useful space-saving features and
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bug-fixes you should use a recent binutils whenever possible.
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The configure process will automatically detect and use these
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features if the underlying support is present.
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</para>
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<para>
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To generate the API documentation from the sources you will need
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Doxygen, see <link linkend="appendix.porting.doc">Documentation
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Hacking</link> in the appendix for full details.
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</para>
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<para>
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Finally, a few system-specific requirements:
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</para>
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<variablelist>
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<varlistentry>
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<term>linux</term>
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<listitem>
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<para>
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If GCC 3.1.0 or later on is being used on GNU/Linux, an attempt
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will be made to use "C" library functionality necessary for
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C++ named locale support. For GCC 4.6.0 and later, this
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means that glibc 2.3 or later is required.
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</para>
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<para>
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If the 'gnu' locale model is being used, the following
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locales are used and tested in the libstdc++ testsuites.
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The first column is the name of the locale, the second is
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the character set it is expected to use.
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</para>
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<programlisting>
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de_DE ISO-8859-1
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de_DE@euro ISO-8859-15
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en_GB ISO-8859-1
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en_HK ISO-8859-1
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en_PH ISO-8859-1
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en_US ISO-8859-1
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en_US.ISO-8859-1 ISO-8859-1
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en_US.ISO-8859-15 ISO-8859-15
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en_US.UTF-8 UTF-8
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es_ES ISO-8859-1
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es_MX ISO-8859-1
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fr_FR ISO-8859-1
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fr_FR@euro ISO-8859-15
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is_IS UTF-8
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it_IT ISO-8859-1
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ja_JP.eucjp EUC-JP
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ru_RU.ISO-8859-5 ISO-8859-5
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ru_RU.UTF-8 UTF-8
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se_NO.UTF-8 UTF-8
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ta_IN UTF-8
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zh_TW BIG5
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</programlisting>
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<para>Failure to have installed the underlying "C" library
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locale information for any of the above regions means that
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the corresponding C++ named locale will not work: because of
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this, the libstdc++ testsuite will skip named locale tests
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which need missing information. If this isn't an issue, don't
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worry about it. If a named locale is needed, the underlying
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locale information must be installed. Note that rebuilding
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libstdc++ after "C" locales are installed is not necessary.
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</para>
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<para>
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To install support for locales, do only one of the following:
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</para>
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<itemizedlist>
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<listitem>
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<para>install all locales</para>
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</listitem>
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<listitem>
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<para>install just the necessary locales</para>
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<itemizedlist>
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<listitem>
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<para>with Debian GNU/Linux:</para>
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<para> Add the above list, as shown, to the file
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<code>/etc/locale.gen</code> </para>
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<para> run <code>/usr/sbin/locale-gen</code> </para>
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</listitem>
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<listitem>
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<para>on most Unix-like operating systems:</para>
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<para><code> localedef -i de_DE -f ISO-8859-1 de_DE </code></para>
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<para>(repeat for each entry in the above list) </para>
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</listitem>
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<listitem>
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<para>
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Instructions for other operating systems solicited.
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</para>
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</listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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</listitem>
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</varlistentry>
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</variablelist>
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</section>
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