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<sect1 id="manual.intro.setup.prereq" xreflabel="Prerequisites">
<?dbhtml filename="prerequisites.html"?>
<sect1info>
<keywordset>
<keyword>
ISO C++
</keyword>
<keyword>
Prerequisites
</keyword>
</keywordset>
</sect1info>
<title>Prerequisites</title>
<para>
Because libstdc++ is part of GCC, the primary source for
installation instructions is
<ulink url="http://gcc.gnu.org/install/">the GCC install page</ulink>.
In particular, list of prerequisite software needed to build the library
<ulink url="http://gcc.gnu.org/install/prerequisites.html">
starts with those requirements.</ulink> The same pages also list
the tools you will need if you wish to modify the source.
</para>
<para>
Additional data is given here only where it applies to libstdc++.
</para>
<para>As of GCC 4.0.1 the minimum version of binutils required to build
libstdc++ is <code>2.15.90.0.1.1</code>. You can get snapshots
(as well as releases) of binutils from
<ulink url="ftp://sources.redhat.com/pub/binutils/">
ftp://sources.redhat.com/pub/binutils</ulink>.
Older releases of libstdc++ do not require such a recent version,
but to take full advantage of useful space-saving features and
bug-fixes you should use a recent binutils whenever possible.
The configure process will automatically detect and use these
features if the underlying support is present.
</para>
<para>
To generate the API documentation from the sources you will need
Doxygen, see <link linkend="contrib.doc_style">Documentation
Style</link> in the appendix for full details.
</para>
<para>
Finally, a few system-specific requirements:
</para>
<variablelist>
<varlistentry>
<term>linux</term>
<listitem>
<para>
If gcc 3.1.0 or later on is being used on linux, an attempt
will be made to use "C" library functionality necessary for
C++ named locale support. For gcc 4.6.0 and later, this
means that glibc 2.3 or later is required.
</para>
<para>
If the 'gnu' locale model is being used, the following
locales are used and tested in the libstdc++ testsuites.
The first column is the name of the locale, the second is
the character set it is expected to use.
</para>
<programlisting>
de_DE ISO-8859-1
de_DE@euro ISO-8859-15
en_GB ISO-8859-1
en_HK ISO-8859-1
en_PH ISO-8859-1
en_US ISO-8859-1
en_US.ISO-8859-1 ISO-8859-1
en_US.ISO-8859-15 ISO-8859-15
en_US.UTF-8 UTF-8
es_ES ISO-8859-1
es_MX ISO-8859-1
fr_FR ISO-8859-1
fr_FR@euro ISO-8859-15
is_IS UTF-8
it_IT ISO-8859-1
ja_JP.eucjp EUC-JP
ru_RU.ISO-8859-5 ISO-8859-5
ru_RU.UTF-8 UTF-8
se_NO.UTF-8 UTF-8
ta_IN UTF-8
zh_TW BIG5
</programlisting>
<para>Failure to have the underlying "C" library locale
information installed will mean that C++ named locales for the
above regions will not work: because of this, the libstdc++
testsuite will skip the named locale tests. If this isn't an
issue, don't worry about it. If named locales are needed, the
underlying locale information must be installed. Note that
rebuilding libstdc++ after the "C" locales are installed is not
necessary.
</para>
<para>
To install support for locales, do only one of the following:
</para>
<itemizedlist>
<listitem>
<para>install all locales</para>
<itemizedlist>
<listitem>
<para>with RedHat Linux:
</para>
<para> <code> export LC_ALL=C </code>
</para>
<para> <code> rpm -e glibc-common --nodeps </code>
</para>
<para>
<code> rpm -i --define "_install_langs all"
glibc-common-2.2.5-34.i386.rpm
</code>
</para>
</listitem>
<listitem>
<para>
Instructions for other operating systems solicited.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>install just the necessary locales</para>
<itemizedlist>
<listitem>
<para>with Debian Linux:</para>
<para> Add the above list, as shown, to the file
<code>/etc/locale.gen</code> </para>
<para> run <code>/usr/sbin/locale-gen</code> </para>
</listitem>
<listitem>
<para>on most Unix-like operating systems:</para>
<para><code> localedef -i de_DE -f ISO-8859-1 de_DE </code></para>
<para>(repeat for each entry in the above list) </para>
</listitem>
<listitem>
<para>
Instructions for other operating systems solicited.
</para>
</listitem>
</itemizedlist>
</listitem>
</itemizedlist>
</listitem>
</varlistentry>
</variablelist>
</sect1>
|
