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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with no
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Invariant Sections, the Front-Cover texts being (a) (see below), and
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with the Back-Cover Texts being (b) (see below). A copy of the
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Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>Installing GCC</title>
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<meta name="description" content="Installing GCC">
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<meta name="keywords" content="Installing GCC">
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<meta name="resource-type" content="document">
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<style type="text/css">
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</head>
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<body lang="en">
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<h1 class="settitle" align="center">Installing GCC</h1>
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<p>Now that GCC has been built (and optionally tested), you can install it with
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</p><div class="smallexample">
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<pre class="smallexample">cd <var>objdir</var> && make install
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</pre></div>
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<p>We strongly recommend to install into a target directory where there is
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no previous version of GCC present. Also, the GNAT runtime should not
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be stripped, as this would break certain features of the debugger that
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depend on this debugging information (catching Ada exceptions for
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instance).
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</p>
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<p>That step completes the installation of GCC; user level binaries can
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be found in <samp><var>prefix</var>/bin</samp> where <var>prefix</var> is the value
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you specified with the <samp>--prefix</samp> to configure (or
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<samp>/usr/local</samp> by default). (If you specified <samp>--bindir</samp>,
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that directory will be used instead; otherwise, if you specified
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<samp>--exec-prefix</samp>, <samp><var>exec-prefix</var>/bin</samp> will be used.)
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Headers for the C++ library are installed in
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<samp><var>prefix</var>/include</samp>; libraries in <samp><var>libdir</var></samp>
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(normally <samp><var>prefix</var>/lib</samp>); internal parts of the compiler in
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<samp><var>libdir</var>/gcc</samp> and <samp><var>libexecdir</var>/gcc</samp>; documentation
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in info format in <samp><var>infodir</var></samp> (normally
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<samp><var>prefix</var>/info</samp>).
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</p>
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<p>When installing cross-compilers, GCC’s executables
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are not only installed into <samp><var>bindir</var></samp>, that
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is, <samp><var>exec-prefix</var>/bin</samp>, but additionally into
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<samp><var>exec-prefix</var>/<var>target-alias</var>/bin</samp>, if that directory
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exists. Typically, such <em>tooldirs</em> hold target-specific
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binutils, including assembler and linker.
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</p>
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<p>Installation into a temporary staging area or into a <code>chroot</code>
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jail can be achieved with the command
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</p>
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<div class="smallexample">
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<pre class="smallexample">make DESTDIR=<var>path-to-rootdir</var> install
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</pre></div>
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<p>where <var>path-to-rootdir</var> is the absolute path of
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a directory relative to which all installation paths will be
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interpreted. Note that the directory specified by <code>DESTDIR</code>
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need not exist yet; it will be created if necessary.
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</p>
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<p>There is a subtle point with tooldirs and <code>DESTDIR</code>:
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If you relocate a cross-compiler installation with
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e.g. ‘<samp>DESTDIR=<var>rootdir</var></samp>’, then the directory
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<samp><var>rootdir</var>/<var>exec-prefix</var>/<var>target-alias</var>/bin</samp> will
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be filled with duplicated GCC executables only if it already exists,
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it will not be created otherwise. This is regarded as a feature,
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not as a bug, because it gives slightly more control to the packagers
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using the <code>DESTDIR</code> feature.
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</p>
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<p>You can install stripped programs and libraries with
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</p>
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<div class="smallexample">
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<pre class="smallexample">make install-strip
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</pre></div>
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<p>If you are bootstrapping a released version of GCC then please
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quickly review the build status page for your release, available from
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<a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>.
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If your system is not listed for the version of GCC that you built,
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send a note to
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<a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> indicating
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that you successfully built and installed GCC.
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Include the following information:
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</p>
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<ul>
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<li> Output from running <samp><var>srcdir</var>/config.guess</samp>. Do not send
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that file itself, just the one-line output from running it.
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</li><li> The output of ‘<samp>gcc -v</samp>’ for your newly installed <code>gcc</code>.
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This tells us which version of GCC you built and the options you passed to
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configure.
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</li><li> Whether you enabled all languages or a subset of them. If you used a
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full distribution then this information is part of the configure
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options in the output of ‘<samp>gcc -v</samp>’, but if you downloaded the
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“core” compiler plus additional front ends then it isn’t apparent
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which ones you built unless you tell us about it.
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</li><li> If the build was for GNU/Linux, also include:
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<ul>
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<li> The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3);
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this information should be available from <samp>/etc/issue</samp>.
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</li><li> The version of the Linux kernel, available from ‘<samp>uname --version</samp>’
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or ‘<samp>uname -a</samp>’.
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</li><li> The version of glibc you used; for RPM-based systems like Red Hat,
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Mandrake, and SuSE type ‘<samp>rpm -q glibc</samp>’ to get the glibc version,
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and on systems like Debian and Progeny use ‘<samp>dpkg -l libc6</samp>’.
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</li></ul>
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<p>For other systems, you can include similar information if you think it is
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relevant.
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</p>
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</li><li> Any other information that you think would be useful to people building
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GCC on the same configuration. The new entry in the build status list
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will include a link to the archived copy of your message.
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</li></ul>
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<p>We’d also like to know if the
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<a href="specific.html">host/target specific installation notes</a>
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didn’t include your host/target information or if that information is
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incomplete or out of date. Send a note to
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<a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> detailing how the information should be changed.
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</p>
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<p>If you find a bug, please report it following the
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<a href="../bugs/">bug reporting guidelines</a>.
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</p>
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<p>If you want to print the GCC manuals, do ‘<samp>cd <var>objdir</var>; make
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dvi</samp>’. You will need to have <code>texi2dvi</code> (version at least 4.7)
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and TeX installed. This creates a number of <samp>.dvi</samp> files in
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subdirectories of <samp><var>objdir</var></samp>; these may be converted for
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printing with programs such as <code>dvips</code>. Alternately, by using
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‘<samp>make pdf</samp>’ in place of ‘<samp>make dvi</samp>’, you can create documentation
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in the form of <samp>.pdf</samp> files; this requires <code>texi2pdf</code>, which
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is included with Texinfo version 4.8 and later. You can also
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<a href="https://shop.fsf.org/">buy printed manuals from the
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Free Software Foundation</a>, though such manuals may not be for the most
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recent version of GCC.
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</p>
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<p>If you would like to generate online HTML documentation, do ‘<samp>cd
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<var>objdir</var>; make html</samp>’ and HTML will be generated for the gcc manuals in
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<samp><var>objdir</var>/gcc/HTML</samp>.
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</p>
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<hr />
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<p>
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<p><a href="./index.html">Return to the GCC Installation page</a>
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</p>
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2018-12-28 15:30:48 +00:00
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</body>
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</html>
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