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42<h1 class="settitle">Installing GCC: Final installation</h1>
43Now that GCC has been built (and optionally tested), you can install it with
44<pre class="example">     cd <var>objdir</var>; make install
45</pre>
46   <p>We strongly recommend to install into a target directory where there is
47no previous version of GCC present.
48
49   <p>That step completes the installation of GCC; user level binaries can
50be found in <var>prefix</var><span class="file">/bin</span> where <var>prefix</var> is the value you
51specified with the <span class="option">--prefix</span> to configure (or <span class="file">/usr/local</span>
52by default).  (If you specified <span class="option">--bindir</span>, that directory will
53be used instead; otherwise, if you specified <span class="option">--exec-prefix</span>,
54<var>exec-prefix</var><span class="file">/bin</span> will be used.)  Headers for the C++ and
55Java libraries are installed in <var>prefix</var><span class="file">/include</span>; libraries
56in <var>libdir</var> (normally <var>prefix</var><span class="file">/lib</span>); internal
57parts of the compiler in <var>libdir</var><span class="file">/gcc-lib</span>; documentation in
58info format in <var>infodir</var> (normally <var>prefix</var><span class="file">/info</span>).
59
60   <p>When installing cross-compilers, GCC's executables
61are not only installed into <var>bindir</var>, that
62is, <var>exec-prefix</var><span class="file">/bin</span>, but additionally into
63<var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span>, if that directory
64exists.  Typically, such <dfn>tooldirs</dfn> hold target-specific
65binutils, including assembler and linker.
66
67   <p>Installation into a temporary staging area or into a <span class="command">chroot</span>
68jail can be achieved with the command
69
70<pre class="example">     make DESTDIR=<var>path-to-rootdir</var> install
71</pre>
72   <p class="noindent">where <var>path-to-rootdir</var> is the absolute path of
73a directory relative to which all installation paths will be
74interpreted.  Note that the directory specified by <code>DESTDIR</code>
75need not exist yet; it will be created if necessary.
76
77   <p>There is a subtle point with tooldirs and <code>DESTDIR</code>:
78If you relocate a cross-compiler installation with
79e.g. <span class="samp">DESTDIR=</span><var>rootdir</var>, then the directory
80<var>rootdir</var><span class="file">/</span><var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span> will
81be filled with duplicated GCC executables only if it already exists,
82it will not be created otherwise.  This is regarded as a feature,
83not as a bug, because it gives slightly more control to the packagers
84using the <code>DESTDIR</code> feature.
85
86   <p>If you built a released version of GCC using <span class="samp">make bootstrap</span> then please
87quickly review the build status page for your release, available from
88<a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>. 
89If your system is not listed for the version of GCC that you built,
90send a note to
91<a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> indicating
92that you successfully built and installed GCC. 
93Include the following information:
94
95     <ul>
96<li>Output from running <var>srcdir</var><span class="file">/config.guess</span>.  Do not send us
97that file itself, just the one-line output from running it.
98
99     <li>The output of <span class="samp">gcc -v</span> for your newly installed gcc. 
100This tells us which version of GCC you built and the options you passed to
101configure.
102
103     <li>Whether you enabled all languages or a subset of them.  If you used a
104full distribution then this information is part of the configure
105options in the output of <span class="samp">gcc -v</span>, but if you downloaded the
106&ldquo;core&rdquo; compiler plus additional front ends then it isn't apparent
107which ones you built unless you tell us about it.
108
109     <li>If the build was for GNU/Linux, also include:
110          <ul>
111<li>The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3);
112this information should be available from <span class="file">/etc/issue</span>.
113
114          <li>The version of the Linux kernel, available from <span class="samp">uname --version</span>
115or <span class="samp">uname -a</span>.
116
117          <li>The version of glibc you used; for RPM-based systems like Red Hat,
118Mandrake, and SuSE type <span class="samp">rpm -q glibc</span> to get the glibc version,
119and on systems like Debian and Progeny use <span class="samp">dpkg -l libc6</span>. 
120</ul>
121     For other systems, you can include similar information if you think it is
122relevant.
123
124     <li>Any other information that you think would be useful to people building
125GCC on the same configuration.  The new entry in the build status list
126will include a link to the archived copy of your message. 
127</ul>
128
129   <p>We'd also like to know if the
130<a href="specific.html">host/target specific installation notes</a>
131didn't include your host/target information or if that information is
132incomplete or out of date.  Send a note to
133<a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> telling us how the information should be changed.
134
135   <p>If you find a bug, please report it following our
136<a href="../bugs.html">bug reporting guidelines</a>.
137
138   <p>If you want to print the GCC manuals, do <span class="samp">cd </span><var>objdir</var><span class="samp">; make
139dvi</span>.  You will need to have <span class="command">texi2dvi</span> (version at least 4.2)
140and TeX installed.  This creates a number of <span class="file">.dvi</span> files in
141subdirectories of <var>objdir</var>; these may be converted for
142printing with programs such as <span class="command">dvips</span>.  You can also
143<a href="http://www.gnu.org/order/order.html">buy printed manuals from the Free Software Foundation</a>, though such manuals may not be for the most
144recent version of GCC.
145
146   <p><hr />
147<p><a href="./index.html">Return to the GCC Installation page</a>
148
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