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2 <head>
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3 <title>Installing GCC: Final installation</title>
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12 2008 Free Software Foundation, Inc.
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42 </head>
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43 <body>
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44 <h1 class="settitle">Installing GCC: Final installation</h1>
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45 Now that GCC has been built (and optionally tested), you can install it with
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46 <pre class="smallexample"> cd <var>objdir</var>; make install
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47 </pre>
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48 <p>We strongly recommend to install into a target directory where there is
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49 no previous version of GCC present. Also, the GNAT runtime should not
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50 be stripped, as this would break certain features of the debugger that
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51 depend on this debugging information (catching Ada exceptions for
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52 instance).
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53
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54 <p>That step completes the installation of GCC; user level binaries can
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55 be found in <samp><var>prefix</var><span class="file">/bin</span></samp> where <var>prefix</var> is the value
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56 you specified with the <samp><span class="option">--prefix</span></samp> to configure (or
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57 <samp><span class="file">/usr/local</span></samp> by default). (If you specified <samp><span class="option">--bindir</span></samp>,
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58 that directory will be used instead; otherwise, if you specified
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59 <samp><span class="option">--exec-prefix</span></samp>, <samp><var>exec-prefix</var><span class="file">/bin</span></samp> will be used.)
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60 Headers for the C++ and Java libraries are installed in
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61 <samp><var>prefix</var><span class="file">/include</span></samp>; libraries in <samp><var>libdir</var></samp>
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62 (normally <samp><var>prefix</var><span class="file">/lib</span></samp>); internal parts of the compiler in
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63 <samp><var>libdir</var><span class="file">/gcc</span></samp> and <samp><var>libexecdir</var><span class="file">/gcc</span></samp>; documentation
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64 in info format in <samp><var>infodir</var></samp> (normally
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65 <samp><var>prefix</var><span class="file">/info</span></samp>).
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66
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67 <p>When installing cross-compilers, GCC's executables
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68 are not only installed into <samp><var>bindir</var></samp>, that
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69 is, <samp><var>exec-prefix</var><span class="file">/bin</span></samp>, but additionally into
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70 <samp><var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span></samp>, if that directory
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71 exists. Typically, such <dfn>tooldirs</dfn> hold target-specific
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72 binutils, including assembler and linker.
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73
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74 <p>Installation into a temporary staging area or into a <samp><span class="command">chroot</span></samp>
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75 jail can be achieved with the command
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76
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77 <pre class="smallexample"> make DESTDIR=<var>path-to-rootdir</var> install
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78 </pre>
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79 <p class="noindent">where <var>path-to-rootdir</var> is the absolute path of
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80 a directory relative to which all installation paths will be
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81 interpreted. Note that the directory specified by <code>DESTDIR</code>
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82 need not exist yet; it will be created if necessary.
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83
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84 <p>There is a subtle point with tooldirs and <code>DESTDIR</code>:
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85 If you relocate a cross-compiler installation with
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86 e.g. ‘<samp><span class="samp">DESTDIR=</span><var>rootdir</var></samp>’, then the directory
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87 <samp><var>rootdir</var><span class="file">/</span><var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span></samp> will
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88 be filled with duplicated GCC executables only if it already exists,
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89 it will not be created otherwise. This is regarded as a feature,
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90 not as a bug, because it gives slightly more control to the packagers
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91 using the <code>DESTDIR</code> feature.
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92
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93 <p>If you are bootstrapping a released version of GCC then please
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94 quickly review the build status page for your release, available from
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95 <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>.
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96 If your system is not listed for the version of GCC that you built,
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97 send a note to
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98 <a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> indicating
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99 that you successfully built and installed GCC.
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100 Include the following information:
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101
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102 <ul>
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103 <li>Output from running <samp><var>srcdir</var><span class="file">/config.guess</span></samp>. Do not send
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104 that file itself, just the one-line output from running it.
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105
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106 <li>The output of ‘<samp><span class="samp">gcc -v</span></samp>’ for your newly installed <samp><span class="command">gcc</span></samp>.
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107 This tells us which version of GCC you built and the options you passed to
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108 configure.
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109
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110 <li>Whether you enabled all languages or a subset of them. If you used a
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111 full distribution then this information is part of the configure
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112 options in the output of ‘<samp><span class="samp">gcc -v</span></samp>’, but if you downloaded the
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113 “core” compiler plus additional front ends then it isn't apparent
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114 which ones you built unless you tell us about it.
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115
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116 <li>If the build was for GNU/Linux, also include:
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117 <ul>
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118 <li>The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3);
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119 this information should be available from <samp><span class="file">/etc/issue</span></samp>.
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120
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121 <li>The version of the Linux kernel, available from ‘<samp><span class="samp">uname --version</span></samp>’
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122 or ‘<samp><span class="samp">uname -a</span></samp>’.
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123
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124 <li>The version of glibc you used; for RPM-based systems like Red Hat,
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125 Mandrake, and SuSE type ‘<samp><span class="samp">rpm -q glibc</span></samp>’ to get the glibc version,
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126 and on systems like Debian and Progeny use ‘<samp><span class="samp">dpkg -l libc6</span></samp>’.
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127 </ul>
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128 For other systems, you can include similar information if you think it is
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129 relevant.
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130
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131 <li>Any other information that you think would be useful to people building
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132 GCC on the same configuration. The new entry in the build status list
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133 will include a link to the archived copy of your message.
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134 </ul>
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135
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136 <p>We'd also like to know if the
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137 <a href="specific.html">host/target specific installation notes</a>
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138 didn't include your host/target information or if that information is
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139 incomplete or out of date. Send a note to
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140 <a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> detailing how the information should be changed.
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141
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142 <p>If you find a bug, please report it following the
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143 <a href="../bugs.html">bug reporting guidelines</a>.
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144
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145 <p>If you want to print the GCC manuals, do ‘<samp><span class="samp">cd </span><var>objdir</var><span class="samp">; make
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146 dvi</span></samp>’. You will need to have <samp><span class="command">texi2dvi</span></samp> (version at least 4.7)
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147 and TeX installed. This creates a number of <samp><span class="file">.dvi</span></samp> files in
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148 subdirectories of <samp><var>objdir</var></samp>; these may be converted for
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149 printing with programs such as <samp><span class="command">dvips</span></samp>. Alternately, by using
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150 ‘<samp><span class="samp">make pdf</span></samp>’ in place of ‘<samp><span class="samp">make dvi</span></samp>’, you can create documentation
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151 in the form of <samp><span class="file">.pdf</span></samp> files; this requires <samp><span class="command">texi2pdf</span></samp>, which
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152 is included with Texinfo version 4.8 and later. You can also
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153 <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
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154 recent version of GCC.
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155
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156 <p>If you would like to generate online HTML documentation, do ‘<samp><span class="samp">cd
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157 </span><var>objdir</var><span class="samp">; make html</span></samp>’ and HTML will be generated for the gcc manuals in
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158 <samp><var>objdir</var><span class="file">/gcc/HTML</span></samp>.
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159
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160 <p><hr />
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161 <p><a href="./index.html">Return to the GCC Installation page</a>
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162
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163 <!-- ***Binaries**************************************************************** -->
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164 <!-- ***Specific**************************************************************** -->
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165 <!-- ***Old documentation****************************************************** -->
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166 <!-- ***GFDL******************************************************************** -->
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167 <!-- *************************************************************************** -->
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168 <!-- Part 6 The End of the Document -->
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169 </body></html>
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170
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