<title>Installing GCC: Configuration</title>
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+Copyright (C) 1988-2013 Free Software Foundation, Inc.
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will try to guess whether the <code>.init_array</code> and
<code>.fini_array</code> sections are supported and, if they are, use them.
- <br><dt><code>--enable-build-with-cxx</code><dd>Build GCC using a C++ compiler rather than a C compiler. This is an
-experimental option which may become the default in a later release.
-
- <br><dt><code>--enable-build-poststage1-with-cxx</code><dd>When bootstrapping, build stages 2 and 3 of GCC using a C++ compiler
-rather than a C compiler. Stage 1 is still built with a C compiler.
-This is enabled by default and may be disabled using
-<samp><span class="option">--disable-build-poststage1-with-cxx</span></samp>.
-
<br><dt><code>--enable-maintainer-mode</code><dd>The build rules that regenerate the Autoconf and Automake output files as
well as the GCC master message catalog <samp><span class="file">gcc.pot</span></samp> are normally
disabled. This is because it can only be rebuilt if the complete source
allocation is gathered. This information is printed when using
<samp><span class="option">-fmem-report</span></samp>.
- <br><dt><code>--with-gc</code><dt><code>--with-gc=</code><var>choice</var><dd>With this option you can specify the garbage collector implementation
-used during the compilation process. <var>choice</var> can be one of
-‘<samp><span class="samp">page</span></samp>’ and ‘<samp><span class="samp">zone</span></samp>’, where ‘<samp><span class="samp">page</span></samp>’ is the default.
-
<br><dt><code>--enable-nls</code><dt><code>--disable-nls</code><dd>The <samp><span class="option">--enable-nls</span></samp> option enables Native Language Support (NLS),
which lets GCC output diagnostics in languages other than American
English. Native Language Support is enabled by default if not doing a
<p>These flags are applicable to the host platform only. When building
a cross compiler, they will not be used to configure target libraries.
- <br><dt><code>--with-ppl=</code><var>pathname</var><dt><code>--with-ppl-include=</code><var>pathname</var><dt><code>--with-ppl-lib=</code><var>pathname</var><dt><code>--with-cloog=</code><var>pathname</var><dt><code>--with-cloog-include=</code><var>pathname</var><dt><code>--with-cloog-lib=</code><var>pathname</var><dd>If you do not have PPL (the Parma Polyhedra Library) and the CLooG
+ <br><dt><code>--with-isl=</code><var>pathname</var><dt><code>--with-isl-include=</code><var>pathname</var><dt><code>--with-isl-lib=</code><var>pathname</var><dt><code>--with-cloog=</code><var>pathname</var><dt><code>--with-cloog-include=</code><var>pathname</var><dt><code>--with-cloog-lib=</code><var>pathname</var><dd>If you do not have ISL and the CLooG
libraries installed in a standard location and you want to build GCC,
you can explicitly specify the directory where they are installed
-(‘<samp><span class="samp">--with-ppl=</span><var>pplinstalldir</var></samp>’,
+(‘<samp><span class="samp">--with-isl=</span><var>islinstalldir</var></samp>’,
‘<samp><span class="samp">--with-cloog=</span><var>clooginstalldir</var></samp>’). The
-<samp><span class="option">--with-ppl=</span><var>pplinstalldir</var></samp> option is shorthand for
-<samp><span class="option">--with-ppl-lib=</span><var>pplinstalldir</var><span class="option">/lib</span></samp> and
-<samp><span class="option">--with-ppl-include=</span><var>pplinstalldir</var><span class="option">/include</span></samp>. Likewise the
+<samp><span class="option">--with-isl=</span><var>islinstalldir</var></samp> option is shorthand for
+<samp><span class="option">--with-isl-lib=</span><var>islinstalldir</var><span class="option">/lib</span></samp> and
+<samp><span class="option">--with-isl-include=</span><var>islinstalldir</var><span class="option">/include</span></samp>. Likewise the
<samp><span class="option">--with-cloog=</span><var>clooginstalldir</var></samp> option is shorthand for
<samp><span class="option">--with-cloog-lib=</span><var>clooginstalldir</var><span class="option">/lib</span></samp> and
<samp><span class="option">--with-cloog-include=</span><var>clooginstalldir</var><span class="option">/include</span></samp>. If these
link time when <samp><span class="option">-fuse-linker-plugin</span></samp> is enabled.
This linker should have plugin support such as gold starting with
version 2.20 or GNU ld starting with version 2.21.
-See <samp><span class="option">-fuse-linker-plugin</span></samp> for details.
+See <samp><span class="option">-fuse-linker-plugin</span></samp> for details.
+
+ <br><dt><code>--enable-canonical-system-headers</code><dt><code>--disable-canonical-system-headers</code><dd>Enable system header path canonicalization for <samp><span class="file">libcpp</span></samp>. This can
+produce shorter header file paths in diagnostics and dependency output
+files, but these changed header paths may conflict with some compilation
+environments. Enabled by default, and may be disabled using
+<samp><span class="option">--disable-canonical-system-headers</span></samp>.
</dl>
<h4 class="subheading"><a name="TOC3"></a>Cross-Compiler-Specific Options</h4>
projects / platform / upstream / gcc48.git / blobdiff