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libstdc++: Document --enable-cstdio=stdio_pure [PR104299]

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libstdc++-v3/ChangeLog:

	PR libstdc++/104299
	* doc/xml/manual/configure.xml: Describe stdio_pure argument to
	--enable-cstdio.
	* doc/html/manual/configure.html: Regenerate.

(cherry picked from commit b90a70984a9beee39b41f842b56926f9db2069ca)
This commit is contained in:
Jonathan Wakely 2023-07-06 16:25:47 +01:00
parent 41d940c0c4
commit 94d24f1af6
2 changed files with 16 additions and 6 deletions
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11
libstdc++-v3/doc/html/manual/configure.html
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@ -38,9 +38,14 @@
</p><pre class="programlisting">
--with-gxx-include-dir=/foo/H-x86-gcc-3-c-gxx-inc/include/4.4-20090404</pre></dd><dt><span class="term"><code class="code">--enable-cstdio</code></span></dt><dd><p>This is an abbreviated form of <code class="code">'--enable-cstdio=stdio'</code>
(described next).
</p></dd><dt><span class="term"><code class="code">--enable-cstdio=OPTION</code></span></dt><dd><p>Select a target-specific I/O package. At the moment, the only
choice is to use 'stdio', a generic "C" abstraction.
The default is 'stdio'. This option can change the library ABI.
</p></dd><dt><span class="term"><code class="code">--enable-cstdio=OPTION</code></span></dt><dd><p>Select a target-specific I/O package. The choices are 'stdio'
which is a generic abstraction using POSIX file I/O APIs
(<code class="function">read</code>, <code class="function">write</code>,
<code class="function">lseek</code>, etc.), and 'stdio_pure' which is similar
but only uses standard C file I/O APIs (<code class="function">fread</code>,
<code class="function">fwrite</code>, <code class="function">fseek</code>, etc.).
The 'stdio_posix' choice is a synonym for 'stdio'.
The default is 'stdio'. This option can change the library ABI.
</p></dd><dt><span class="term"><code class="code">--enable-clocale</code></span></dt><dd><p>This is an abbreviated form of <code class="code">'--enable-clocale=generic'</code>
(described next).
</p></dd><dt><span class="term"><code class="code">--enable-clocale=OPTION</code></span></dt><dd><p>Select a target-specific underlying locale package. The

11
libstdc++-v3/doc/xml/manual/configure.xml
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@ -74,9 +74,14 @@
</listitem></varlistentry>
<varlistentry><term><code>--enable-cstdio=OPTION</code></term>
<listitem><para>Select a target-specific I/O package. At the moment, the only
choice is to use 'stdio', a generic "C" abstraction.
The default is 'stdio'. This option can change the library ABI.
<listitem><para>Select a target-specific I/O package. The choices are 'stdio'
which is a generic abstraction using POSIX file I/O APIs
(<function>read</function>, <function>write</function>,
<function>lseek</function>, etc.), and 'stdio_pure' which is similar
but only uses standard C file I/O APIs (<function>fread</function>,
<function>fwrite</function>, <function>fseek</function>, etc.).
The 'stdio_posix' choice is a synonym for 'stdio'.
The default is 'stdio'. This option can change the library ABI.
</para>
</listitem></varlistentry>