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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
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<head>
<title>Autoconf Macro: ac_cxx_cppflags_std_lang</title>
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<td style="width:50%;" align="center">[<a href=
"../m4source/ac_cxx_cppflags_std_lang.m4">Download M4 Source</a>]</td>
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<hr>
<h1>ac_cxx_cppflags_std_lang</h1>
<h2>Synopsis</h2>
<div class="indent">
<p style="text-align:left; white-space:nowrap;">
<code>AC_CXX_CPPFLAGS_STD_LANG(CPP-FLAGS)</code></p>
</div>
<h2>Description</h2>
<div class="indent">
<p>Append to CPP-FLAGS the set of flags that should be passed to the C++
preprocessor in order to enable use of C++ features as defined in the ANSI
C++ standard (eg. use of standard iostream classes in the `std' namespace,
etc.).</p>
</div>
<h2>Version</h2>
<div class="indent">
<p>20040907</p>
</div>
<h2>Author</h2>
<div class="indent">
<p>Ludovic Courts <ludo@chbouib.org></p>
</div>
<h2>M4 Source Code</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_CXX_CPPFLAGS_STD_LANG],
[AC_REQUIRE([AC_CXX_COMPILER_VENDOR])
case "$ac_cv_cxx_compiler_vendor" in
compaq)
# By default, Compaq CXX has an iostream classes implementation
# that is _not_ in the `std' namespace.
$1="$$1 -D__USE_STD_IOSTREAM=1";;
hp)
# When `configure' looks for a C++ header (eg. <iostream>) it invokes
# `aCC -E $CPPFLAGS'. However, including standard C++ headers like
# <iostream> fails if `-AA' is not supplied.
$1="$$1 -AA";;
esac])
</pre>
</div>
<h2>Copyright</h2>
<div class="indent">
<a href="COPYING.html">GNU General Public License</a> with this special
<a href="COPYING-Exception.html">exception</a>.
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