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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
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Autoconf Macro: ax_boost_thread
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<hr>
<h1>
ax_boost_thread
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AX_BOOST_THREAD</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
Test for Thread library from the Boost C++ libraries. The macro requires a
preceding call to <a href="ax_boost_base.html">AX_BOOST_BASE</a>. Further
documentation is available at <<a href=
"http://randspringer.de/boost/index.html">http://randspringer.de/boost/index.html</a>>.
</p>
<p>
This macro calls:
</p>
<pre>
AC_SUBST(BOOST_THREAD_LIB)
</pre>
<p>
And sets:
</p>
<pre>
HAVE_BOOST_THREAD
</pre>
</div>
<h2>
Authors
</h2>
<p class="indent">
Thomas Porschberg <thomas@randspringer.de> and Michael Tindal
<mtindal@paradoxpoint.com>.
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2007-03-22
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AX_BOOST_THREAD],
[
AC_ARG_WITH([boost-thread],
AS_HELP_STRING([--with-boost-thread@<:@=special-lib@:>@],
[use the Thread library from boost - it is possible to specify a certain library for the linker
e.g. --with-boost-thread=boost_thread-gcc-mt ]),
[
if test "$withval" = "no"; then
want_boost="no"
elif test "$withval" = "yes"; then
want_boost="yes"
ax_boost_user_thread_lib=""
else
want_boost="yes"
ax_boost_user_thread_lib="$withval"
fi
],
[want_boost="yes"]
)
if test "x$want_boost" = "xyes"; then
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_BUILD])
CPPFLAGS_SAVED="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
export CPPFLAGS
LDFLAGS_SAVED="$LDFLAGS"
LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
export LDFLAGS
AC_CACHE_CHECK(whether the Boost::Thread library is available,
ax_cv_boost_thread,
[AC_LANG_PUSH([C++])
CXXFLAGS_SAVE=$CXXFLAGS
if test "x$build_os" = "xsolaris" ; then
CXXFLAGS="-pthreads $CXXFLAGS"
elif test "x$build_os" = "xming32" ; then
CXXFLAGS="-mthreads $CXXFLAGS"
else
CXXFLAGS="-pthread $CXXFLAGS"
fi
AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[@%:@include <boost/thread/thread.hpp>]],
[[boost::thread_group thrds;
return 0;]]),
ax_cv_boost_thread=yes, ax_cv_boost_thread=no)
CXXFLAGS=$CXXFLAGS_SAVE
AC_LANG_POP([C++])
])
if test "x$ax_cv_boost_thread" = "xyes"; then
if test "x$build_os" = "xsolaris" ; then
BOOST_CPPFLAGS="-pthreads $BOOST_CPPFLAGS"
elif test "x$build_os" = "xming32" ; then
BOOST_CPPFLAGS="-mthreads $BOOST_CPPFLAGS"
else
BOOST_CPPFLAGS="-pthread $BOOST_CPPFLAGS"
fi
AC_SUBST(BOOST_CPPFLAGS)
AC_DEFINE(HAVE_BOOST_THREAD,,[define if the Boost::Thread library is available])
BN=boost_thread
LDFLAGS_SAVE=$LDFLAGS
case "x$build_os" in
*bsd* )
LDFLAGS="-pthread $LDFLAGS"
break;
;;
esac
if test "x$ax_boost_user_thread_lib" = "x"; then
for ax_lib in $BN $BN-mt $BN-$CC $BN-$CC-mt $BN-$CC-mt-s $BN-$CC-s \
lib$BN lib$BN-mt lib$BN-$CC lib$BN-$CC-mt lib$BN-$CC-mt-s lib$BN-$CC-s \
$BN-mgw $BN-mgw $BN-mgw-mt $BN-mgw-mt-s $BN-mgw-s ; do
AC_CHECK_LIB($ax_lib, main, [BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
[link_thread="no"])
done
else
for ax_lib in $ax_boost_user_thread_lib $BN-$ax_boost_user_thread_lib; do
AC_CHECK_LIB($ax_lib, main,
[BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
[link_thread="no"])
done
fi
if test "x$link_thread" = "xno"; then
AC_MSG_ERROR(Could not link against $ax_lib !)
else
case "x$build_os" in
*bsd* )
BOOST_LDFLAGS="-pthread $BOOST_LDFLAGS"
break;
;;
esac
fi
fi
CPPFLAGS="$CPPFLAGS_SAVED"
LDFLAGS="$LDFLAGS_SAVED"
fi
])
</pre>
</div>
<h2>
License
</h2>
<div class="indent">
<span style="white-space:nowrap;">Copyright © 2007 Thomas Porschberg
<thomas@randspringer.de></span><br>
<span style="white-space:nowrap;">Copyright © 2007 Michael Tindal
<mtindal@paradoxpoint.com></span>
<p>
Copying and distribution of this file, with or without modification, are
permitted in any medium without royalty provided the copyright notice and
this notice are preserved.
</p>
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