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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_boost_thread.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_BOOST_THREAD
#
# DESCRIPTION
#
# Test for Thread library from the Boost C++ libraries. The macro requires
# a preceding call to AX_BOOST_BASE. Further documentation is available at
# <http://randspringer.de/boost/index.html>.
#
# This macro calls:
#
# AC_SUBST(BOOST_THREAD_LIB)
#
# And sets:
#
# HAVE_BOOST_THREAD
#
# LICENSE
#
# Copyright (c) 2009 Thomas Porschberg <thomas@randspringer.de>
# Copyright (c) 2009 Michael Tindal
#
# 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. This file is offered as-is, without any
# warranty.
#serial 30
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 "$withval" = "yes"; then
want_boost="yes"
ax_boost_user_thread_lib=""
else
want_boost="yes"
ax_boost_user_thread_lib="$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$host_os" = "xsolaris" ; then
CXXFLAGS="-pthreads $CXXFLAGS"
elif test "x$host_os" = "xmingw32" ; 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$ax_cv_boost_thread" = "xyes"; then
if test "x$host_os" = "xsolaris" ; then
BOOST_CPPFLAGS="-pthreads $BOOST_CPPFLAGS"
elif test "x$host_os" = "xmingw32" ; 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])
BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
LDFLAGS_SAVE=$LDFLAGS
case "x$host_os" in
*bsd* )
LDFLAGS="-pthread $LDFLAGS"
break;
;;
esac
if test "x$ax_boost_user_thread_lib" = "x"; then
for libextension in `ls -r $BOOSTLIBDIR/libboost_thread* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'`; do
ax_lib=${libextension}
AC_CHECK_LIB($ax_lib, exit,
[link_thread="yes"; break],
[link_thread="no"])
done
if test "x$link_thread" != "xyes"; then
for libextension in `ls -r $BOOSTLIBDIR/boost_thread* 2>/dev/null | sed 's,.*/,,' | sed 's,\..*,,'`; do
ax_lib=${libextension}
AC_CHECK_LIB($ax_lib, exit,
[link_thread="yes"; break],
[link_thread="no"])
done
fi
else
for ax_lib in $ax_boost_user_thread_lib boost_thread-$ax_boost_user_thread_lib; do
AC_CHECK_LIB($ax_lib, exit,
[link_thread="yes"; break],
[link_thread="no"])
done
fi
if test "x$ax_lib" = "x"; then
AC_MSG_ERROR(Could not find a version of the library!)
fi
if test "x$link_thread" = "xno"; then
AC_MSG_ERROR(Could not link against $ax_lib !)
else
BOOST_THREAD_LIB="-l$ax_lib"
case "x$host_os" in
*bsd* )
BOOST_LDFLAGS="-pthread $BOOST_LDFLAGS"
break;
;;
solaris )
BOOST_THREAD_LIB="$BOOST_THREAD_LIB -lpthread"
break;
;;
mingw32 )
break;
;;
* )
BOOST_THREAD_LIB="$BOOST_THREAD_LIB -lpthread"
break;
;;
esac
AC_SUBST(BOOST_THREAD_LIB)
fi
fi
CPPFLAGS="$CPPFLAGS_SAVED"
LDFLAGS="$LDFLAGS_SAVED"
fi
])
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