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AX_BOOST_SIGNALS
Test for Signals 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_SIGNALS_LIB)
And sets:
HAVE_BOOST_SIGNALS
Thomas Porschberg <thomas@randspringer.de> and Michael Tindal <mtindal@paradoxpoint.com>.
2007-03-12
AC_DEFUN([AX_BOOST_SIGNALS],
[
AC_ARG_WITH([boost-signals],
AS_HELP_STRING([--with-boost-signals@<:@=special-lib@:>@],
[use the Signals library from boost - it is possible to specify a certain library for the linker
e.g. --with-boost-signals=boost_signals-gcc-mt-d ]),
[
if test "$withval" = "no"; then
want_boost="no"
elif test "$withval" = "yes"; then
want_boost="yes"
ax_boost_user_signals_lib=""
else
want_boost="yes"
ax_boost_user_signals_lib="$withval"
fi
],
[want_boost="yes"]
)
if test "x$want_boost" = "xyes"; then
AC_REQUIRE([AC_PROG_CC])
CPPFLAGS_SAVED="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
export CPPFLAGS
LDFLAGS_SAVED="$LDFLAGS"
LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
export LDFLAGS
AC_CACHE_CHECK(whether the Boost::Signals library is available,
ax_cv_boost_signals,
[AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[@%:@include <boost/signal.hpp>
]],
[[boost::signal<void ()> sig;
return 0;
]]),
ax_cv_boost_signals=yes, ax_cv_boost_signals=no)
AC_LANG_POP([C++])
])
if test "x$ax_cv_boost_signals" = "xyes"; then
AC_DEFINE(HAVE_BOOST_SIGNALS,,[define if the Boost::Signals library is available])
BN=boost_signals
if test "x$ax_boost_user_signals_lib" = "x"; then
for ax_lib in $BN $BN-$CC $BN-$CC-mt $BN-$CC-mt-s $BN-$CC-s \
lib$BN lib$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_SIGNALS_LIB="-l$ax_lib"; AC_SUBST(BOOST_SIGNALS_LIB) link_signals="yes"; break],
[link_signals="no"])
done
else
for ax_lib in $ax_boost_user_signals_lib $BN-$ax_boost_user_signals_lib; do
AC_CHECK_LIB($ax_lib, main,
[BOOST_SIGNALS_LIB="-l$ax_lib"; AC_SUBST(BOOST_SIGNALS_LIB) link_signals="yes"; break],
[link_signals="no"])
done
fi
if test "x$link_signals" = "xno"; then
AC_MSG_ERROR(Could not link against $ax_lib !)
fi
fi
CPPFLAGS="$CPPFLAGS_SAVED"
LDFLAGS="$LDFLAGS_SAVED"
fi
])
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