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ax_boost_signals.m4
# =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_boost_signals.html # =========================================================================== # # SYNOPSIS # # AX_BOOST_SIGNALS # # DESCRIPTION # # 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 # # LICENSE # # Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de> # Copyright (c) 2008 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 22 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]) BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'` if test "x$ax_boost_user_signals_lib" = "x"; then for libextension in `ls $BOOSTLIBDIR/libboost_signals*.so* $BOOSTLIBDIR/libboost_signals*.dylib* $BOOSTLIBDIR/libboost_signals*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_signals.*\)\.so.*$;\1;' -e 's;^lib\(boost_signals.*\)\.dylib.*$;\1;' -e 's;^lib\(boost_signals.*\)\.a.*$;\1;'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_SIGNALS_LIB="-l$ax_lib"; AC_SUBST(BOOST_SIGNALS_LIB) link_signals="yes"; break], [link_signals="no"]) done if test "x$link_signals" != "xyes"; then for libextension in `ls $BOOSTLIBDIR/boost_signals*.dll* $BOOSTLIBDIR/boost_signals*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_signals.*\)\.dll.*$;\1;' -e 's;^\(boost_signals.*\)\.a*$;\1;'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_SIGNALS_LIB="-l$ax_lib"; AC_SUBST(BOOST_SIGNALS_LIB) link_signals="yes"; break], [link_signals="no"]) done fi else for ax_lib in $ax_boost_user_signals_lib boost_signals-$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$ax_lib" = "x"; then AC_MSG_ERROR(Could not find a version of the library!) fi if test "x$link_signals" != "xyes"; then AC_MSG_ERROR(Could not link against $ax_lib !) fi fi CPPFLAGS="$CPPFLAGS_SAVED" LDFLAGS="$LDFLAGS_SAVED" fi ])