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ax_boost_chrono.m4
# =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_boost_chrono.html # =========================================================================== # # SYNOPSIS # # AX_BOOST_CHRONO # # DESCRIPTION # # Test for Chrono 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_CHRONO_LIB) # # And sets: # # HAVE_BOOST_CHRONO # # LICENSE # # Copyright (c) 2012 Xiyue Deng <manphiz@gmail.com> # # 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 3 AC_DEFUN([AX_BOOST_CHRONO], [ AC_ARG_WITH([boost-chrono], AS_HELP_STRING([--with-boost-chrono@<:@=special-lib@:>@], [use the Chrono library from boost - it is possible to specify a certain library for the linker e.g. --with-boost-chrono=boost_chrono-gcc-mt ]), [ if test "$withval" = "no"; then want_boost="no" elif test "$withval" = "yes"; then want_boost="yes" ax_boost_user_chrono_lib="" else want_boost="yes" ax_boost_user_chrono_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 $BOOST_LDFLAGS" export LDFLAGS AC_CACHE_CHECK(whether the Boost::Chrono library is available, ax_cv_boost_chrono, [AC_LANG_PUSH([C++]) CXXFLAGS_SAVE=$CXXFLAGS AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/chrono.hpp>]], [[boost::chrono::system_clock::time_point time;]])], ax_cv_boost_chrono=yes, ax_cv_boost_chrono=no) CXXFLAGS=$CXXFLAGS_SAVE AC_LANG_POP([C++]) ]) if test "x$ax_cv_boost_chrono" = "xyes"; then AC_SUBST(BOOST_CPPFLAGS) AC_DEFINE(HAVE_BOOST_CHRONO,,[define if the Boost::Chrono library is available]) BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'` LDFLAGS_SAVE=$LDFLAGS if test "x$ax_boost_user_chrono_lib" = "x"; then for libextension in `ls $BOOSTLIBDIR/libboost_chrono*.so* $BOOSTLIBDIR/libboost_chrono*.dylib* $BOOSTLIBDIR/libboost_chrono*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_chrono.*\)\.so.*$;\1;' -e 's;^lib\(boost_chrono.*\)\.dylib.*$;\1;' -e 's;^lib\(boost_chrono.*\)\.a.*$;\1;'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_CHRONO_LIB="-l$ax_lib"; AC_SUBST(BOOST_CHRONO_LIB) link_chrono="yes"; break], [link_chrono="no"]) done if test "x$link_chrono" != "xyes"; then for libextension in `ls $BOOSTLIBDIR/boost_chrono*.dll* $BOOSTLIBDIR/boost_chrono*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_chrono.*\)\.dll.*$;\1;' -e 's;^\(boost_chrono.*\)\.a.*$;\1;'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_CHRONO_LIB="-l$ax_lib"; AC_SUBST(BOOST_CHRONO_LIB) link_chrono="yes"; break], [link_chrono="no"]) done fi else for ax_lib in $ax_boost_user_chrono_lib boost_chrono-$ax_boost_user_chrono_lib; do AC_CHECK_LIB($ax_lib, exit, [BOOST_CHRONO_LIB="-l$ax_lib"; AC_SUBST(BOOST_CHRONO_LIB) link_chrono="yes"; break], [link_chrono="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_chrono" = "xno"; then AC_MSG_ERROR(Could not link against $ax_lib !) fi fi CPPFLAGS="$CPPFLAGS_SAVED" LDFLAGS="$LDFLAGS_SAVED" fi ])