Differential D1869 Diff 5260 build-aux/m4/ax_boost_chrono.m4

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build-aux/m4/ax_boost_chrono.m4

# ===========================================================================		# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_boost_chrono.html		# https://www.gnu.org/software/autoconf-archive/ax_boost_chrono.html
# ===========================================================================		# ===========================================================================
#		#
# SYNOPSIS		# SYNOPSIS
#		#
# AX_BOOST_CHRONO		# AX_BOOST_CHRONO
#		#
# DESCRIPTION		# DESCRIPTION
#		#
# Test for System library from the Boost C++ libraries. The macro requires		# Test for Chrono library from the Boost C++ libraries. The macro requires
# a preceding call to AX_BOOST_BASE. Further documentation is available at		# a preceding call to AX_BOOST_BASE. Further documentation is available at
# <http://randspringer.de/boost/index.html>.		# <http://randspringer.de/boost/index.html>.
#		#
# This macro calls:		# This macro calls:
#		#
# AC_SUBST(BOOST_CHRONO_LIB)		# AC_SUBST(BOOST_CHRONO_LIB)
#		#
# And sets:		# And sets:
#		#
# HAVE_BOOST_CHRONO		# HAVE_BOOST_CHRONO
#		#
# LICENSE		# LICENSE
#		#
# Copyright (c) 2012 Xiyue Deng <manphiz@gmail.com>		# Copyright (c) 2012 Xiyue Deng <manphiz@gmail.com>
#		#
# Copying and distribution of this file, with or without modification, are		# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice		# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any		# and this notice are preserved. This file is offered as-is, without any
# warranty.		# warranty.

#serial 1		#serial 4

AC_DEFUN([AX_BOOST_CHRONO],		AC_DEFUN([AX_BOOST_CHRONO],
[		[
AC_ARG_WITH([boost-chrono],		AC_ARG_WITH([boost-chrono],
AS_HELP_STRING([--with-boost-chrono@<:@=special-lib@:>@],		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		[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 ]),		e.g. --with-boost-chrono=boost_chrono-gcc-mt ]),
[		[
Show All 22 Lines	if test "x$want_boost" = "xyes"; then
export LDFLAGS		export LDFLAGS

AC_CACHE_CHECK(whether the Boost::Chrono library is available,		AC_CACHE_CHECK(whether the Boost::Chrono library is available,
ax_cv_boost_chrono,		ax_cv_boost_chrono,
[AC_LANG_PUSH([C++])		[AC_LANG_PUSH([C++])
CXXFLAGS_SAVE=$CXXFLAGS		CXXFLAGS_SAVE=$CXXFLAGS

AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/chrono.hpp>]],		AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/chrono.hpp>]],
[[boost::chrono::system_clock::time_point time;]])],		[[boost::chrono::system_clock::time_point* time = new boost::chrono::system_clock::time_point; delete time;]])],
ax_cv_boost_chrono=yes, ax_cv_boost_chrono=no)		ax_cv_boost_chrono=yes, ax_cv_boost_chrono=no)
CXXFLAGS=$CXXFLAGS_SAVE		CXXFLAGS=$CXXFLAGS_SAVE
AC_LANG_POP([C++])		AC_LANG_POP([C++])
])		])
if test "x$ax_cv_boost_chrono" = "xyes"; then		if test "x$ax_cv_boost_chrono" = "xyes"; then
AC_SUBST(BOOST_CPPFLAGS)		AC_SUBST(BOOST_CPPFLAGS)

AC_DEFINE(HAVE_BOOST_CHRONO,,[define if the Boost::Chrono library is available])		AC_DEFINE(HAVE_BOOST_CHRONO,,[define if the Boost::Chrono library is available])
Show All 38 Lines