m4/ax_boost_asio-fixed.m4

   1 # ===========================================================================
   2 #             http://autoconf-archive.cryp.to/ax_boost_asio.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_BOOST_ASIO
   8 #
   9 # DESCRIPTION
  10 #
  11 #   Test for Asio library from the Boost C++ libraries. The macro requires a
  12 #   preceding call to AX_BOOST_BASE. Further documentation is available at
  13 #   <http://randspringer.de/boost/index.html>.
  14 #
  15 #   This macro calls:
  16 #
  17 #     AC_SUBST(BOOST_ASIO_LIB)
  18 #
  19 #   And sets:
  20 #
  21 #     HAVE_BOOST_ASIO
  22 #
  23 # LAST MODIFICATION
  24 #
  25 #   2008-04-12
  26 #
  27 # COPYLEFT
  28 #
  29 #   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
  30 #   Copyright (c) 2008 Pete Greenwell <pete@mu.org>
  31 #   Copyright (c) 2008 Roman Rybalko <libtorrent@romanr.info> (using BOOST_SYSTEM_LIB)
  32 #
  33 #   Copying and distribution of this file, with or without modification, are
  34 #   permitted in any medium without royalty provided the copyright notice
  35 #   and this notice are preserved.
  36
  37 AC_DEFUN([AX_BOOST_ASIO],
  38 [
  39         AC_ARG_WITH([boost-asio],
  40         AS_HELP_STRING([--with-boost-asio@<:@=special-lib@:>@],
  41                    [use the ASIO library from boost - it is possible to specify a certain library for the linker
  42                         e.g. --with-boost-asio=boost_system-gcc41-mt-1_34 ]),
  43         [
  44         if test "$withval" = "no"; then
  45                         want_boost="no"
  46         elif test "$withval" = "yes"; then
  47             want_boost="yes"
  48             ax_boost_user_asio_lib=""
  49         else
  50                     want_boost="yes"
  51                 ax_boost_user_asio_lib="$withval"
  52                 fi
  53         ],
  54         [want_boost="yes"]
  55         )
  56
  57         if test "x$want_boost" = "xyes"; then
  58         AC_REQUIRE([AC_PROG_CC])
  59                 CPPFLAGS_SAVED="$CPPFLAGS"
  60                 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
  61                 export CPPFLAGS
  62
  63                 LDFLAGS_SAVED="$LDFLAGS"
  64                 LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
  65                 export LDFLAGS
  66
  67         AC_CACHE_CHECK(whether the Boost::ASIO library is available,
  68                                            ax_cv_boost_asio,
  69         [AC_LANG_PUSH([C++])
  70                  AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[ @%:@include <boost/asio.hpp>
  71                                                                                         ]],
  72                                   [[
  73
  74                                     boost::asio::io_service io;
  75                                     boost::system::error_code timer_result;
  76                                     boost::asio::deadline_timer t(io);
  77                                     t.cancel();
  78                                     io.run_one();
  79                                                                         return 0;
  80                                    ]]),
  81                              ax_cv_boost_asio=yes, ax_cv_boost_asio=no)
  82          AC_LANG_POP([C++])
  83                 ])
  84                 if test "x$ax_cv_boost_asio" = "xyes"; then
  85                         AC_DEFINE(HAVE_BOOST_ASIO,,[define if the Boost::ASIO library is available])
  86                         BN=boost_system
  87                         BN2=`echo $BOOST_SYSTEM_LIB | sed 's/-l//'`
  88             if test "x$ax_boost_user_asio_lib" = "x"; then
  89                                 for ax_lib in $BN2 $BN $BN-$CC $BN-$CC-mt $BN-$CC-mt-s $BN-$CC-s \
  90                               lib$BN lib$BN-$CC lib$BN-$CC-mt lib$BN-$CC-mt-s lib$BN-$CC-s \
  91                               $BN-mgw $BN-mgw $BN-mgw-mt $BN-mgw-mt-s $BN-mgw-s ; do
  92                                     AC_CHECK_LIB($ax_lib, main, [BOOST_ASIO_LIB="-l$ax_lib" AC_SUBST(BOOST_ASIO_LIB) link_thread="yes" break],
  93                                  [link_thread="no"])
  94                                 done
  95             else
  96                for ax_lib in $ax_boost_user_asio_lib $BN-$ax_boost_user_asio_lib; do
  97                                       AC_CHECK_LIB($ax_lib, main,
  98                                    [BOOST_ASIO_LIB="-l$ax_lib" AC_SUBST(BOOST_ASIO_LIB) link_asio="yes" break],
  99                                    [link_asio="no"])
 100                   done
 101
 102             fi
 103                         if test "x$link_asio" = "xno"; then
 104                                 AC_MSG_ERROR(Could not link against $ax_lib !)
 105                         fi
 106                 fi
 107
 108                 CPPFLAGS="$CPPFLAGS_SAVED"
 109         LDFLAGS="$LDFLAGS_SAVED"
 110         fi
 111 ])