m4/ax_boost_thread.m4

   1 # ===========================================================================
   2 #            http://autoconf-archive.cryp.to/ax_boost_thread.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_BOOST_THREAD
   8 #
   9 # DESCRIPTION
  10 #
  11 #   Test for Thread library from the Boost C++ libraries. The macro requires
  12 #   a 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_THREAD_LIB)
  18 #
  19 #   And sets:
  20 #
  21 #     HAVE_BOOST_THREAD
  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 Michael Tindal
  31 #
  32 #   Copying and distribution of this file, with or without modification, are
  33 #   permitted in any medium without royalty provided the copyright notice
  34 #   and this notice are preserved.
  35
  36 AC_DEFUN([AX_BOOST_THREAD],
  37 [
  38         AC_ARG_WITH([boost-thread],
  39         AS_HELP_STRING([--with-boost-thread@<:@=special-lib@:>@],
  40                    [use the Thread library from boost - it is possible to specify a certain library for the linker
  41                         e.g. --with-boost-thread=boost_thread-gcc-mt ]),
  42         [
  43         if test "$withval" = "no"; then
  44                         want_boost="no"
  45         elif test "$withval" = "yes"; then
  46             want_boost="yes"
  47             ax_boost_user_thread_lib=""
  48         else
  49                     want_boost="yes"
  50                 ax_boost_user_thread_lib="$withval"
  51                 fi
  52         ],
  53         [want_boost="yes"]
  54         )
  55
  56         if test "x$want_boost" = "xyes"; then
  57         AC_REQUIRE([AC_PROG_CC])
  58         AC_REQUIRE([AC_CANONICAL_BUILD])
  59                 CPPFLAGS_SAVED="$CPPFLAGS"
  60                 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
  61                 export CPPFLAGS
  62
  63                 LDFLAGS_SAVED="$LDFLAGS"
  64                 LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
  65                 export LDFLAGS
  66
  67         AC_CACHE_CHECK(whether the Boost::Thread library is available,
  68                                            ax_cv_boost_thread,
  69         [AC_LANG_PUSH([C++])
  70                          CXXFLAGS_SAVE=$CXXFLAGS
  71
  72                          if test "x$build_os" = "xsolaris" ; then
  73                                  CXXFLAGS="-pthreads $CXXFLAGS"
  74                          elif test "x$build_os" = "xming32" ; then
  75                                  CXXFLAGS="-mthreads $CXXFLAGS"
  76                          else
  77                                 CXXFLAGS="-pthread $CXXFLAGS"
  78                          fi
  79                          AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[@%:@include <boost/thread/thread.hpp>]],
  80                                    [[boost::thread_group thrds;
  81                                    return 0;]]),
  82                    ax_cv_boost_thread=yes, ax_cv_boost_thread=no)
  83                          CXXFLAGS=$CXXFLAGS_SAVE
  84              AC_LANG_POP([C++])
  85                 ])
  86                 if test "x$ax_cv_boost_thread" = "xyes"; then
  87            if test "x$build_os" = "xsolaris" ; then
  88                           BOOST_CPPFLAGS="-pthreads $BOOST_CPPFLAGS"
  89                    elif test "x$build_os" = "xming32" ; then
  90                           BOOST_CPPFLAGS="-mthreads $BOOST_CPPFLAGS"
  91                    else
  92                           BOOST_CPPFLAGS="-pthread $BOOST_CPPFLAGS"
  93                    fi
  94
  95                         AC_SUBST(BOOST_CPPFLAGS)
  96
  97                         AC_DEFINE(HAVE_BOOST_THREAD,,[define if the Boost::Thread library is available])
  98             BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
  99
 100                         LDFLAGS_SAVE=$LDFLAGS
 101                         case "x$build_os" in
 102                           *bsd* )
 103                                LDFLAGS="-pthread $LDFLAGS"
 104                           break;
 105                           ;;
 106                         esac
 107             if test "x$ax_boost_user_thread_lib" = "x"; then
 108                 for libextension in `ls $BOOSTLIBDIR/libboost_thread*.{so,a}* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_thread.*\)\.so.*$;\1;' -e 's;^lib\(boost_thread.*\)\.a*$;\1;'` ; do
 109                      ax_lib=${libextension}
 110                                     AC_CHECK_LIB($ax_lib, exit,
 111                                  [BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
 112                                  [link_thread="no"])
 113                                 done
 114                 if test "x$link_thread" != "xyes"; then
 115                 for libextension in `ls $BOOSTLIBDIR/boost_thread*.{dll,a}* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_thread.*\)\.dll.*$;\1;' -e 's;^\(boost_thread.*\)\.a*$;\1;'` ; do
 116                      ax_lib=${libextension}
 117                                     AC_CHECK_LIB($ax_lib, exit,
 118                                  [BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
 119                                  [link_thread="no"])
 120                                 done
 121                 fi
 122
 123             else
 124                for ax_lib in $ax_boost_user_thread_lib boost_thread-$ax_boost_user_thread_lib; do
 125                                       AC_CHECK_LIB($ax_lib, exit,
 126                                    [BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
 127                                    [link_thread="no"])
 128                   done
 129
 130             fi
 131                         if test "x$link_thread" = "xno"; then
 132                                 AC_MSG_ERROR(Could not link against $ax_lib !)
 133                         else
 134                            case "x$build_os" in
 135                               *bsd* )
 136                                 BOOST_LDFLAGS="-pthread $BOOST_LDFLAGS"
 137                               break;
 138                               ;;
 139                            esac
 140
 141                         fi
 142                 fi
 143
 144                 CPPFLAGS="$CPPFLAGS_SAVED"
 145         LDFLAGS="$LDFLAGS_SAVED"
 146         fi
 147 ])