folly/m4/ax_boost_thread.m4

   1 # ===========================================================================
   2 #      http://www.gnu.org/software/autoconf-archive/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 # LICENSE
  24 #
  25 #   Copyright (c) 2009 Thomas Porschberg <thomas@randspringer.de>
  26 #   Copyright (c) 2009 Michael Tindal
  27 #
  28 #   Copying and distribution of this file, with or without modification, are
  29 #   permitted in any medium without royalty provided the copyright notice
  30 #   and this notice are preserved. This file is offered as-is, without any
  31 #   warranty.
  32
  33 #serial 27
  34
  35 AC_DEFUN([AX_BOOST_THREAD],
  36 [
  37         AC_ARG_WITH([boost-thread],
  38         AS_HELP_STRING([--with-boost-thread@<:@=special-lib@:>@],
  39                    [use the Thread library from boost - it is possible to specify a certain library for the linker
  40                         e.g. --with-boost-thread=boost_thread-gcc-mt ]),
  41         [
  42         if test "$withval" = "no"; then
  43                         want_boost="no"
  44         elif test "$withval" = "yes"; then
  45             want_boost="yes"
  46             ax_boost_user_thread_lib=""
  47         else
  48                     want_boost="yes"
  49                 ax_boost_user_thread_lib="$withval"
  50                 fi
  51         ],
  52         [want_boost="yes"]
  53         )
  54
  55         if test "x$want_boost" = "xyes"; then
  56         AC_REQUIRE([AC_PROG_CC])
  57         AC_REQUIRE([AC_CANONICAL_BUILD])
  58                 CPPFLAGS_SAVED="$CPPFLAGS"
  59                 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
  60                 export CPPFLAGS
  61
  62                 LDFLAGS_SAVED="$LDFLAGS"
  63                 LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
  64                 export LDFLAGS
  65
  66         AC_CACHE_CHECK(whether the Boost::Thread library is available,
  67                                            ax_cv_boost_thread,
  68         [AC_LANG_PUSH([C++])
  69                          CXXFLAGS_SAVE=$CXXFLAGS
  70
  71                          if test "x$host_os" = "xsolaris" ; then
  72                                  CXXFLAGS="-pthreads $CXXFLAGS"
  73                          elif test "x$host_os" = "xmingw32" ; then
  74                                  CXXFLAGS="-mthreads $CXXFLAGS"
  75                          else
  76                                 CXXFLAGS="-pthread $CXXFLAGS"
  77                          fi
  78                          AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/thread/thread.hpp>]],
  79                                    [[boost::thread_group thrds;
  80                                    return 0;]])],
  81                    ax_cv_boost_thread=yes, ax_cv_boost_thread=no)
  82                          CXXFLAGS=$CXXFLAGS_SAVE
  83              AC_LANG_POP([C++])
  84                 ])
  85                 if test "x$ax_cv_boost_thread" = "xyes"; then
  86            if test "x$host_os" = "xsolaris" ; then
  87                           BOOST_CPPFLAGS="-pthreads $BOOST_CPPFLAGS"
  88                    elif test "x$host_os" = "xmingw32" ; then
  89                           BOOST_CPPFLAGS="-mthreads $BOOST_CPPFLAGS"
  90                    else
  91                           BOOST_CPPFLAGS="-pthread $BOOST_CPPFLAGS"
  92                    fi
  93
  94                         AC_SUBST(BOOST_CPPFLAGS)
  95
  96                         AC_DEFINE(HAVE_BOOST_THREAD,,[define if the Boost::Thread library is available])
  97             BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
  98
  99                         LDFLAGS_SAVE=$LDFLAGS
 100                         case "x$host_os" in
 101                           *bsd* )
 102                                LDFLAGS="-pthread $LDFLAGS"
 103                           break;
 104                           ;;
 105                         esac
 106             if test "x$ax_boost_user_thread_lib" = "x"; then
 107                 for libextension in `ls -r $BOOSTLIBDIR/libboost_thread* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'`; do
 108                      ax_lib=${libextension}
 109                                     AC_CHECK_LIB($ax_lib, exit,
 110                                  [BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
 111                                  [link_thread="no"])
 112                                 done
 113                 if test "x$link_thread" != "xyes"; then
 114                 for libextension in `ls -r $BOOSTLIBDIR/boost_thread* 2>/dev/null | sed 's,.*/,,' | sed 's,\..*,,'`; do
 115                      ax_lib=${libextension}
 116                                     AC_CHECK_LIB($ax_lib, exit,
 117                                  [BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
 118                                  [link_thread="no"])
 119                                 done
 120                 fi
 121
 122             else
 123                for ax_lib in $ax_boost_user_thread_lib boost_thread-$ax_boost_user_thread_lib; do
 124                                       AC_CHECK_LIB($ax_lib, exit,
 125                                    [BOOST_THREAD_LIB="-l$ax_lib"; AC_SUBST(BOOST_THREAD_LIB) link_thread="yes"; break],
 126                                    [link_thread="no"])
 127                   done
 128
 129             fi
 130             if test "x$ax_lib" = "x"; then
 131                 AC_MSG_ERROR(Could not find a version of the library!)
 132             fi
 133                         if test "x$link_thread" = "xno"; then
 134                                 AC_MSG_ERROR(Could not link against $ax_lib !)
 135                         else
 136                            case "x$host_os" in
 137                               *bsd* )
 138                                 BOOST_LDFLAGS="-pthread $BOOST_LDFLAGS"
 139                               break;
 140                               ;;
 141                            esac
 142
 143                         fi
 144                 fi
 145
 146                 CPPFLAGS="$CPPFLAGS_SAVED"
 147         LDFLAGS="$LDFLAGS_SAVED"
 148         fi
 149 ])