m4/ax_boost_system.m4

   1 # ===========================================================================
   2 #     https://www.gnu.org/software/autoconf-archive/ax_boost_system.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_BOOST_SYSTEM
   8 #
   9 # DESCRIPTION
  10 #
  11 #   Test for System 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_SYSTEM_LIB)
  18 #
  19 #   And sets:
  20 #
  21 #     HAVE_BOOST_SYSTEM
  22 #
  23 # LICENSE
  24 #
  25 #   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
  26 #   Copyright (c) 2008 Michael Tindal
  27 #   Copyright (c) 2008 Daniel Casimiro <dan.casimiro@gmail.com>
  28 #
  29 #   Copying and distribution of this file, with or without modification, are
  30 #   permitted in any medium without royalty provided the copyright notice
  31 #   and this notice are preserved. This file is offered as-is, without any
  32 #   warranty.
  33
  34 #serial 20
  35
  36 AC_DEFUN([AX_BOOST_SYSTEM],
  37 [
  38         AC_ARG_WITH([boost-system],
  39         AS_HELP_STRING([--with-boost-system@<:@=special-lib@:>@],
  40                    [use the System library from boost - it is possible to specify a certain library for the linker
  41                         e.g. --with-boost-system=boost_system-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_system_lib=""
  48         else
  49                     want_boost="yes"
  50                 ax_boost_user_system_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 $BOOST_LDFLAGS"
  65                 export LDFLAGS
  66
  67         AC_CACHE_CHECK(whether the Boost::System library is available,
  68                                            ax_cv_boost_system,
  69         [AC_LANG_PUSH([C++])
  70                          CXXFLAGS_SAVE=$CXXFLAGS
  71                          CXXFLAGS=
  72
  73                          AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/system/error_code.hpp>]],
  74                                     [[boost::system::error_category *a = 0;]])],
  75                    ax_cv_boost_system=yes, ax_cv_boost_system=no)
  76                          CXXFLAGS=$CXXFLAGS_SAVE
  77              AC_LANG_POP([C++])
  78                 ])
  79                 if test "x$ax_cv_boost_system" = "xyes"; then
  80                         AC_SUBST(BOOST_CPPFLAGS)
  81
  82                         AC_DEFINE(HAVE_BOOST_SYSTEM,,[define if the Boost::System library is available])
  83             BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
  84
  85                         LDFLAGS_SAVE=$LDFLAGS
  86             if test "x$ax_boost_user_system_lib" = "x"; then
  87                 for libextension in `ls -r $BOOSTLIBDIR/libboost_system* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'` ; do
  88                      ax_lib=${libextension}
  89                                     AC_CHECK_LIB($ax_lib, exit,
  90                                  [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break],
  91                                  [link_system="no"])
  92                                 done
  93                 if test "x$link_system" != "xyes"; then
  94                 for libextension in `ls -r $BOOSTLIBDIR/boost_system* 2>/dev/null | sed 's,.*/,,' | sed -e 's,\..*,,'` ; do
  95                      ax_lib=${libextension}
  96                                     AC_CHECK_LIB($ax_lib, exit,
  97                                  [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break],
  98                                  [link_system="no"])
  99                                 done
 100                 fi
 101
 102             else
 103                for ax_lib in $ax_boost_user_system_lib boost_system-$ax_boost_user_system_lib; do
 104                                       AC_CHECK_LIB($ax_lib, exit,
 105                                    [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break],
 106                                    [link_system="no"])
 107                   done
 108
 109             fi
 110             if test "x$ax_lib" = "x"; then
 111                 AC_MSG_ERROR(Could not find a version of the Boost::System library!)
 112             fi
 113                         if test "x$link_system" = "xno"; then
 114                                 AC_MSG_ERROR(Could not link against $ax_lib !)
 115                         fi
 116                 fi
 117
 118                 CPPFLAGS="$CPPFLAGS_SAVED"
 119         LDFLAGS="$LDFLAGS_SAVED"
 120         fi
 121 ])