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   1 # ===========================================================================
   2 #             http://autoconf-archive.cryp.to/ax_boost_base.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_BOOST_BASE([MINIMUM-VERSION])
   8 #
   9 # DESCRIPTION
  10 #
  11 #   Test for the Boost C++ libraries of a particular version (or newer)
  12 #
  13 #   If no path to the installed boost library is given the macro searchs
  14 #   under /usr, /usr/local, /opt and /opt/local and evaluates the
  15 #   $BOOST_ROOT environment variable. Further documentation is available at
  16 #   <http://randspringer.de/boost/index.html>.
  17 #
  18 #   This macro calls:
  19 #
  20 #     AC_SUBST(BOOST_CPPFLAGS) / AC_SUBST(BOOST_LDFLAGS)
  21 #
  22 #   And sets:
  23 #
  24 #     HAVE_BOOST
  25 #
  26 # LAST MODIFICATION
  27 #
  28 #   2008-04-12
  29 #
  30 # COPYLEFT
  31 #
  32 #   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
  33 #
  34 #   Copying and distribution of this file, with or without modification, are
  35 #   permitted in any medium without royalty provided the copyright notice
  36 #   and this notice are preserved.
  37
  38 AC_DEFUN([AX_BOOST_BASE],
  39 [
  40 AC_ARG_WITH([boost],
  41         AS_HELP_STRING([--with-boost@<:@=DIR@:>@], [use boost (default is yes) - it is possible to specify the root directory for boost (optional)]),
  42         [
  43     if test "$withval" = "no"; then
  44                 want_boost="no"
  45     elif test "$withval" = "yes"; then
  46         want_boost="yes"
  47         ac_boost_path=""
  48     else
  49             want_boost="yes"
  50         ac_boost_path="$withval"
  51         fi
  52     ],
  53     [want_boost="yes"])
  54
  55
  56 AC_ARG_WITH([boost-libdir],
  57         AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
  58         [Force given directory for boost libraries. Note that this will overwrite library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]),
  59         [
  60         if test -d $withval
  61         then
  62                 ac_boost_lib_path="$withval"
  63         else
  64                 AC_MSG_ERROR(--with-boost-libdir expected directory name)
  65         fi
  66         ],
  67         [ac_boost_lib_path=""]
  68 )
  69
  70 if test "x$want_boost" = "xyes"; then
  71         boost_lib_version_req=ifelse([$1], ,1.20.0,$1)
  72         boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'`
  73         boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'`
  74         boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
  75         boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
  76         if test "x$boost_lib_version_req_sub_minor" = "x" ; then
  77                 boost_lib_version_req_sub_minor="0"
  78         fi
  79         WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+  $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor`
  80         AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req)
  81         succeeded=no
  82
  83         dnl first we check the system location for boost libraries
  84         dnl this location ist chosen if boost libraries are installed with the --layout=system option
  85         dnl or if you install boost with RPM
  86         if test "$ac_boost_path" != ""; then
  87                 BOOST_LDFLAGS="-L$ac_boost_path/lib"
  88                 BOOST_CPPFLAGS="-I$ac_boost_path/include"
  89         elif test "$cross_compiling" != yes; then
  90                 for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
  91                         if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then
  92                                 BOOST_LDFLAGS="-L$ac_boost_path_tmp/lib"
  93                                 BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include"
  94                                 break;
  95                         fi
  96                 done
  97         fi
  98
  99     dnl overwrite ld flags if we have required special directory with
 100     dnl --with-boost-libdir parameter
 101     if test "$ac_boost_lib_path" != ""; then
 102        BOOST_LDFLAGS="-L$ac_boost_lib_path"
 103     fi
 104
 105         CPPFLAGS_SAVED="$CPPFLAGS"
 106         CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
 107         export CPPFLAGS
 108
 109         LDFLAGS_SAVED="$LDFLAGS"
 110         LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
 111         export LDFLAGS
 112
 113         AC_LANG_PUSH(C++)
 114         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 115         @%:@include <boost/version.hpp>
 116         ]], [[
 117         #if BOOST_VERSION >= $WANT_BOOST_VERSION
 118         // Everything is okay
 119         #else
 120         #  error Boost version is too old
 121         #endif
 122         ]])],[
 123         AC_MSG_RESULT(yes)
 124         succeeded=yes
 125         found_system=yes
 126         ],[
 127         ])
 128         AC_LANG_POP([C++])
 129
 130
 131
 132         dnl if we found no boost with system layout we search for boost libraries
 133         dnl built and installed without the --layout=system option or for a staged(not installed) version
 134         if test "x$succeeded" != "xyes"; then
 135                 _version=0
 136                 if test "$ac_boost_path" != ""; then
 137                         if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
 138                                 for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
 139                                         _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
 140                                         V_CHECK=`expr $_version_tmp \> $_version`
 141                                         if test "$V_CHECK" = "1" ; then
 142                                                 _version=$_version_tmp
 143                                         fi
 144                                         VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
 145                                         BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE"
 146                                 done
 147                         fi
 148                 else
 149                         if test "$cross_compiling" != yes; then
 150                                 for ac_boost_path in /usr /usr/local /opt /opt/local ; do
 151                                         if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
 152                                                 for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
 153                                                         _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
 154                                                         V_CHECK=`expr $_version_tmp \> $_version`
 155                                                         if test "$V_CHECK" = "1" ; then
 156                                                                 _version=$_version_tmp
 157                                                                 best_path=$ac_boost_path
 158                                                         fi
 159                                                 done
 160                                         fi
 161                                 done
 162
 163                                 VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
 164                                 BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
 165                                 if test "$ac_boost_lib_path" = ""
 166                                 then
 167                                         BOOST_LDFLAGS="-L$best_path/lib"
 168                                 fi
 169
 170                         fi
 171
 172                         if test "x$BOOST_ROOT" != "x"; then
 173                                 if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/lib" && test -r "$BOOST_ROOT/stage/lib"; then
 174                                         version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'`
 175                                         stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
 176                                         stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'`
 177                                         V_CHECK=`expr $stage_version_shorten \>\= $_version`
 178                     if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then
 179                                                 AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT)
 180                                                 BOOST_CPPFLAGS="-I$BOOST_ROOT"
 181                                                 BOOST_LDFLAGS="-L$BOOST_ROOT/stage/lib"
 182                                         fi
 183                                 fi
 184                         fi
 185                 fi
 186
 187                 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
 188                 export CPPFLAGS
 189                 LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
 190                 export LDFLAGS
 191
 192                 AC_LANG_PUSH(C++)
 193                 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 194                 @%:@include <boost/version.hpp>
 195                 ]], [[
 196                 #if BOOST_VERSION >= $WANT_BOOST_VERSION
 197                 // Everything is okay
 198                 #else
 199                 #  error Boost version is too old
 200                 #endif
 201                 ]])],[
 202                 AC_MSG_RESULT(yes)
 203                 succeeded=yes
 204                 found_system=yes
 205                 ],[
 206                 ])
 207                 AC_LANG_POP([C++])
 208         fi
 209
 210         if test "$succeeded" != "yes" ; then
 211                 if test "$_version" = "0" ; then
 212                         AC_MSG_NOTICE([[We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option.  If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation.]])
 213                 else
 214                         AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).])
 215                 fi
 216         HAVE_BOOST=no
 217         else
 218                 AC_SUBST(BOOST_CPPFLAGS)
 219                 AC_SUBST(BOOST_LDFLAGS)
 220                 AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available])
 221         HAVE_BOOST=yes
 222         fi
 223
 224         CPPFLAGS="$CPPFLAGS_SAVED"
 225         LDFLAGS="$LDFLAGS_SAVED"
 226 fi
 227
 228 ])