folly/m4/ax_boost_base.m4

   1 # ===========================================================================
   2 #       http://www.gnu.org/software/autoconf-archive/ax_boost_base.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_BOOST_BASE([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
   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 #   $BOOST_ROOT environment variable. Further documentation is available at
  16 #   <http://randspringer.de/boost/index.html>.
  17 #
  18 #   This macro calls:
  19 #
  20 #     AC_SUBST(BOOST_CPPFLAGS) / AC_SUBST(BOOST_LDFLAGS)
  21 #
  22 #   And sets:
  23 #
  24 #     HAVE_BOOST
  25 #
  26 # LICENSE
  27 #
  28 #   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
  29 #   Copyright (c) 2009 Peter Adolphs
  30 #
  31 #   Copying and distribution of this file, with or without modification, are
  32 #   permitted in any medium without royalty provided the copyright notice
  33 #   and this notice are preserved. This file is offered as-is, without any
  34 #   warranty.
  35
  36 #serial 23
  37
  38 AC_DEFUN([AX_BOOST_BASE],
  39 [
  40 AC_ARG_WITH([boost],
  41   [AS_HELP_STRING([--with-boost@<:@=ARG@:>@],
  42     [use Boost library from a standard location (ARG=yes),
  43      from the specified location (ARG=<path>),
  44      or disable it (ARG=no)
  45      @<:@ARG=yes@:>@ ])],
  46     [
  47     if test "$withval" = "no"; then
  48         want_boost="no"
  49     elif test "$withval" = "yes"; then
  50         want_boost="yes"
  51         ac_boost_path=""
  52     else
  53         want_boost="yes"
  54         ac_boost_path="$withval"
  55     fi
  56     ],
  57     [want_boost="yes"])
  58
  59
  60 AC_ARG_WITH([boost-libdir],
  61         AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
  62         [Force given directory for boost libraries. Note that this will override library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]),
  63         [
  64         if test -d "$withval"
  65         then
  66                 ac_boost_lib_path="$withval"
  67         else
  68                 AC_MSG_ERROR(--with-boost-libdir expected directory name)
  69         fi
  70         ],
  71         [ac_boost_lib_path=""]
  72 )
  73
  74 if test "x$want_boost" = "xyes"; then
  75     boost_lib_version_req=ifelse([$1], ,1.20.0,$1)
  76     boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'`
  77     boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'`
  78     boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
  79     boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
  80     if test "x$boost_lib_version_req_sub_minor" = "x" ; then
  81         boost_lib_version_req_sub_minor="0"
  82         fi
  83     WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+  $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor`
  84     AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req)
  85     succeeded=no
  86
  87     dnl On 64-bit systems check for system libraries in both lib64 and lib.
  88     dnl The former is specified by FHS, but e.g. Debian does not adhere to
  89     dnl this (as it rises problems for generic multi-arch support).
  90     dnl The last entry in the list is chosen by default when no libraries
  91     dnl are found, e.g. when only header-only libraries are installed!
  92     libsubdirs="lib"
  93     ax_arch=`uname -m`
  94     case $ax_arch in
  95       x86_64|ppc64|s390x|sparc64|aarch64)
  96         libsubdirs="lib64 lib lib64"
  97         ;;
  98     esac
  99
 100     dnl allow for real multi-arch paths e.g. /usr/lib/x86_64-linux-gnu. Give
 101     dnl them priority over the other paths since, if libs are found there, they
 102     dnl are almost assuredly the ones desired.
 103     AC_REQUIRE([AC_CANONICAL_HOST])
 104     libsubdirs="lib/${host_cpu}-${host_os} $libsubdirs"
 105
 106     case ${host_cpu} in
 107       i?86)
 108         libsubdirs="lib/i386-${host_os} $libsubdirs"
 109         ;;
 110     esac
 111
 112     dnl first we check the system location for boost libraries
 113     dnl this location ist chosen if boost libraries are installed with the --layout=system option
 114     dnl or if you install boost with RPM
 115     if test "$ac_boost_path" != ""; then
 116         BOOST_CPPFLAGS="-I$ac_boost_path/include"
 117         for ac_boost_path_tmp in $libsubdirs; do
 118                 if test -d "$ac_boost_path"/"$ac_boost_path_tmp" ; then
 119                         BOOST_LDFLAGS="-L$ac_boost_path/$ac_boost_path_tmp"
 120                         break
 121                 fi
 122         done
 123     elif test "$cross_compiling" != yes; then
 124         for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
 125             if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then
 126                 for libsubdir in $libsubdirs ; do
 127                     if ls "$ac_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
 128                 done
 129                 BOOST_LDFLAGS="-L$ac_boost_path_tmp/$libsubdir"
 130                 BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include"
 131                 break;
 132             fi
 133         done
 134     fi
 135
 136     dnl overwrite ld flags if we have required special directory with
 137     dnl --with-boost-libdir parameter
 138     if test "$ac_boost_lib_path" != ""; then
 139        BOOST_LDFLAGS="-L$ac_boost_lib_path"
 140     fi
 141
 142     CPPFLAGS_SAVED="$CPPFLAGS"
 143     CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
 144     export CPPFLAGS
 145
 146     LDFLAGS_SAVED="$LDFLAGS"
 147     LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
 148     export LDFLAGS
 149
 150     AC_REQUIRE([AC_PROG_CXX])
 151     AC_LANG_PUSH(C++)
 152         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 153     @%:@include <boost/version.hpp>
 154     ]], [[
 155     #if BOOST_VERSION >= $WANT_BOOST_VERSION
 156     // Everything is okay
 157     #else
 158     #  error Boost version is too old
 159     #endif
 160     ]])],[
 161         AC_MSG_RESULT(yes)
 162     succeeded=yes
 163     found_system=yes
 164         ],[
 165         ])
 166     AC_LANG_POP([C++])
 167
 168
 169
 170     dnl if we found no boost with system layout we search for boost libraries
 171     dnl built and installed without the --layout=system option or for a staged(not installed) version
 172     if test "x$succeeded" != "xyes"; then
 173         _version=0
 174         if test "$ac_boost_path" != ""; then
 175             if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
 176                 for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
 177                     _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
 178                     V_CHECK=`expr $_version_tmp \> $_version`
 179                     if test "$V_CHECK" = "1" ; then
 180                         _version=$_version_tmp
 181                     fi
 182                     VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
 183                     BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE"
 184                 done
 185             fi
 186         else
 187             if test "$cross_compiling" != yes; then
 188                 for ac_boost_path in /usr /usr/local /opt /opt/local ; do
 189                     if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
 190                         for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
 191                             _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
 192                             V_CHECK=`expr $_version_tmp \> $_version`
 193                             if test "$V_CHECK" = "1" ; then
 194                                 _version=$_version_tmp
 195                                 best_path=$ac_boost_path
 196                             fi
 197                         done
 198                     fi
 199                 done
 200
 201                 VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
 202                 BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
 203                 if test "$ac_boost_lib_path" = ""; then
 204                     for libsubdir in $libsubdirs ; do
 205                         if ls "$best_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
 206                     done
 207                     BOOST_LDFLAGS="-L$best_path/$libsubdir"
 208                 fi
 209             fi
 210
 211             if test "x$BOOST_ROOT" != "x"; then
 212                 for libsubdir in $libsubdirs ; do
 213                     if ls "$BOOST_ROOT/stage/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
 214                 done
 215                 if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/$libsubdir" && test -r "$BOOST_ROOT/stage/$libsubdir"; then
 216                     version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'`
 217                     stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
 218                         stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'`
 219                     V_CHECK=`expr $stage_version_shorten \>\= $_version`
 220                     if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then
 221                         AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT)
 222                         BOOST_CPPFLAGS="-I$BOOST_ROOT"
 223                         BOOST_LDFLAGS="-L$BOOST_ROOT/stage/$libsubdir"
 224                     fi
 225                 fi
 226             fi
 227         fi
 228
 229         CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
 230         export CPPFLAGS
 231         LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
 232         export LDFLAGS
 233
 234         AC_LANG_PUSH(C++)
 235             AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 236         @%:@include <boost/version.hpp>
 237         ]], [[
 238         #if BOOST_VERSION >= $WANT_BOOST_VERSION
 239         // Everything is okay
 240         #else
 241         #  error Boost version is too old
 242         #endif
 243         ]])],[
 244             AC_MSG_RESULT(yes)
 245         succeeded=yes
 246         found_system=yes
 247             ],[
 248             ])
 249         AC_LANG_POP([C++])
 250     fi
 251
 252     if test "$succeeded" != "yes" ; then
 253         if test "$_version" = "0" ; then
 254             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.]])
 255         else
 256             AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).])
 257         fi
 258         # execute ACTION-IF-NOT-FOUND (if present):
 259         ifelse([$3], , :, [$3])
 260     else
 261         AC_SUBST(BOOST_CPPFLAGS)
 262         AC_SUBST(BOOST_LDFLAGS)
 263         AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available])
 264         # execute ACTION-IF-FOUND (if present):
 265         ifelse([$2], , :, [$2])
 266     fi
 267
 268     CPPFLAGS="$CPPFLAGS_SAVED"
 269     LDFLAGS="$LDFLAGS_SAVED"
 270 fi
 271
 272 ])