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# ===========================================================================
# http://autoconf-archive.cryp.to/ax_boost_base.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_BOOST_BASE([MINIMUM-VERSION])
#
# DESCRIPTION
#
# Test for the Boost C++ libraries of a particular version (or newer)
#
# If no path to the installed boost library is given the macro searchs
# under /usr, /usr/local, /opt and /opt/local and evaluates the
# $BOOST_ROOT environment variable. Further documentation is available at
# <http://randspringer.de/boost/index.html>.
#
# This macro calls:
#
# AC_SUBST(BOOST_CPPFLAGS) / AC_SUBST(BOOST_LDFLAGS)
#
# And sets:
#
# HAVE_BOOST
#
# LICENSE
#
# Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved.
AC_DEFUN([AX_BOOST_BASE],
[
AC_ARG_WITH([boost],
AS_HELP_STRING([--with-boost@<:@=DIR@:>@], [use boost (default is yes) - it is possible to specify the root directory for boost (optional)]),
[
if test "$withval" = "no"; then
want_boost="no"
elif test "$withval" = "yes"; then
want_boost="yes"
ac_boost_path=""
else
want_boost="yes"
ac_boost_path="$withval"
fi
],
[want_boost="yes"])
AC_ARG_WITH([boost-libdir],
AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
[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.]),
[
if test -d $withval
then
ac_boost_lib_path="$withval"
else
AC_MSG_ERROR(--with-boost-libdir expected directory name)
fi
],
[ac_boost_lib_path=""]
)
if test "x$want_boost" = "xyes"; then
boost_lib_version_req=ifelse([$1], ,1.20.0,$1)
boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'`
boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'`
boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
if test "x$boost_lib_version_req_sub_minor" = "x" ; then
boost_lib_version_req_sub_minor="0"
fi
WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+ $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor`
AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req)
succeeded=no
dnl first we check the system location for boost libraries
dnl this location ist chosen if boost libraries are installed with the --layout=system option
dnl or if you install boost with RPM
if test "$ac_boost_path" != ""; then
BOOST_LDFLAGS="-L$ac_boost_path/lib"
BOOST_CPPFLAGS="-I$ac_boost_path/include"
else
for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then
BOOST_LDFLAGS="-L$ac_boost_path_tmp/lib"
BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include"
break;
fi
done
fi
dnl overwrite ld flags if we have required special directory with
dnl --with-boost-libdir parameter
if test "$ac_boost_lib_path" != ""; then
BOOST_LDFLAGS="-L$ac_boost_lib_path"
fi
CPPFLAGS_SAVED="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
export CPPFLAGS
LDFLAGS_SAVED="$LDFLAGS"
LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
export LDFLAGS
AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
@%:@include <boost/version.hpp>
]], [[
#if BOOST_VERSION >= $WANT_BOOST_VERSION
// Everything is okay
#else
# error Boost version is too old
#endif
]])],[
AC_MSG_RESULT(yes)
succeeded=yes
found_system=yes
],[
])
AC_LANG_POP([C++])
dnl if we found no boost with system layout we search for boost libraries
dnl built and installed without the --layout=system option or for a staged(not installed) version
if test "x$succeeded" != "xyes"; then
_version=0
if test "$ac_boost_path" != ""; then
if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
_version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
V_CHECK=`expr $_version_tmp \> $_version`
if test "$V_CHECK" = "1" ; then
_version=$_version_tmp
fi
VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE"
done
fi
else
for ac_boost_path in /usr /usr/local /opt /opt/local ; do
if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
_version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
V_CHECK=`expr $_version_tmp \> $_version`
if test "$V_CHECK" = "1" ; then
_version=$_version_tmp
best_path=$ac_boost_path
fi
done
fi
done
VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
boost_major_version=`echo "$VERSION_UNDERSCORE" | sed 's/_//;s/_.*//'`
BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
if test "$ac_boost_lib_path" = ""
then
BOOST_LDFLAGS="-L$best_path/lib"
fi
if test "x$BOOST_ROOT" != "x"; then
if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/lib" && test -r "$BOOST_ROOT/stage/lib"; then
version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'`
stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'`
V_CHECK=`expr $stage_version_shorten \>\= $_version`
if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then
AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT)
BOOST_CPPFLAGS="-I$BOOST_ROOT"
BOOST_LDFLAGS="-L$BOOST_ROOT/stage/lib"
fi
fi
fi
fi
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
export CPPFLAGS
LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
export LDFLAGS
AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
@%:@include <boost/version.hpp>
]], [[
#if BOOST_VERSION >= $WANT_BOOST_VERSION
// Everything is okay
#else
# error Boost version is too old
#endif
]])],[
AC_MSG_RESULT(yes)
succeeded=yes
found_system=yes
],[
])
AC_LANG_POP([C++])
fi
if test "$succeeded" != "yes" ; then
if test "$_version" = "0" ; then
AC_MSG_ERROR([[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.]])
else
AC_MSG_NOTICE([Your boost libraries seem to old (version $_version).])
fi
else
AC_SUBST(BOOST_CPPFLAGS)
AC_SUBST(BOOST_LDFLAGS)
AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available])
fi
CPPFLAGS="$CPPFLAGS_SAVED"
LDFLAGS="$LDFLAGS_SAVED"
fi
])
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