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   2 dnl Copyright 2004,2005 Free Software Foundation, Inc.
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  13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 dnl GNU General Public License for more details.
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  18 dnl the Free Software Foundation, Inc., 51 Franklin Street,
  19 dnl Boston, MA 02110-1301, USA.
  20 dnl
  21
  22 dnl This tries to do the "right thing" to locate the boost include files.
  23 dnl If the user explicitly specified --with-boost-include-dir=<foo>
  24 dnl we believe them and use it.  Otherwise,
  25 dnl
  26 dnl We look for boost/shared_ptr.hpp in the "normal places".  That is,
  27 dnl wherever AC_CHECK_HEADER looks.  If the boost includes are in /usr/local/include
  28 dnl this step will find them.
  29 dnl
  30 dnl Otherwise, we check to see if the boost stuff was installed in a version-specific
  31 dnl directory under /usr/local/include.  These look like: /usr/local/include/boost-1_33_1
  32 dnl If there's more than one version installed, we select the
  33 dnl lexicographically greatest one.
  34 dnl
  35 dnl If none of these work, we bail.
  36
  37 AC_DEFUN([GR_REQUIRE_BOOST_INCLUDES],
  38 [
  39   AC_LANG_PUSH(C++)
  40   gr_boost_include_dir=
  41   AC_ARG_WITH([boost-include-dir],
  42     AC_HELP_STRING([--with-boost-include-dir=<path>],
  43                    [path to boost c++ include files]),
  44     [
  45       # "yes" and "no" are bogus answers
  46       if test x"$with_boost_include_dir" == xyes ||
  47          test x"$with_boost_include_dir" == xno; then
  48         gr_boost_include_dir=
  49       else
  50         gr_boost_include_dir=$with_boost_include_dir
  51       fi
  52     ])
  53   echo "gr_boost_include_dir = $gr_boost_include_dir"
  54   if test x$gr_boost_include_dir != x; then
  55     #
  56     # If the user specified a directory, then we use it
  57     #
  58     OLD_CPPFLAGS=$CPPFLAGS
  59     CPPFLAGS="$CPPFLAGS -I$gr_boost_include_dir"
  60     AC_CHECK_HEADER([boost/shared_ptr.hpp],
  61       [BOOST_CFLAGS="-I$gr_boost_include_dir"],
  62       [AC_MSG_ERROR(
  63         [Failed to locate boost/shared_ptr.hpp.
  64 Try using --with-boost-include-dir=<path>,
  65 E.g., --with-boost-include-dir=/usr/local/include/boost-1_33_1])])
  66     CPPFLAGS=$OLD_CPPFLAGS
  67   else
  68     #
  69     # Otherwise we check in the default places
  70     #
  71     AC_CHECK_HEADER([boost/shared_ptr.hpp],
  72       [BOOST_CFLAGS=""],
  73       [ # Nope, look for latest version if any in $prefix/include/boost-*
  74
  75         # Wipe out cached value.  KLUDGE: AC should have API for this
  76         unset AS_TR_SH([ac_cv_header_boost/shared_ptr.hpp])
  77
  78         boost_last_match(){
  79           #echo "boost_last_match: [$]*"
  80           pattern="[$]1"
  81           shift
  82           if test "[$]pattern" = "[$]1"
  83           then
  84             LM=''
  85           else
  86             shift `expr [$]# - 1`
  87             LM=[$]1
  88           fi
  89           #echo "LM(1)='[$]LM'"
  90         }
  91
  92         pattern="/usr/local/include/boost-*"
  93         boost_last_match "$pattern" $pattern
  94         #echo "LM(2)='$LM'"
  95
  96         OLD_CPPFLAGS=$CPP_FLAGS
  97         CPPFLAGS="$CPPFLAGS -I$LM"
  98         AC_CHECK_HEADER([boost/shared_ptr.hpp],
  99           [BOOST_CFLAGS="-I$LM"],
 100           [AC_MSG_ERROR(
 101             [Failed to locate boost/shared_ptr.hpp.
 102 Try using --with-boost-include-dir=<path>,
 103 E.g., --with-boost-include-dir=/usr/local/include/boost-1_33_1])])
 104         CPPFLAGS=$OLD_CPPFLAGS
 105       ])
 106
 107    fi
 108    unset boost_last_match LM
 109    AC_LANG_POP
 110    AC_SUBST(BOOST_CFLAGS)
 111 ])