BIND 10 trac3025, updated. f59e953a20f34118e276c215ed5d75f0e0611c7f [3025] Update the error message for old boost

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- Log -----------------------------------------------------------------
commit f59e953a20f34118e276c215ed5d75f0e0611c7f
Author: Michal 'vorner' Vaner <michal.vaner at nic.cz>
Date:   Mon Aug 12 12:07:09 2013 +0200

    [3025] Update the error message for old boost
    
    Tell more details about what the problem is.

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Summary of changes:
 configure.ac |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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diff --git a/configure.ac b/configure.ac
index 762b896..1193d41 100644
--- a/configure.ac
+++ b/configure.ac
@@ -914,7 +914,9 @@ AC_SUBST(BOOST_MAPPED_FILE_CXXFLAG)
 
 if test "$BOOST_OFFSET_PTR_OLD" = "yes" -a "$use_shared_memory" = "yes" ; then
     AC_MSG_ERROR([You're trying to compile against boost older than 1.48 with
-shared memory. This is known to cause problems under certain situations.
+shared memory. Older versions of boost have a bug which causes segfaults in
+offset_ptr implementation when compiled by GCC with optimisations enabled.
+See ticket #3025 for details.
 
 Either update boost to newer version or use --without-shared-memory.
 Note that most users likely don't need shared memory support.