diff -up aspell-0.60.6/common/convert.cpp.zero aspell-0.60.6/common/convert.cpp

--- aspell-0.60.6/common/convert.cpp.zero	2007-12-03 07:55:45.000000000 +0100

+++ aspell-0.60.6/common/convert.cpp	2008-09-01 12:04:39.000000000 +0200

@@ -813,6 +813,7 @@ namespace acommon {

   {

     ToUniLookup lookup;

     void decode(const char * in, int size, FilterCharVector & out) const {

+      if (size == 0) return; // if size == 0 then while loop cause SIGSEGV

       const char * stop = in + size; // this is OK even if size == -1

       while (*in && in != stop) {

         out.append(from_utf8(in, stop));