#
#
# patch "simplestring_xform.cc"
#  from [9f72024cbeb2a7df393faae3e8b13b392fcd9300]
#    to [4d7bb0ac67e722f14a3f81722e05f249d009f645]
#
============================================================
--- simplestring_xform.cc	9f72024cbeb2a7df393faae3e8b13b392fcd9300
+++ simplestring_xform.cc	4d7bb0ac67e722f14a3f81722e05f249d009f645
@@ -27,7 +27,7 @@ lowerize
 struct
 lowerize
 {
-  char operator()(char const & c) const
+  char operator()(unsigned char const & c) const
   {
     return ::tolower(static_cast<int>(c));
   }
@@ -44,7 +44,7 @@ upperize
 struct
 upperize
 {
-  char operator()(char const & c) const
+  char operator()(unsigned char const & c) const
   {
     return ::toupper(static_cast<int>(c));
   }