Get ICU 4.6 to be compiled without RTTI....

third_party/icu/source/i18n/brktrans.cpp

 /*
 **********************************************************************
 *   Copyright (C) 2008-2010, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 **********************************************************************
 *   Date        Name        Description
 *   05/11/2008  Andy Heninger  Port from Java
 **********************************************************************
 */
 
@@ skipping 156 matching lines @@
 
 //
 //   replaceableAsString   Hack to let break iterators work
 //                         on the replaceable text from transliterators.
 //                         In practice, the only real Replaceable type that we
 //                         will be seeing is UnicodeString, so this function
 //                         will normally be efficient.
 //
 UnicodeString BreakTransliterator::replaceableAsString(Replaceable &r) {
     UnicodeString s;
-    UnicodeString *rs = dynamic_cast<UnicodeString *>(&r);
+    UnicodeString *rs = CR_DYNAMIC_CAST<UnicodeString *>(&r);
     if (rs != NULL) {
         s = *rs;
     } else {
         r.extractBetween(0, r.length(), s);
     }
     return s;
 }
 
 U_NAMESPACE_END
 
 #endif /* #if !UCONFIG_NO_TRANSLITERATION */