OK, just for anyone else reading this: 
--- Alias.xs
+++ Alias.xs
@@ -25,13 +25,6 @@
                 PERL_SUBVERSION)
 #endif
 
-#if defined(USE_DTRACE) && defined(PERL_CORE)
-#undef ENTRY_PROBE
-#undef RETURN_PROBE
-#define ENTRY_PROBE(func, file, line, stash)
-#define RETURN_PROBE(func, file, line, stash)
-#endif
-
 #if defined(PERL_CORE) && defined(MULTIPLICITY) && \
         (PERL_COMBI_VERSION < 5013006)
 #undef PL_sv_placeholder

[download]
did the trick!! thanks a lot davido.

In reply to Re^3: Data::Alias fails in OSX Mountain Lion. Please help by ematiu
in thread Data::Alias fails in OSX Mountain Lion. Please help by ematiu

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