Hi monks! I'm learning how to use XS. I want to have an C++ refcounted object that use an perl HV for ref-counting and custom data storage. However I got a weird error message while loading my module: 
Can't load 'blib/arch/auto/xstest/xstest.so' for module xstest: blib/a
+rch/auto/xstest/xstest.so: undefined symbol: _ZN10Referenced15_perl_m
+g_vtableE at /usr/lib64/perl5/5.12.3/x86_64-linux/DynaLoader.pm line 
+200.
 at show.pl line 3
Compilation failed in require at show.pl line 3.
BEGIN failed--compilation aborted at show.pl line 3.

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I'm using gentoo linux, gcc version 4.4.5, perl version 5.12

In reply to Problem on XS module loading by llancet

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