hmm, cheap/dirty version, edit Makefile add myclass.o somewhere here

 g++  -shared -O2 -g -L/usr/local/lib -fstack-protector Mytest.o  -o b
+l
+ib/arch/auto/Mytest/Mytest.so myclass/libmyclass.a    \
[download]

or run that command manually so myclass.o gets linked into MyTest.so

if the tests pass after that then study ar manual (or xspp or Inline::CPP examples-generated-example-Makefile ) to figure out if you can fixup that portion of your Makefile so ar to generate the right type of file (like static version, or one with the right symbols being exported ...)

Try removing unitTest.o from the list

Also it would be helpful if you could provide a patch file like SOso-0.01.patch.txt , easier than copy/pasting multiple files from here on perlmonks ..

Thats all I have time for now :) See you next day