llvm dev - Sep 2015 - undefined symbol for initialize method

Hi,

I have my own passes and I am trying to build a PassManager that call the passes
in a certain order.
I followed Polly Pass manager, however when I try to load it in opt and call one
of my passes I get the following error:

undefined symbol: _ZN4llvm23initializeArcherDDAPassERNS_12PassRegistryE

any idea how to fix it?
I didn’t implement the “initializeArcherDDAPass” function since I noticed that
those functions are never implemented in LLVM passes.

What am I doing wrong?

Thanks.
Best,
Simone