[LLVMdev] pass for backend

[Nico]

Hi there,

I wrote a pass for my (language)backend, but llc can't load it. I get  
the following error message:

-------------------------------------------------------------------------------
Error opening '/home/nico/build/Release/lib/foo.dylib': Can't open :/ 
home/nico/build/Release/lib/foo.dylib: dlopen(/home/nico/build/Release/ 
lib/foo.dylib, 9): Symbol not found:  
__ZN4llvm28PostDominanceFrontierLinkVarE
   Referenced from: /home/nico/build/Release/lib/foo.dylib
   Expected in: flat namespace

   -load request ignored.
-------------------------------------------------------------------------------

The same pass works in another library that I use with opt. I'm not  
sure what went wrong. Is it not allowed to use the post dominance  
frontier stuff in a pass for a backend (or in other words: with llc  
instead of opt)?
Is it possible to fix it and I missed it?

Thanks a lot,
nico