llvm dev - May 2016 - underfined symbol in pass object after building r270133

Hi,

I've been using a pass with opt (built a while ago), which works fine.
However, after I built a recent version of LLVM & clang (270133), I got an
error when loading my pass as follows:

opt -load Merge/libLLVMMerge.so -Cool axpy.bc

*Error opening 'Merge/libLLVMMerge.so': Merge/libLLVMMerge.so: undefined
symbol:
_ZN4llvm18PassManagerBuilder18addGlobalExtensionENS0_16ExtensionPointTyEPFvRKS0_RNS_6legacy15PassManagerBaseEE*

*  -load request ignored.*

Any ideas?

Thanks!

Yuanfeng Peng
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