[cfe-users] UBSAN_MODE_UNKNOWN

[Ben Pope]

When I run with UBSAN over the Boost libraries, I get a lot of output of 
the form:
==20717==Sanitizer CHECK failed: 
/home/ben/development/llvm/trunk/llvm/projects/compiler-rt/lib/ubsan/ubsan_init.cc:60 
((UBSAN_MODE_UNKNOWN)) != ((ubsan_mode)) (0, 0)

I'm not sure what's going wrong, I was expecting something more 
descriptive!  Other tests do fail with more descriptive errors.

Any suggestions?

Thanks,

Ben