[NFS-Ganesha-Devel] Compiling ntirpc and Ganesha with clang: container_of macros?

I have compiled ntirpc, NFS Ganesha and all dependencies with clang. When I try to run the code, I get a SIGILL signal triggered from the "opr_containerof" macro in ntirpc/ntirpc/misc/opr.h. I'd like to fix this. My preferred option would be to unify the ntirpc "opr_containerof" and Ganesha "container_of" macros into a single "container_of" macro. A macro that's defined once (in ntirpc) and that compiles and runs with both gcc and clang. I've got a few questions around all this. First of all, does this sound like a good idea? I could simply update the opr_containerof macro, so that it also works with clang. What does OPR mean? Is the "opr_containerof" macro used anywhere else but Ganesha? Thanks, Bjorn