https://bugs.freedesktop.org/show_bug.cgi?id=63632
--- Comment #13 from Michel Dänzer michel@daenzer.net --- (In reply to comment #9)
On the 64 bit build I have only recently installed as it [libelf] became required for llvm - I used the source from debian sid.
For the record, that's ambiguous, as Debian has both variants as libelfg0{,-dev} and libelf{1,-dev} respectively.