It fails on scanning the .gnu.hash section. Is this going to be fixed at some point, or are we going to have to live with the incompatibility? dj@greed pts/4 ~/gnu/binutils-2.17/x86_64/binutils $ ./nm-new /lib64/libc-2.5.so ./nm-new: /lib64/libc-2.5.so: File format not recognized