This causes libdw to not be able to be linked with a C++ program.
Upstream Bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=193153 Has been resolved upstream, and temporary measures have been comitted to the local codebase.
2006-05-29 Adam Jocksch <ajocksch@redhat.com> * Makefile.am: Added libdwfl.a. * elfutils/libdw/libdw.h: Added extern "C" as a temporary fix. * elfutils/libdwfl/libdwfl.h: Ditto.