463101).
- Fix .eh_frame_hdr build on C++ files with discarded common groups (BZ
458950).
- Provide --build and --host to fix `rpmbuild --target' biarch builds.
- Include %{binutils_target}- filename prefix for binaries for cross
builds.
- Fix multilib conflict on %{_prefix}/include/bfd.h's
BFD_HOST_64BIT_LONG_LONG.
