- Provide libbfd.so and libopcodes.so for automatic dependencies (BZ
        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.