Pack Elf_External_Note

[Ian Lance Taylor]

Daniel Jacobowitz <drow@mvista.com> writes:

> Something I mentioned four months ago.  Alan fixed the only place in BFD
> that I know of which assumed the size of this structure, but the extra
> packed attribute is a guard against future problems.

I don't really like this.  A feature we try to preserve in the
binutils is for them to serve to bootstrap the GNU tools on a new
system.  Adding a gcc specific feature like that to elf/external.h can
potentially hide a problem which would arise when bootstrapping with a
non-gcc compiler.  I would prefer to leave the problem exposed, so
that it is more likely to be fixed before it becomes a problem.

Ian