Fix for bfd/dwarf1.c

[Alan Modra]

On Tue, 3 Oct 2000, Will Cohen wrote:

> 2000-10-03  Will Cohen  <wcohen@redhat.com>
> 
> 	* dwarf1.c (_bfd_dwarf1_find_nearest_line): Added code to
> 	initialize fields in aUnit.
> 
> This fixes a problem with some unitialized pointer fields being
> filled with garbage, causing the linker to crash on winNT
> when trying to link code with debugging information.

But "aUnit" is allocated using bfd_zalloc, so I don't see what your patch
is doing.  The fields you are zeroing should already be zero from the
bfd_zalloc.

Alan Modra
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