[Bug binutils/28917] ar: r does not replace objects specified multiple times on the command line

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28917

Alan Modra <amodra at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |amodra at gmail dot com

--- Comment #3 from Alan Modra <amodra at gmail dot com> ---
GNU ar was deliberately changed to allow multiple files with the same base name
in commit 7f924d5516cf5 1996-10-01.  That's when the comment was added about
"compatibility with existing ar programs" too.  I think we should leave things
as they are.  Posix says "It is unspecified whether multiple files in the
archive may be identically named."  Since we do allow that, it seems reasonable
to make "ar -r archive.a a/foo.o b/foo.o" put both objects in the archive.

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