Re: [PATCH] compile: Use libcc1.so->libcc1.so.0

[Phil Muldoon <pmuldoon at redhat dot com>]

On 23/04/15 06:29, Jan Kratochvil wrote:
>
> So you request forward/backward compatibilities, specifically:
>
> (1) Do you request future gdb-7.10 is compatible with existing gcc-5.x?
>
> (2) Do you request future gcc-6.0  is compatible with existing gdb-7.9?
>
> With an answer for (1) and (2) we can decide on how to implement it.
>
>

Both! ;)

In principle the decision bump is OK; but, and this is the huge
caveat, we could fix this quite easily by adding another method to the
vtable exported by the plug-in and not need or require all of the
tinkering that would be needed downstream. Yes, Fedora could be
modified to cope with it, but we have to think about the work all the
other distributions would also have to do if this proposed change were
implemented.

I don't think a version change merits that. And the change is tiny:
just one more parameter for a function. You could avoid it by having
two public methods exported in the vtable: foo (old params), foo (old
params, new params) and then re-factoring out the old function to
foo_worker_1 and have the two "foo" functions call foo_worker_1 with
the new parameter or NULL in its place.

I'm not adverse to version changes but I think they should merit the
change. Possibly as a collection of changes.

What are your thoughts?

Cheers

Phil