Comment # 8 on bug 1223783 from Richard Biener

(In reply to Atri Bhattacharya from comment #7)
> (In reply to Richard Biener from comment #4)
> > Note one important step will be to make sure (at least for the shared
> > libraries) that no symbols are removed.  Ideally that should be the case for
> > the static libraries as well - we've had multiple issues here in the past
> > with lapack
> > deprecating APIs and not building them by default when not specially asked.
> > 
> > That might be OK for openSUSE but for old SLES codestreams we have to be
> > careful.  I'm not sure for SLE15 -> SLE16 compatibility but breaking the
> > shared library ABI would be bad.
> 
> Could you suggest what SLE versions I should test the update against? I see
> that OBS allows me to add SLE-11-SP4, SLE-12-SP5, and SLE-15-SP1 through SP6
> as build repositories to the project.

I think the best is to check SLE15 SP6 or simply what's in Leap 15.5 or 15.6
(I suppose we don't have any newer version in Backports).  Note that on SLE15
lapack is built against the SLE-15:Update tree (thus against GA), but this
shouldn't make a difference with respect to the ABI.