[Debian-med-packaging] Different symbols files on different architectures

[Andreas Tille]

Hi Julien,

you see, that symbols files is a complex topic (which is why I stayed
away usually from it).  I'm not sure whether it is worth the effort to
maintain it for all architectures for libbpp-* since I think the only
practival use is amd64.  If you are motivated to dive a bit deeper into
it with the given hints that's fine for me.  I personally would go
with my suggested solution to have symbols file only for amd64 and
just remove it before building other architectures.  I'm fine with
implementing this in case you agree with me.

Kind regards

       Andreas.

On Fri, Apr 06, 2018 at 06:09:31PM +0200, Sebastiaan Couwenberg wrote:
> On 04/06/2018 05:48 PM, Andreas Tille wrote:
> > Hi Bas,
> > 
> > On Fri, Apr 06, 2018 at 02:18:03PM +0200, Sebastiaan Couwenberg wrote:
> >> On 04/06/2018 02:08 PM, Andreas Tille wrote:
> >>> after adding a symbols file to libbpp-core all other architectures are
> >>> failing due to different symbols (see below for ppc64el[1]) but others
> >>> are failing as well.  What is the correct way to fix this?
> >>
> >> Use (arch=ppc64el) tags for the symbols, or something more generic like
> >> arch-bits or arch-endian if those symbols differ based on 32/64 bits
> >> CPUs or big/little endian.
> >>
> >> See: dpkg-symbols(1)
> >> https://manpages.debian.org/unstable/dpkg-dev/dpkg-gensymbols.1.en.html#Standard_symbol_tags
> > 
> > I've checked this and I think I understand the task in principle but
> > in practice for libbpp-core that's a no-go for manual adaption to
> > edit about 1000 entries (may be per architecture).  Is there some
> > tool that helps here?  If not my proposed solution would be to
> > provide a symbols file for amd64 only and move it out of the way
> > in debian/rules for other architectures.
> > 
> > (I gave it a very minimal shot in branch symbols_i386 but gave up
> > after some 20+x entries.)
> 
> Since it's a C++ library, I suggest pkgkde-tools:
> 
>  http://pkg-kde.alioth.debian.org/symbolfiles.html
> 
> Or just not bother with symbols and use `dh_makeshlibs -V`.
> 
> Kind Regards,
> 
> Bas
> 

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