On Sun, Aug 18, 2002 at 06:09:18PM +0200, Luca Barbieri wrote: > > > Of course it would be better to avoid having to do things like this but > > > unfortunately there is simply no other solution that doesn't break > > > existing G++ v2 packages. > > Of course there is. You upload new versions of the gcc 2.95 packages, > > and you make the new gcc 3.2 packages conflict with the old ones. > > Nothing is broken in that case. > False. > Users will no longer get updated version of any C++ package unless they > manually remove/recompile any package depending on the old libraries > which is not yet recompiled or is not in Debian. Huh? We have libfoo++3 2.1.0-5 in the archive currently. We recompile the library against gcc 3.2, changing the name to libfoo++3c and conflicting with libfoo++3 <= 2.1.0-5. We then add a compatibility package, libfoo++3 2.1.0-6, which puts its libs in the new location for such things, and depends on whatever approved linker glue will be used for identifying ABIs. If a user upgrades libfoo++3, the library moves to the new directory, and the linker glue is installed, so no packages break. If a user installs libfoo++3c or a package that has been recompiled against it, it forces libfoo++3 to also be upgraded to the version that stows the library in the new canonical location. What breaks? If you were planning to NOT provide backwards-compatible libraries and linker glue, then your suggestion to modify dpkg is more broken than I thought. > Actually I think that those packages don't require any external C++ > library so they may still work, but what if they required one? What > would a KDE user do? Go back to the obsolete 2.2? Be no longer able to > get upgraded Debian packages, that might even contain security fixes? > Recompile packages on its own? > Would those alternatives be better than an ugly fix limited to dpkg? Yes, because by itself, the ugly fix in dpkg wouldn't *fix* anything, and it *would* make it more difficult to fix other bugs. Steve Langasek postmodern programmer
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