What needs to be recompiled when upgrading to 2.1?

[Horst von Brand]

Zack Weinberg <zack@rabi.columbia.edu> said:

[...]

> What happens if you recompile a library, say ncurses, against 2.1 and then
> try to use that library with an old binary?  If this doesn't work,
> distributions will have problems.

It works fine, AFAIKS. Old binaries work fine with the new libraries, what
doesn't work is to compile new programs against new libc and old ncurses:
The result crashes on startup.

What still seems not to work is new glibc (2.0.108 here) + pam: RedHat's
rpm doesn't find users/groups, and a newly compiled login from
util-linux-2.9g won't let you in.
-- 
Horst von Brand                             vonbrand@sleipnir.valparaiso.cl
Casilla 9G, Viña del Mar, Chile                               +56 32 672616