[ILUG] libc incompatibilities

[Liam Bedford]

On Thu, Jul 12, 2001 at 09:40:53PM +0100, Gary Coady came forth with:
> On Wed, Jul 11, 2001 at 10:57:18AM +0100, John P. Looney wrote:
> >  Anyone know what the story is with glibc incompatibilities ? I've got a
> > wierd problem where compiling openssl on my redhat (7.1/glibc2.2.2) box
> > works - and I can run the binary, but if I scp it to another box (custom
> > distro/glibc2.2.1) and try and run it, it core dumps, in fputs().
> > 
> >  Now, if I compile it on a Mandrake (7.2/glibc2.1.3) box, it runs fine on
> > said "custom" box.
> 
> AFAIK glibc is designed to be forward compatible, but not backward
> compatible. I think the last major incompatiblity jump was with 2.1.97 so
> anything compiled with a later version of libc will not work on a libc
> library below that. Annoying but true.

maybe, but it's definitely dodgy.

Debian unstable, glibc 2.2.3...
Unreal Tournament crashes instantly on initialising OpenGL.
Progeny, glibc 2.2.1/2 
it works fine..

strange but true..

L.
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