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Old 04-24-2003, 11:50 AM   #1
Registered: Apr 2003
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Cool Can I install many glibc libraries in order to run old programs?


This maybe a newbie question and be based on total misunderstanding that how things actually work, but please help a newbie. :-)

I would like to run and compile old redhat programs in a new redhat release like RH 8.0 or 9.0.

But as you know there maybe forexample a library program. The program which is made for for old glibc library 2 wont allways work in glibc library 3.

But there are so called compatibilty glibc libraries so you can make a build for old redhat release in a new redhat 8.0 or 9.0.

If I install these I can make backward compilings but will it also enable for me to run those old programs in a new O.S?

What about other parts? Can a new kernel run programs which are designed for old kernel? And so on.


Last edited by Tommi; 04-24-2003 at 11:59 AM.
Old 04-24-2003, 05:22 PM   #2
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glibc since v2.0 onwards does not break backwards compatability (in theory).

You should just be able to recompile. You may need to install some older packages, but you can leave glibc alone.
Old 04-24-2003, 07:39 PM   #3
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Can a new kernel run programs which are designed for old kernel? And so on.

As a general rule, yes. I would not bother trying something written to work
on kernels older than 2.0

What about other parts

It varies. KDE and Qt are probably the worst components about backward
compatibility. Gnome is much more relaxed about backward compatibility than KDE.

gcc goes in spurts. Every once in a while it creates a backwards compatibility barrier.

So the answer is that you have to take backward compatibility on a case by case basis.


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