Using a RedHat 6.x distro, I have a lot of things updated:

kernel 2.2.19 with reiserfs
java 1.2.2 ( Sun and Blackdown )
java 1.3 ( Sun, Blackdown, and IBM )
glibc 2.1.3
binutils 2.9.5
cpp 2.95
gcc 2.95
gcc-c++ 2.95
gcc-java-2.95
qt 2.3
Xfree 4.0.3
kde 2.1

I have upgraded gcc from 2.9.1 ( that came with egcs ) to gcc 2.95 (
from libc6 contrib RPM ) due to a compiler bug that I encounered
compiling some apps with "march=i686".

I want to upgrade from glibc 2.1 to glibc 2.2. I was wondering what the
effect of this would be on the java binaries distributed by blackdown (
since the site only mentioned glibc 2.1.3 ), sun, and IBM.

With the exception of installing a new distro, I have not done a major
glibc upgrade. So my questions are:


1) Is it safe? Will java ( and other the existing apps ) that were
compiled, static or shared, with glibc 2.1 still work with glibc 2.2?
The only general information I can find about this is on the link below:

        http://www.imaxx.net/~thrytis/glibc/glibc-FAQ.html#2.3

... but it seems that the document is about a move from libc5  to libc6.
Is there a more updated version of this doc specifically for a move from
glibc 2.1 to glibc 2.2?

2) There are glibc 2.2 RPMs from RedHat's contrib directory. Has anyone
with a Redhat 6.x distro tried upgrading glibc with these RPMs? If yes,
what were the effects on Java?


Any help appreciated,

John

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Homepage: http://homepages.tig.com.au/~jmsalvo/
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