FYI: LD_ASSUME_KERNEL From http://people.redhat.com/drepper/assumekernel.html This means no LD_ASSUME_KERNEL setting requesting versions earlier than 2.2.5 will work at all. Versions from 2.2.5 to 2.4.0 will use the DSOs in /lib, versions from 2.4.1 to 2.4.19 will use the DSOs in /lib/i686, versions 2.4.20 and younger will use the DSOs in /lib/tls. The specific ABI version requirements on a RHL9, and Fedora Core 1 and 2 system are as follows (NB: this implies IA-32 is the architecture): DSOs in /lib/tls need ABI version 2.4.20. DSOs in /lib/i686 need ABI version 2.4.1. DSOs in /lib need ABI version 2.2.5. For the Red Hat releases this layout was chosen to provide the maximum amount of backward compatibility for broken applications (correctly written applications have no problems anyway). The code in /lib consists of the very early LinuxThreads code which had fixed size threads which could not be placed by the application. The version in /lib/i686 is the LinuxThreads code which does away with this limitation (aka floating stacks). The code in /lib/tls is the new NPTL POSIX thread library. Thomas On Tue, 2005-02-08 at 17:32, Jens Vagelpohl wrote:
On Feb 8, 2005, at 17:55, Tres Seaver wrote:
|> I am wondering which version of glibc you have, or if you are using the |> LD_ASSUME_KERNEL variable in any way? Can you also tell me what your |> ./configure command line looked like when you compiled Python? I have compiled |> both 2.4 and 2.3.3 on the FC1 machine, but perhaps I left something critical |> out of the configuration.
I don't do anything to touch LD_ASSUME_KERNEL, and my 'configure' is bare-bones simple ('--prefix="/opt/zope" --enable-unicode="ucs2"').
I honestly don't remember where that whole "LD_ASSUME_KERNEL" stuff originated, but it seems to be one of those myths that somehow never die. I have used all kinds of RH/FC releases over the last 5 years and it seems that LD_ASSUME_KERNEL was used for some other purpose, and unfortunately it has reached complete FUD status as far as Python/Zope is concerned now...
jens
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