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bug#9396: make fails with undefined reference to '__sched_cpucount'
From: |
Jim Meyering |
Subject: |
bug#9396: make fails with undefined reference to '__sched_cpucount' |
Date: |
Tue, 13 Sep 2011 11:43:52 +0200 |
tags 9396 notabug
thanks
Paul Eggert wrote:
> On 08/28/11 14:59, Feuerbacher, Alan wrote:
>> I tracked the problem down to the fact that the RHEL5 system uses
>> /lib64/libc.so.6
>> which apparently is version 2.5 of the GNU C Library,
>> but this version does not contain "__sched_cpucount" - whatever that is.
>> Apparently only version 2.6 and later contain this stuff.
>
> It sounds like you're compiling with glibc 2.6 headers but linking
> to glibc 2.5. If so, that'd be a definite no-no; you need to configure
> and build with <= 2.5 headers if you're going to link with 2.5.
>
> I expect that it's the 2.6 headers that #define CPU_COUNT and bring
> in a reference to __sched_cpucount.
Thanks for the report.
Since we haven't heard back from you, I presume that
Paul's diagnosis was correct and have thus closed this bug.
If not, please let us know.
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