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https://issues.apache.org/jira/browse/TS-515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leif Hedstrom updated TS-515:
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Fix Version/s: 2.1.5
> eventfd availability not correctly determined on older linux kernels
> --------------------------------------------------------------------
>
> Key: TS-515
> URL: https://issues.apache.org/jira/browse/TS-515
> Project: Traffic Server
> Issue Type: Bug
> Components: Build
> Affects Versions: 2.1.3
> Environment: Debian Linux VPS, uname -a :
> 2.6.18-194.17.1.el5.028stab070.7 #1 SMP Fri Oct 1 14:17:14 MSD 2010 i686
> GNU/Linux
> Reporter: Marcus Clyne
> Priority: Minor
> Fix For: 2.1.5
>
>
> It appears that the macro ATS_HAS_EVENTFD is not correctly determined in some
> instances.
> When compiling v 2.1.3 on the above environment, I get :
> ...
> UnixEThread.cc:33:25: error: sys/eventfd.h: No such file or directory
> mv -f .deps/Thread.Tpo .deps/Thread.Po
> g++ -DHAVE_CONFIG_H -I. -I../../libinktomi++ -I../../librecords
> -D_LARGEFILE64_SOURCE=1 -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -D_REENTRANT
> -Dlinux -I/usr/include/tcl8.4 -march=i586 -g -pipe -Wall -Werror -O3
> -feliminate-unused-debug-symbols -fno-strict-aliasing -Wno-invalid-offsetof
> -MT UnixEvent.o -MD -MP -MF .deps/UnixEvent.Tpo -c -o UnixEvent.o UnixEvent.cc
> UnixEThread.cc: In constructor 'EThread::EThread(ThreadType, int)':
> UnixEThread.cc:76: error: 'eventfd' was not declared in this scope
> make[2]: *** [UnixEThread.o] Error 1
> ...
> According to http://perkamon.alioth.debian.org/online/man2/eventfd.2.php
> eventfd() is available in Linux kernels >= 2.6.22, so I am assuming in a
> 2.6.18 kernel, ATS_HAS_EVENTFD should not be set, but it is. I'm also
> assuming this is a ./configure issue.
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