Review Request: Add spinlocks lock type, based on GCC intrisincs

[Vadim Zhukov]

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http://git.reviewboard.kde.org/r/106224/
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Review request for kdelibs and Michael Pyne.


Description
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Add simple spin locking mechanism.
Written by Michael Pyne as from https://bugs.kde.org/attachment.cgi?id=73282 , with some tweaking by me.


This addresses bug 305023.
    http://bugs.kde.org/show_bug.cgi?id=305023


Diffs
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  kdecore/util/ConfigureChecks.cmake fe9f47e 
  kdecore/util/config-util.h.cmake 83ccdf7 
  kdecore/util/kshareddatacache_p.h ec5a7a0 

Diff: http://git.reviewboard.kde.org/r/106224/diff/


Testing
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On OpenBSD-CURRENT, i386


Thanks,

Vadim Zhukov

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