4.2.4 potential blocker

[Michael Pyne]

Hi all,

I guess there's been problems with KPixmapCache causing crashes for some 
people, bug 182026 (https://bugs.kde.org/show_bug.cgi?id=182026)

I've never been able to reproduce but it seems related to wrong code 
generation due to pointer aliasing, as the patches that fix the crash for 
people who do experience it make the aliasing explicit.

I committed a cleaner version of the patch for KDE 4.3 (rev 974349), it may be 
best to backport to 4.2 as well (I haven't touched branch at all).  Another 
option that might work would be to compile with -fno-strict-aliasing but I 
haven't tried that (although again, I can't reproduce anyways).

Regards,
 - Michael Pyne
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