Actually I'm just going to cheat, in a way. Added -fno-strict-volatile-bitfields to makepkg.conf C/CXXFLAGS and I'm plowing through KDE stuff on v7h. Will make the adjustments to v5 and start building there after today's round of updates finishes. That flag essentially does the same thing that the patch accomplishes, and is how I was building KDE packages manually before, only now it finally clicked to add it to makepkg.conf.
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