Any chance of r27882 being reverted?
As I told the Fedora guys when that patch originally surfaced,
I'm not overly fond of
- copying source files around as part of the configure step
- having separate source files for ARMv6 and ARMv7, when those differences
should be easily separated through macros (and would be reusable for 32-bit
Also, I might have mentioned that bit only on a separate thread on the Fedora list, but the ARMv4 support isn't actually correct (the ASM uses ARMv5-only operations).
My alternate solution, the basic idea of which I posted over there  was to separate ARMv5 and earlier from ARM. Effectively separating the atomics implementation at the boundary where The ARM architecture got load-linked/store-conditional, rather than having a separate source file for every architecture version.
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