Such a runtime check would be too costy, I believe.
I do agree, though, that it's not glibc's problem, however, I also agree with Linus (and other commenters) who believe that knowingly shipping a Fedora release with broken flash is stupid, especially when the problem and the fix is already known, and is fairly trivial.
(Those programs that desperately need the faster memcpy, if it is faster to begin with, can LD_PRELOAD it)
I do agree, though, that it's not glibc's problem, however, I also agree with Linus (and other commenters) who believe that knowingly shipping a Fedora release with broken flash is stupid, especially when the problem and the fix is already known, and is fairly trivial.
(Those programs that desperately need the faster memcpy, if it is faster to begin with, can LD_PRELOAD it)