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[Bug stdio/21004] fread/fwrite does not handle EINTR correctly


https://sourceware.org/bugzilla/show_bug.cgi?id=21004

--- Comment #4 from Florian Weimer <fweimer at redhat dot com> ---
(In reply to Bernd Edlinger from comment #3)
> What exactly would break by retrying EINTR
> that is not already broken?

Code which uses EINTR to exit a blocked fread, with a signal handler which sets
a global variable checked by the caller of fread.

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