Re: fseeko broken by Fedora rawhide glibc / git master (ie future 2.28)

[Paul Eggert]

On 03/05/2018 04:19 AM, Daniel P. Berrangé wrote:
> I'm curious why we're trying to replace fseeko impl at all, since I
> would expect the modern glibc impl to be suitable to use as-is.

It's to work around glibc bug#12799, a longstanding bug with ungetc and 
fflush. See the bug-gnulib thread that starts here:

https://lists.gnu.org/r/bug-gnulib/2009-01/msg00067.html

Any chance of getting that glibc bug fixed in glibc 2.28? That should 
avoid the problem with Gnulib, and would be a good thing in its own 
right. In the meantime, the attached Gnulib patch is intended to work 
around the bug from the Gnulib side; does it work for you? (I haven't 
tried it on rawhide.)

0001-fflush-adjust-to-glibc-2.28-libio.h-removal.txt
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