[Bug libc/23960] [2.28 Regression]: New getdents{64} implementation breaks qemu-user

["glaubitz at physik dot fu-berlin.de" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=23960

--- Comment #43 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
(In reply to John Paul Adrian Glaubitz from comment #42)
> (In reply to James Clarke from comment #41)
> > Easiest thing would be to patch gcc/config/whatever.h to include:
> > 
> >     builtin_define ("_LARGEFILE_SOURCE=1");         \
> >     builtin_define ("_LARGEFILE64_SOURCE=1");       \
> >     builtin_define ("_FILE_OFFSET_BITS=64");        \
> > 
> 
> I just noticed that at least dash seems to have been patched to enable LFS
> now, see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916255. So, it
> could be that at least our original bug could already be addressed now. But
> I think there was another important package affected by this regression
> although I don't remember.

Okay, so I can confirm that dash is no longer affected after #916255. However,
qt5-qmake still misbehaves. Looking at the build log, qt5-qmake is built with
_LARGEFILE_SOURCE=1 but not _LARGEFILE64_SOURCE=1 [1] while qt4-x11 is [2].

I will rebuild qtbase-opensource-source with _LARGEFILE64_SOURCE to see if that
helps.

> [1] https://buildd.debian.org/status/fetch.php?pkg=qtbase-opensource-src&arch=m68k&ver=5.11.3%2Bdfsg1-1&stamp=1554325976&raw=0
> [2] https://buildd.debian.org/status/fetch.php?pkg=qt4-x11&arch=m68k&ver=4%3A4.8.7%2Bdfsg-18&stamp=1555145133&raw=0

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