[PATCH 3/5] linux: Replace zero-length array with flexible-array member on inotify struct

[Florian Weimer]

* Cristian Rodríguez via Libc-alpha:

> Current kernel versions require a compiler supporting -std=gnu11
> and therefore supporting C99 flexible arrays. old versions require
> a c89 compiler supporting this feature as an extension.

Ugh, you are right:

commit 94dfc73e7cf4a31da66b8843f0b9283ddd6b8381
Author: Gustavo A. R. Silva <gustavoars@kernel.org>
Date:   Wed Apr 6 19:36:51 2022 -0500

    treewide: uapi: Replace zero-length arrays with flexible-array members

It's specifically targeting UAPI headers, so it's not a (harmless)
kernel-internal change.

Do you know if anyone has looked at the compatibility impact of this
change on C parsers?  I'm not sure if we can do the same thing.  In
particular, if kernel headers are not C89-compatible, we may have to add
kludges to our own headers that avoid including them in C89 mode.

Thanks,
Florian