Re: [PATCH 1/5] compat/obstack: fix -Wcast-function-type warnings

SZEDER Gábor [off-list ref] writes:

quoted

Well, first I'm not sure what changes Ævar meant to be backported.
Back then I briefly glanced at glibc's gitweb [1], but didn't see
anything remotely relevant to these compiler errors.

So, I looked at the gnulib repository, where glibc got it's
obstack.{c,h} from, and it does have a fix for this issue in commit
127ed6a3e (obstack: avoid potentially-nonportable function casts,
2014-11-04):

  http://git.savannah.gnu.org/cgit/gnulib.git/commit?id=127ed6a3ea9c46452f079dee50382dc1f70ea796

It chose basically the same approach as my fix, i.e. storing pointers
to functions with different signatures in an union.  However,, the
differences between our and their obstack.{c,h} are way too big to
backport their patch.

Thanks.  In the meantime, I've queued your fix in my tree, and with
your digging, we can say we did due diligence and apply a local fix
with conscience ;-).