[gvfs] Hard code freeze break request (bz #693634)

[Tomas Bzatek <tbzatek redhat com>]

Hi,

there's a small autotools fix for gvfs we would like to have included in
the final release. Without this fix things won't break, only make
developer life more difficult.


https://bugzilla.gnome.org/show_bug.cgi?id=693634
autoreconf fails with 1.15.3 on missing m4 directory


It's tested cross-distro, by Martin Pitt, I forgot to push it two weeks
ago.

Kindly requesting hard code freeze break.


Thanks,
-- 
Tomas Bzatek