Include the XDR headers in the internal guestfs-internal.h instead.
This is knock-on effects to several other source files which
were implicitly relying on indirectly loaded headers.
The progress bar is updated 3 times per second, and is not displayed
at all for operations which take less than two seconds.
You can disable progress bars by using the flag --no-progress-bars,
and you can enable progress bars in non-interactive sessions with
the flag --progress-bars.
A good way to test this is to use the following command:
guestfish --progress-bars \
-N disk:10G \
zero-device /dev/sda
(adjust "10G" to get different lengths of time).