Set ac_cv_prog_A2X to disable build of documentation and avoid the
following build failure without a working a2x raised since at least bump
to version 1.1.1 in commit ad21d84a58:
a2x -v -f manpage doc/man/usbguard.1.adoc -D ./$(dirname doc/man/usbguard.1.roff)
a2x -v -f manpage doc/man/usbguard-dbus.8.adoc -D ./$(dirname doc/man/usbguard-dbus.8.roff)
/nvmedata/autobuild/instance-5/output-1/host/bin/python3: Error while finding module specification for 'asciidoc.a2x' (ModuleNotFoundError: No module named 'asciidoc')
Fixes:
- http://autobuild.buildroot.org/results/e41950f3cd4bd83d9b067af498757cb9d2f207ef
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
cff78c34fb