Redhat: 'clean build area' error message during dkms build/install
dkms invokes a make clean command before and after building the kernel
module. The make clean that is issued at the start of building results
in a nuisance error message because the Makefile doesn't yet exist
Building module:
cleaning build area...(bad exit status: 2)
In the dkms.conf file, built from within the openafs.spec, change the
command defined in the CLEAN statement to test for the existence of the
Makefile prior to running the actual make clean
Change-Id: Ifc0d5eed6ef0cbc3ddfd193d27bbcb8a7cf52f2a
Reviewed-on: https://gerrit.openafs.org/13460
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>