function CHECK:
- fix variable
- remove make flag '-k'
- remove .sig file from sources since public key unknown
ERROR: aspell-0.60.8.tar.gz ... FAILED (unknown public key B6D9D0CC38B327D7)
In some cases this will introduce cycles which could likely be cleaned
up by only depending on some unix tools instead of the whole autotools.
Rebuilding doesn't make much sense at this point since it just adds a subset
of base-devel which is still installed by default.
