When all transformation rules to or from a suffix disappeared, make tries to free the suffix. I think, it is a very strange idea. (Or, maybe, it is a POSIX requirement?) And it is done incorrectly. Apparently, it even don't update the list of known suffixes (but it is an other bug).
When all transformation rules to or from a suffix disappeared, make tries
to free the suffix. I think, it is a very strange idea. (Or, maybe, it is a
POSIX requirement?) And it is done incorrectly. Apparently, it even don't
update the list of known suffixes (but it is an other bug).

PR:		4254, 4692, 4783
Reviewed by:	phk
Submitted by:	Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>

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