-.PHONY: all mostlyclean clean install avail unavail bin lib doc
+.PHONY: all mostlyclean clean install zip avail unavail bin lib doc
.SUFFIXES:
-all mostlyclean clean install:
+all mostlyclean clean install zip:
@$(MAKE) -C src --no-print-directory $@
@$(MAKE) -C libsrc --no-print-directory $@
@$(MAKE) -C doc --no-print-directory $@