+cleantests.opt: matitaclean.opt
+ @(cd library && make clean.opt)
+ @(cd tests && make clean.opt)
+ @(cd tests/bad_tests && make clean)
+ @(cd contribs/LAMBDA-TYPES && make clean.opt)
+ @(cd contribs/PREDICATIVE-TOPOLOGY && make clean.opt)
+.PHONY: tests tests.opt cleantests cleantests.opt