gperf/cci.20201208: WARN: Build folder is dirty, removing it: /Users/jenkins/w/cci_PR-4332/.conan/data/gperf/cci.20201208/_/_/build/46f53f156846659bf39ad6675fa0ee8156e859fe
ERROR: gperf/cci.20201208: Error in source() method, line 29
	tools.get(**self.conan_data["sources"][self.version])
	ConanException: Cannot deduce file name from the url: 'https://git.savannah.gnu.org/gitweb/?p=gperf.git;a=snapshot;h=556e87b5c52b0c03a1e7418f45225a9b664f83c5;sf=tgz'. Use 'filename' parameter.