fixed -f in clean

[helm.git] / helm / matita / contribs / PREDICATIVE-TOPOLOGY / Makefile

diff --git a/helm/matita/contribs/PREDICATIVE-TOPOLOGY/Makefile b/helm/matita/contribs/PREDICATIVE-TOPOLOGY/Makefile
index 43221d3caa9719f4cd078259a984a2b8ca15304b..61bec6bc9831389a363d7efaf0905327aa1449ae 100644 (file)
--- a/helm/matita/contribs/PREDICATIVE-TOPOLOGY/Makefile
+++ b/helm/matita/contribs/PREDICATIVE-TOPOLOGY/Makefile
@@ -33,7 +33,7 @@ verbose:
        $(H)$(MAKE) MATITAC='$(MATITACOPT)' MATITACLEAN='$(MATITACLEANOPT)' MATITADEP='$(MATITADEPOPT)' $(@:%.opt=%)
 
 clean_:
-       rm -r __*not_for_matita
+       rm -f __*not_for_matita
 
 clean: clean_
        $(H)$(MATITACLEAN) $(SRC)