fixed -f in clean

[helm.git] / helm / matita / contribs / LAMBDA-TYPES / Makefile

diff --git a/helm/matita/contribs/LAMBDA-TYPES/Makefile b/helm/matita/contribs/LAMBDA-TYPES/Makefile
index 5e651970a0fbf8be681cb3eb66b9e8d81e317909..42bd7b8fd94f2e5935183e080dd540521f56668d 100644 (file)
--- a/helm/matita/contribs/LAMBDA-TYPES/Makefile
+++ b/helm/matita/contribs/LAMBDA-TYPES/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)