clean can't fail

diff --git a/Makefile b/Makefile
index 68921815afc2ccd5655cee83b89a974543499381..94993fd977c71ea0154056c7c0ca11b7b9f04d5f 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -27,8 +27,10 @@ else
 endif
        $(H)touch depend-stamp
 
-clean: $(foreach d,$(SUBDIRS),rec@clean@$(d))
-distclean: $(foreach d,$(SUBDIRS),rec@distclean@$(d))
+clean: 
+       $(H)make $(foreach d,$(SUBDIRS),rec@clean@$(d)) || true
+distclean: 
+       $(H)make $(foreach d,$(SUBDIRS),rec@distclean@$(d)) || true
        $(H)rm -rf .matita library-stamp depend-stamp
 install-indep: $(foreach d,$(SUBDIRS),rec@install-indep@$(d))
 install-arch: $(foreach d,$(SUBDIRS),rec@install-arch@$(d))