Makefile: fix 'clean' target to work even if there's nothing to clean

diff --git a/Makefile b/Makefile
index acba601b8563599c6457a4198aa61851940dfc1c..5e5c465d3755b26215b0347a47cbf6bba2f7872c 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -206,7 +206,7 @@ clean: clean-zfec clean-foolscap
        rm -rf build
        rm -f debian
        rm -rf instdir
-       find src/allmydata -name '*.so' -print0 |xargs -0 rm
+       -find src/allmydata -name '*.so' -print0 |xargs -0 -r rm
 
 install: 
        cd src/zfec && python ./setup.py install && cd ../..