openvswitch.h: rename hash action definition
[sliver-openvswitch.git] / Makefile.am
index e9ca26a..80619fb 100644 (file)
@@ -247,7 +247,7 @@ thread-safety-check:
        @if test -e '$(srcdir)'/.git && (git --version) >/dev/null 2>&1 && \
           grep -n -f '$(srcdir)'/build-aux/thread-safety-blacklist \
               `git ls-files '$(srcdir)' | grep '\.[ch]$$' \
-                | $(EGREP) -v '^datapath|^lib/sflow|^third-party'` \
+                | $(EGREP) -v '^datapath|^lib/sflow|^third-party'` /dev/null \
               | $(EGREP) -v ':[        ]*/?\*'; \
        then \
            echo "See above for list of calls to functions that are"; \