Appyling the actual fix for DanielĀ“s patch.
diff --git a/tools/netpipe-2.4/Makefile b/tools/netpipe-2.4/Makefile
index 8a8df37..8184449 100644
--- a/tools/netpipe-2.4/Makefile
+++ b/tools/netpipe-2.4/Makefile
@@ -27,7 +27,7 @@
 all:	$(TARGETS)
 
 install:
-	@/bin/sh chmod 755 netpipe.sh
+	@/bin/chmod 755 netpipe.sh
 	@ln -f $(TARGETS) netpipe.sh ../../testcases/bin/
 #
 # This section of the Makefile is for compiling the binaries