Merge pull request thesofproject#102 from sstancioiu/feature/sstancio…

…iu/remove-dirname-error-msg

tools:labs: Add --no-run-if-empty option to xargs

tools/labs/Makefile

@@ -14,11 +14,11 @@ skels:
 skels/Kbuild:
 	echo "# autogenerated, do not edit " > $@
 	echo "ccflags-y += -Wno-unused-function -Wno-unused-label -Wno-unused-variable " >> $@
-	for i in $(shell cd skels && find -mindepth 1 -name Kbuild | xargs dirname); do echo "obj-m += $$i/" >> $@; done
+	for i in $(shell cd skels && find -mindepth 1 -name Kbuild | xargs --no-run-if-empty dirname); do echo "obj-m += $$i/" >> $@; done
 
 build: $(KCONFIG) skels/Kbuild
 	$(MAKE) -C $(KDIR) M=$(KDIR)/tools/labs/skels ARCH=$(ARCH) modules
-	for i in $(shell find skels -name Makefile | xargs dirname); do $(MAKE) -C $$i; done
+	for i in $(shell find skels -name Makefile | xargs --no-run-if-empty dirname); do $(MAKE) -C $$i; done
 
 TEMPDIR := $(shell mktemp -u)