Avoid to call 'go' with empty -tags argument

go1.10.1 linux/amd64 complains: flag provided but not defined: -tags when compiling with: "make build-cross dist". This seems to fix it.

Avoid to call 'go' with empty -tags argument
go1.10.1 linux/amd64 complains: flag provided but not defined: -tags when compiling with: "make build-cross dist". This seems to fix it.
6b2384f8 · Julius Kammerl · Julius Kammerl · 4d519a74 · 6b2384f8
Commit 6b2384f8 authored Apr 23, 2018 by Julius Kammerl Committed by Julius Kammerl Apr 23, 2018
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Makefile Makefile +1 -1

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--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ build:
 .PHONY: build-cross
 build-cross: LDFLAGS += -extldflags "-static"
 build-cross:
-	CGO_ENABLED=0 gox -parallel=3 -output="_dist/{{.OS}}-{{.Arch}}/{{.Dir}}" -osarch='$(TARGETS)' $(GOFLAGS) -tags '$(TAGS)' -ldflags '$(LDFLAGS)' k8s.io/helm/cmd/$(APP)
+	CGO_ENABLED=0 gox -parallel=3 -output="_dist/{{.OS}}-{{.Arch}}/{{.Dir}}" -osarch='$(TARGETS)' $(GOFLAGS) $(if $(TAGS),-tags '$(TAGS)',) -ldflags '$(LDFLAGS)' k8s.io/helm/cmd/$(APP)

 .PHONY: dist
 dist: