build cni binary with static libraries (k8snetworkplumbingwg#119)

Author: zshi-redhat

Makefile

@@ -63,7 +63,7 @@ build: $(BUILDDIR)/$(BINARY_NAME) | ; $(info Building $(BINARY_NAME)...)
 	$(info Done!)
 
 $(BUILDDIR)/$(BINARY_NAME): $(GOFILES) | $(BUILDDIR)
-	@cd $(BASE)/cmd/$(BINARY_NAME) && $(GO) build $(LDFLAGS) -o $(BUILDDIR)/$(BINARY_NAME) -v
+	@cd $(BASE)/cmd/$(BINARY_NAME) && CGO_ENABLED=0 $(GO) build $(LDFLAGS) -o $(BUILDDIR)/$(BINARY_NAME) -tags no_openssl -v
 
 
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