Fix make cross

Author: hirose31

Makefile

@@ -58,8 +58,8 @@ endif
 
 .PHONY: cross
 cross: devel-deps ## build for cross platforms
-	goxz -arch amd64,arm64 -os linux,darwin -n $(BIN) -pv=v$(VERSION) -build-ldflags=$(BUILD_LDFLAGS) -trimpath .
-	goxz -arch amd64       -os windows      -n $(BIN) -pv=v$(VERSION) -build-ldflags=$(BUILD_LDFLAGS) -trimpath .
+	goxz -arch amd64,arm64 -os linux,darwin -n $(BIN) -pv=v$(VERSION) -build-ldflags=$(BUILD_LDFLAGS) -trimpath $(MAIN)
+	goxz -arch amd64       -os windows      -n $(BIN) -pv=v$(VERSION) -build-ldflags=$(BUILD_LDFLAGS) -trimpath $(MAIN)
 
 .PHONY: upload
 upload: devel-deps ## upload