diff --git a/Makefile.in b/Makefile.in
index 7abe64d..ac3e3fb 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -257,6 +257,7 @@ N2N_COMMIT_HASH=@GIT_REVISION@
 default: steps
 
 steps:
+	$(info This code appears to have been bitrotted since 2019 - please let us know if you are using it)
 	if [ "$(TARGET_ARCHITECTURE)" = "arm32v7" ] || [ "$(TARGET_ARCHITECTURE)" = "" ]; then DOCKER_IMAGE_FILENAME="Dockerfile.arm32v7" DOCKER_IMAGE_TAGNAME=$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_VERSION)-arm32v7 make build; fi
 	if [ "$(TARGET_ARCHITECTURE)" = "x86_64" ] || [ "$(TARGET_ARCHITECTURE)" = "" ]; then DOCKER_IMAGE_FILENAME="Dockerfile.x86_64" DOCKER_IMAGE_TAGNAME=$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_VERSION)-x86_64 make build; fi