From 8f95d4fcd458eb7edb5a56fc7f4daae92725804f Mon Sep 17 00:00:00 2001
From: SuperQ <superq@gmail.com>
Date: Mon, 6 Apr 2026 10:14:43 +0200
Subject: [PATCH] Fix Makefile.common for no Dockerfile

Avoid trying to parse a non-existent Dockerfile by adding the base
variant into the wildcard function list. This avoids `sed` errors on
repos with no Dockerfile. (i.e. promu)

Signed-off-by: SuperQ <superq@gmail.com>
---
 Makefile.common | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile.common b/Makefile.common
index cce3ef1d16..f8d0172026 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -91,7 +91,7 @@ $(error DOCKERFILE_PATH is deprecated. Use DOCKERFILE_VARIANTS ?= $(DOCKERFILE_P
 endif
 
 DOCKER_ARCHS            ?= amd64
-DOCKERFILE_VARIANTS     ?= Dockerfile $(wildcard Dockerfile.*)
+DOCKERFILE_VARIANTS     ?= $(wildcard Dockerfile Dockerfile.*)
 
 # Function to extract variant from Dockerfile label.
 # Returns the variant name from io.prometheus.image.variant label, or "default" if not found.