From 32f9c76aa2b2aaf3c40b5181e62b3050a8a3b066 Mon Sep 17 00:00:00 2001
From: Harry Harpham <harry@tailscale.com>
Date: Tue, 31 Mar 2026 09:22:54 -0600
Subject: [PATCH] gokrazy: add check for qemu

This is a small quality-of-life change for natlab tests. Running the
tests without qemu results in an error reading something like 'qemu-img:
file not found', which is not too helpful if you don't know the
underlying infrastructure. With this change, the error now reads
'please install qemu'.

Updates #cleanup

Signed-off-by: Harry Harpham <harry@tailscale.com>
---
 gokrazy/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gokrazy/Makefile b/gokrazy/Makefile
index bc55f2a52..eeb63e195 100644
--- a/gokrazy/Makefile
+++ b/gokrazy/Makefile
@@ -9,5 +9,6 @@ qemu: image
 
 # For natlab integration tests:
 natlab:
+	@command -v qemu-img > /dev/null 2>&1 || { echo >&2 "please install qemu"; exit 1; }
 	go run build.go --build --app=natlabapp
 	qemu-img convert -O qcow2 natlabapp.img natlabapp.qcow2