make_mirror.sh: only replace mini-httpd config in qcow image if HAVE_QEMU = yes

make_mirror.sh

@@ -361,6 +361,7 @@ END
 	done
 done
 
+if [ "$HAVE_QEMU" = "yes" ]; then
 	# now replace the minihttpd config with one that serves the new repository
 	# create a temporary directory because "copy-in" cannot rename the file
 	tmpdir="$(mktemp -d)"
@@ -371,6 +372,7 @@ END
 	guestfish -a "$newcachedir/debian-unstable.qcow" -i copy-in "$tmpdir/mini-httpd" /etc/default
 	rm "$tmpdir/mini-httpd"
 	rmdir "$tmpdir"
+fi
 
 # delete possibly leftover symlink
 if [ -e ./shared/cache.tmp ]; then