ls-files: don't try to prune an empty index

diff --git a/builtin/tag.c b/builtin/tag.c
index 1f74a56db749a5e1ffa06715e347cdc1b041033b..01154ea8dcca869ed635eb433d5afe879b8e883c 100644 (file)
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -7,6 +7,7 @@
  */
 
 #include "cache.h"
+#include "config.h"
 #include "builtin.h"
 #include "refs.h"
 #include "tag.h"