rerere: don't segfault on failure to open rr-cache

diff --git a/advice.h b/advice.h
index e9df8e026c301767b12217ba0374860a15742f2e..3de5000d8cb35c1d2c31867b942a54b487bed836 100644 (file)
--- a/advice.h
+++ b/advice.h
@@ -3,6 +3,7 @@
 
 extern int advice_push_nonfastforward;
 extern int advice_status_hints;
+extern int advice_commit_before_merge;
 
 int git_default_advice_config(const char *var, const char *value);