am: improve author-script error reporting

diff --git a/builtin/merge.c b/builtin/merge.c
index 8d85d31a61b8fbb53b04a9f506c0d7aca93e35d9..e331ca6d481005f6122fa6fda6075728f893632d 100644 (file)
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -36,6 +36,7 @@
 #include "packfile.h"
 #include "tag.h"
 #include "alias.h"
+#include "commit-reach.h"
 
 #define DEFAULT_TWOHEAD (1<<0)
 #define DEFAULT_OCTOPUS (1<<1)