Add missing includes and forward declarations

I looped over the toplevel header files, creating a temporary two-line C
program for each consisting of
  #include "git-compat-util.h"
  #include $HEADER
This patch is the result of manually fixing errors in compiling those
tiny programs.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/apply.h b/apply.h
index b80d8ba736..0b70e1f3f5 100644
--- a/apply.h
+++ b/apply.h
@@ -1,6 +1,9 @@
 #ifndef APPLY_H
 #define APPLY_H
 
+#include "lockfile.h"
+#include "string-list.h"
+
 enum apply_ws_error_action {
 	nowarn_ws_error,
 	warn_on_ws_error,