config: don't implicitly use gitdir or commondir

diff --git a/xdiff-interface.c b/xdiff-interface.c
index 060038c2d6b92512e6625d0f5d94ed5439cd249c..5ac07d7348c3c8b5cb4e4decf8a19cd3881b6c82 100644 (file)
--- a/xdiff-interface.c
+++ b/xdiff-interface.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "config.h"
 #include "xdiff-interface.h"
 #include "xdiff/xtypes.h"
 #include "xdiff/xdiffi.h"