1 files changed, 1 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index d776016822..2e36cc5b8b 100644
--- a/cache.h
+++ b/cache.h
@@ -413,4 +413,5 @@ static inline int sane_case(int x, int high)
 	return x;
 }
 
+extern int copy_fd(int ifd, int ofd);
 #endif /* CACHE_H */