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Diffstat (limited to 'csum-file.h')
-rw-r--r--csum-file.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/csum-file.h b/csum-file.h
index 776cfb152a..3ad1a992a7 100644
--- a/csum-file.h
+++ b/csum-file.h
@@ -11,7 +11,7 @@ struct sha1file {
};
extern struct sha1file *sha1fd(int fd, const char *name);
-extern struct sha1file *sha1create(const char *fmt, ...);
+extern struct sha1file *sha1create(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
extern int sha1close(struct sha1file *, unsigned char *, int);
extern int sha1write(struct sha1file *, void *, unsigned int);
extern int sha1write_compressed(struct sha1file *, void *, unsigned int);