Makefile: help people who run 'make check' by mistake

diff --git a/csum-file.h b/csum-file.h
index 72c9487f4fd9fcab5e02fc2dc6afd3cb7f9c036a..01f13b550118769ed7fbe35fce9bd8c91d87e42d 100644 (file)
--- a/csum-file.h
+++ b/csum-file.h
@@ -24,6 +24,7 @@ extern struct sha1file *sha1fd(int fd, const char *name);
 extern struct sha1file *sha1fd_throughput(int fd, const char *name, struct progress *tp);
 extern int sha1close(struct sha1file *, unsigned char *, unsigned int);
 extern int sha1write(struct sha1file *, void *, unsigned int);
+extern void sha1flush(struct sha1file *f);
 extern void crc32_begin(struct sha1file *);
 extern uint32_t crc32_end(struct sha1file *);