};
extern int non_ascii(int);
-extern enum cmit_fmt get_commit_format(const char *arg);
+struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
+extern void get_commit_format(const char *arg, struct rev_info *);
extern void format_commit_message(const struct commit *commit,
const void *format, struct strbuf *sb);
extern void pretty_print_commit(enum cmit_fmt fmt, const struct commit*,
int in_merge_bases(struct commit *, struct commit **, int);
extern int interactive_add(int argc, const char **argv, const char *prefix);
-extern int rerere(void);
static inline int single_parent(struct commit *commit)
{