struct diff_options;
+void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
+ const char *path);
+void gitmodules_config();
+int parse_submodule_config_option(const char *var, const char *value);
void handle_ignore_submodules_arg(struct diff_options *diffopt, const char *);
void show_submodule_summary(FILE *f, const char *path,
unsigned char one[20], unsigned char two[20],