print errno when reporting a system call error

diff --git a/submodule-config.h b/submodule-config.h
index 70f19363fd8bf5b7f42e974dacdc3ed2cd58a96a..d434ecdb45c074dd386405f20ed73ac1c8b646bd 100644 (file)
--- a/submodule-config.h
+++ b/submodule-config.h
@@ -22,16 +22,17 @@ struct submodule {
        int recommend_shallow;
 };
 
-int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg);
-int parse_push_recurse_submodules_arg(const char *opt, const char *arg);
-int parse_submodule_config_option(const char *var, const char *value);
-const struct submodule *submodule_from_name(const unsigned char *commit_or_tree,
-               const char *name);
-const struct submodule *submodule_from_path(const unsigned char *commit_or_tree,
-               const char *path);
+extern int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg);
+extern int parse_update_recurse_submodules_arg(const char *opt, const char *arg);
+extern int parse_push_recurse_submodules_arg(const char *opt, const char *arg);
+extern int parse_submodule_config_option(const char *var, const char *value);
+extern const struct submodule *submodule_from_name(
+               const unsigned char *commit_or_tree, const char *name);
+extern const struct submodule *submodule_from_path(
+               const unsigned char *commit_or_tree, const char *path);
 extern int gitmodule_sha1_from_commit(const unsigned char *commit_sha1,
                                      unsigned char *gitmodules_sha1,
                                      struct strbuf *rev);
-void submodule_free(void);
+extern void submodule_free(void);
 
 #endif /* SUBMODULE_CONFIG_H */