-/* From source.c */
-
-/* See openp function definition for their description. */
-#define OPF_TRY_CWD_FIRST 0x01
-#define OPF_SEARCH_IN_PATH 0x02
-#define OPF_RETURN_REALPATH 0x04
-
-extern int openp (const char *, int, const char *, int, char **);
-
-extern int source_full_path_of (const char *, char **);
-
-extern void mod_path (const char *, char **);
-
-extern void add_path (const char *, char **, int);
-
-extern void directory_switch (const char *, int);
-
-extern char *source_path;
-
-extern void init_source_path (void);
-