1 files changed, 4 insertions, 2 deletions
diff --git a/file.h b/file.h
index 38ca06e..f6aac76 100644
--- a/file.h
+++ b/file.h
@@ -69,9 +69,11 @@ char   *
 file_get_basename(const struct file *);
 
 /*
- * Build the data path (on the filesystem) for a file.
+ * Build the data path (on the filesystem) for a file and optionally append
+ * another component to the path. If no additional component is needed, it
+ * should be NULL.
  */
 size_t
-file_get_data_path(const struct file *, char *, size_t);
+file_get_data_path(const struct file *, char *, size_t, char *);
 
 #endif				/* FILE_H */