Last update contained an error in writing database files in which

the path component of the use def was interpreted as being relative
to the parent when reading the cell def but not when writing,
resulting in paths being interpreted incorrectly.

database/databaseInt.h

@@ -29,6 +29,7 @@
 
 struct writeArg
 {
+    char       *wa_name;	/* Filename of output file */
     FILE       *wa_file;	/* File to which to output */
     TileType	wa_type;	/* Type of tile being searched for */
     bool	wa_found;	/* Have any tiles been found yet? */