Dept of second thoughts: don't expose rijndael.tbl: rijndael.c dependency

to make.  We ship the table file in the tarball and so this dependency
just opens file timestamp skew problems without doing anything useful.
(Not that it should hurt, either ... except for cross-compile builds.)

contrib/pgcrypto/Makefile

 #
-# $PostgreSQL: pgsql/contrib/pgcrypto/Makefile,v 1.15 2005/07/05 23:13:57 tgl Exp $
+# $PostgreSQL: pgsql/contrib/pgcrypto/Makefile,v 1.16 2005/07/05 23:18:44 tgl Exp $
 #
 
 # if you don't have OpenSSL, you can use libc random() or /dev/urandom
@@ -59,6 +59,6 @@ endif
 
 rijndael.o: rijndael.tbl
 
-rijndael.tbl: rijndael.c
+rijndael.tbl:
 	$(CC) $(CPPFLAGS) $(CFLAGS) -DPRINT_TABS rijndael.c -o gen-rtab
 	./gen-rtab > rijndael.tbl