-Time-stamp: <2006-05-04 20:39:17 blp>
+Time-stamp: <2006-05-04 21:46:50 blp>
Procedure processing:
* LAG need not be as much of a special case.
+* Push PROCESS IF, FILTER, N OF CASES out of procedure.c.
+
* Change sources into state machines?
Get rid of need for GNU diff in `make check'.