Includes that cause compiler error messages

When syntax errors are made in the referenced files then the LST file has additional information about the name of the include file and the local line number (incerr.gms) as follows

INCLUDE    D:\GAMSPDF\TRANMODL.GMS

   15  PARAMETER COST(PLANT,MARKET)    CALCULATED COST OF MOVING GOODS;

   16             COST(PLANT,MARKET) = 50 + 1 * DISTANCE(PLANT,MARKET);

   17   POSITIVE VARIABLES

   18           SHIPMENTS(PLANT,MARKET) AMOUNT SHIPPED OVER A TRANSPORT ROUTE;

   19   VARIABLES TCOST                 TOTAL COST OF SHIPPING OVER ALL ROUTES;

   20   EQUATIONS TCOSTEQ               TOTAL COST ACCOUNTING EQUATION

   21             SUPPLYEQ(PLANT)       LIMIT ON SUPPLY AVAILABLE AT A PLANT

   22             DEMANDEQ(MARKET)      MINIMUM REQUIREMENT AT A DEMAND MARKET;

****                     $195

**** LINE      8 IN FILE D:\GAMSPDF\TRANMODL.GMS

Note here the error message indicates the error is not in line 22 of the expanded listing but rather in line 8 of the included file.  The IDE also jumps to the relevant line in the included file when the error discovery procedure is employed.