AUSTEC <AIL.S> COMPLETE PURCHASE OF PRIVATE FIRM Austec International Ltd said its North American unit, Austec Inc, completed the purchase of privately-held Ryan-McFarland Corp for an undisclosed sum. The company said the two units combined are expected to have net revenues of about 25 mln dlrs in 1987. Ryan-McFarlnad develops COBOL and FORTRAN language compilers for the micro, mini and mainframe computer markets. Austec International is based in Melbourne, Australia. Ryan-McFarland is located in Rolling Hills Estates, Calif.