--- a/src/industry.h Fri Sep 21 17:56:55 2007 +0000
+++ b/src/industry.h Sat Sep 22 00:59:27 2007 +0000
@@ -81,6 +81,7 @@
INDUSTRYBEH_AIRPLANE_ATTACKS = 1 << 11, ///< can be exploded by a military airplane (oil refinery)
INDUSTRYBEH_CHOPPER_ATTACKS = 1 << 12, ///< can be exploded by a military helicopter (factory)
INDUSTRYBEH_CAN_SUBSIDENCE = 1 << 13, ///< can cause a subsidence (coal mine, shaft that collapses)
+ INDUSTRYBEH_CANCLOSE_LASTINSTANCE = 1 << 17, ///< Allow closing down the last instance of this type
};