(tend_nxtitem,nxtitem,sarg_type,snxtitem,snxtitem_all,snxtsct,nxtitemp):

change NS_ALL to NS_EVERYTHING in ns_seltype because of a
conflict with winsock2.h which is used in the WIN32 build.

include/nsc.h

@@ -131,7 +131,7 @@ typedef enum {
     NS_LIST,			/* list of IDs */
     NS_DIST,			/* circular area */
     NS_AREA,			/* rectangular area */
-    NS_ALL,			/* everything */
+    NS_EVERYTHING,		/* everything */
     NS_XY,			/* one sector area */
     NS_GROUP			/* group, i.e. fleet, wing, army */
 } ns_seltype;