Cross-compile build fixes

recover was not being built correctly under cross compilation

sys/unix/Makefile.top

@@ -118,6 +118,8 @@ DAT = $(DATNODLB) $(DATDLB)
 #	 $(CHGRP) $(GAMEGRP) $(INSTDIR)/sysconf && \
 #	 chmod $(VARFILEPERM) $(INSTDIR)/sysconf; fi );
 
+RECOVERBIN = recover
+
 # Lua
 LUAHEADERS = lib/lua-$(LUA_VERSION)/src
 LUATESTTARGET = $(LUAHEADERS)/lua.h
@@ -283,7 +285,7 @@ package: $(GAME) recover $(VARDAT) spec_levs
 # recover can be used when INSURANCE is defined in include/config.h
 # and the checkpoint option is true
 recover: $(GAME)
-	( cd util ; $(MAKE) recover )
+	( cd util ; $(MAKE) $(RECOVERBIN) )
 
 dofiles:
 	target=`sed -n					\