diff --git a/doc/todo.html b/doc/todo.html
index 939a8ff1e..4083c83e8 100644
--- a/doc/todo.html
+++ b/doc/todo.html
@@ -18,7 +18,7 @@
 			  T H E   W A R   B E G I N S
 	   FreeCraft - A free fantasy real time strategy game engine
 </PRE>
-<P><B>(C) Copyright 1998-2000 by The FreeCraft Project. Distributed under the
+<P><B>(C) Copyright 1998-2001 by The FreeCraft Project. Distributed under the
 <A HREF="artistic-license.html">"Artistic License"</A></B>
 <HR>
 
@@ -27,7 +27,6 @@
 <UL>
 <LI>Ships on oil patches cannot be attacked.
 <LI>Worker with gold/wood could go to depot under construction!
-<LI>ACT Image file names cannot be used with Win32.
 <LI>Some scanline are missing with 640x480 resolution and SDL-win32.
 <LI>Worker stops, if a nearer mine cannot be reached.
 <LI>Ai can't find any way, tries this to often.
diff --git a/src/action/action_attack.cpp b/src/action/action_attack.cpp
index 20b0a9717..6bb5ac342 100644
--- a/src/action/action_attack.cpp
+++ b/src/action/action_attack.cpp
@@ -154,9 +154,7 @@ local void MoveToTarget(Unit* unit)
 	    // FIXME: Should be done by Action Move???????
 	    if( goal->Destroyed ) {
 		DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 		if( !--goal->Refs ) {
 		    ReleaseUnit(goal);
 		}
@@ -167,10 +165,9 @@ local void MoveToTarget(Unit* unit)
 		unit->Command.Data.Move.Goal=goal=NoUnitP;
 	    } else if( !goal->HP || goal->Command.Action==UnitActionDie ) {
 #endif
+		RefsDebugCheck( !goal->Refs );
 		--goal->Refs;
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 #ifdef NEW_ORDERS
 		unit->Orders[0].Goal=goal=NoUnitP;
 #else
@@ -230,10 +227,10 @@ local void MoveToTarget(Unit* unit)
 
 	    temp=AttackUnitsInReactRange(unit);
 	    if( temp && temp->Type->Priority>goal->Type->Priority ) {
+		RefsDebugCheck( !goal->Refs );
 		goal->Refs--;
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
+		RefsDebugCheck( !temp->Refs );
 		temp->Refs++;
 #ifdef NEW_ORDERS
 		if( unit->SavedOrder.Action==UnitActionStill ) {
@@ -363,9 +360,7 @@ local void AttackTarget(Unit* unit)
 	if( goal ) {
 	    if( goal->Destroyed ) {
 		DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 		if( !--goal->Refs ) {
 		    ReleaseUnit(goal);
 		}
@@ -377,10 +372,9 @@ local void AttackTarget(Unit* unit)
 	    } else if( !goal->HP || goal->Command.Action==UnitActionDie ) {
 #endif
 		// FIXME: goal->Removed???
+		RefsDebugCheck( !goal->Refs );
 		--goal->Refs;
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 #ifdef NEW_ORDERS
 		unit->Orders[0].Goal=goal=NoUnitP;
 #else
@@ -446,10 +440,9 @@ local void AttackTarget(Unit* unit)
 
 	    temp=AttackUnitsInReactRange(unit);
 	    if( temp && temp->Type->Priority>goal->Type->Priority ) {
+		RefsDebugCheck( !goal->Refs );
 		goal->Refs--;
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 		temp->Refs++;
 #ifdef NEW_ORDERS
 		if( unit->SavedOrder.Action==UnitActionStill ) {
diff --git a/src/action/action_board.cpp b/src/action/action_board.cpp
index 43143992c..d6063112e 100644
--- a/src/action/action_board.cpp
+++ b/src/action/action_board.cpp
@@ -81,9 +81,7 @@ local int WaitForTransporter(Unit* unit)
     }
     if( trans->Destroyed ) {
 	DebugLevel0Fn("Destroyed unit\n");
-#ifdef REFS_DEBUG
-	DebugCheck( !trans->Refs );
-#endif
+	RefsDebugCheck( !trans->Refs );
 	if( !--trans->Refs ) {
 	    ReleaseUnit(trans);
 	}
@@ -99,13 +97,9 @@ local int WaitForTransporter(Unit* unit)
 #else
 	    !trans->HP || trans->Command.Action==UnitActionDie ) {
 #endif
-#ifdef REFS_DEBUG
-	DebugCheck( !trans->Refs );
-#endif
+	RefsDebugCheck( !trans->Refs );
 	--trans->Refs;
-#ifdef REFS_DEBUG
-	DebugCheck( !trans->Refs );
-#endif
+	RefsDebugCheck( !trans->Refs );
 #ifdef NEW_ORDERS
 	unit->Orders[0].Goal=trans=NoUnitP;
 #else
@@ -149,9 +143,7 @@ local void EnterTransporter(Unit* unit)
 #endif
     if( transporter->Destroyed ) {
 	DebugLevel0Fn("Destroyed unit\n");
-#ifdef REFS_DEBUG
-	DebugCheck( !transporter->Refs );
-#endif
+	RefsDebugCheck( !transporter->Refs );
 	if( !--transporter->Refs ) {
 	    ReleaseUnit(transporter);
 	}
@@ -167,13 +159,9 @@ local void EnterTransporter(Unit* unit)
 #else
 	    !transporter->HP || transporter->Command.Action==UnitActionDie ) {
 #endif
-#ifdef REFS_DEBUG
-	DebugCheck( !transporter->Refs );
-#endif
+	RefsDebugCheck( !transporter->Refs );
 	--transporter->Refs;
-#ifdef REFS_DEBUG
-	DebugCheck( !transporter->Refs );
-#endif
+	RefsDebugCheck( !transporter->Refs );
 #ifdef NEW_ORDERS
 	unit->Orders[0].Goal=NoUnitP;
 #else
@@ -181,13 +169,9 @@ local void EnterTransporter(Unit* unit)
 #endif
 	return;
     }
-#ifdef REFS_DEBUG
-    DebugCheck( !transporter->Refs );
-#endif
+    RefsDebugCheck( !transporter->Refs );
     --transporter->Refs;
-#ifdef REFS_DEBUG
-    DebugCheck( !transporter->Refs );
-#endif
+    RefsDebugCheck( !transporter->Refs );
 #ifdef NEW_ORDERS
     unit->Orders[0].Goal=NoUnitP;
 #else
@@ -256,26 +240,20 @@ global void HandleActionBoard(Unit* unit)
 			    unit->Orders[0].Action=UnitActionStill;
 			    if( unit->Orders[0].Goal ) {
 
-#ifdef REFS_DEBUG
-				DebugCheck(!unit->Orders[0].Goal->Refs);
-#endif
+				RefsDebugCheck(!unit->Orders[0].Goal->Refs);
 				--unit->Orders[0].Goal->Refs;
-#ifdef REFS_DEBUG
-				DebugCheck(!unit->Orders[0].Goal->Refs);
-#endif
+				RefsDebugCheck(!unit->Orders[0].Goal->Refs);
 				unit->Orders[0].Goal=NoUnitP;
 			    }
 #else
 			    unit->Command.Action=UnitActionStill;
 			    if( unit->Command.Data.Move.Goal ) {
 
-#ifdef REFS_DEBUG
-				DebugCheck(!unit->Command.Data.Move.Goal->Refs);
-#endif
+				RefsDebugCheck(!unit->Command.Data.Move.Goal
+					->Refs);
 				--unit->Command.Data.Move.Goal->Refs;
-#ifdef REFS_DEBUG
-				DebugCheck(!unit->Command.Data.Move.Goal->Refs);
-#endif
+				RefsDebugCheck(!unit->Command.Data.Move.Goal
+					->Refs);
 				unit->Command.Data.Move.Goal=NoUnitP;
 			    }
 #endif
diff --git a/src/action/action_demolish.cpp b/src/action/action_demolish.cpp
index c2e88bd7f..970cca93d 100644
--- a/src/action/action_demolish.cpp
+++ b/src/action/action_demolish.cpp
@@ -58,7 +58,7 @@ global void HandleActionDemolish(Unit* unit)
 	//
 	case 0:
 	    // FIXME: reset first!! why? (johns)
-	    err=HandleActionMove(unit); 
+	    err=HandleActionMove(unit);
 	    if( unit->Reset ) {
 		goal=unit->Command.Data.Move.Goal;
 		//
@@ -67,9 +67,7 @@ global void HandleActionDemolish(Unit* unit)
 		if( goal ) {
 		    if( goal->Destroyed ) {
 			DebugLevel0Fn("Destroyed unit\n");
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			if( !--goal->Refs ) {
 			    ReleaseUnit(goal);
 			}
@@ -79,13 +77,9 @@ global void HandleActionDemolish(Unit* unit)
 			return;
 		    } else if( goal->Removed || !goal->HP
 				|| goal->Command.Action==UnitActionDie ) {
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			--goal->Refs;
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			unit->Command.Data.Move.Goal=goal=NoUnitP;
 			// FIXME: perhaps I should choose an alternative
 			unit->Command.Action=UnitActionStill;
@@ -119,13 +113,9 @@ global void HandleActionDemolish(Unit* unit)
 	case 1:
 	    goal=unit->Command.Data.Move.Goal;
 	    if( goal ) {
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 		--goal->Refs;
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 		unit->Command.Data.Move.Goal=NoUnitP;
 	    }
 
@@ -134,7 +124,7 @@ global void HandleActionDemolish(Unit* unit)
             DestroyUnit(unit);
 	    // FIXME: Must play explosion sound
 
-	    // 	FIXME: Currently we take the X fields, the original only the O
+	    //	FIXME: Currently we take the X fields, the original only the O
 	    //		XXXXX ..O..
 	    //		XXXXX .OOO.
 	    //		XX.XX OO.OO
@@ -148,7 +138,7 @@ global void HandleActionDemolish(Unit* unit)
             n=SelectUnits(x-2,y-2, x+2, y+2,table);
 	    // FIXME: Don't hit flying units!
             for( i=0; i<n; ++i ) {
-	    	if ( table[i]->Type->LandUnit )
+	   	if ( table[i]->Type->LandUnit )
                    HitUnit(table[i],DEMOLISH_DAMAGE);
             }
 
diff --git a/src/action/action_harvest.cpp b/src/action/action_harvest.cpp
index dfd98b6fd..417a71ec4 100644
--- a/src/action/action_harvest.cpp
+++ b/src/action/action_harvest.cpp
@@ -364,9 +364,7 @@ local int ReturnWithWood(Unit* unit)
     if( destu ) {
 	if( destu->Destroyed ) {
 	    DebugLevel0Fn("Destroyed unit\n");
-#ifdef REFS_DEBUG
-	    DebugCheck( !destu->Refs );
-#endif
+	    RefsDebugCheck( !destu->Refs );
 	    if( !--destu->Refs ) {
 		ReleaseUnit(destu);
 	    }
@@ -376,13 +374,9 @@ local int ReturnWithWood(Unit* unit)
 	    return 0;
 	} else if( destu->Removed || !destu->HP
 		|| destu->Orders[0].Action==UnitActionDie ) {
-#ifdef REFS_DEBUG
-	    DebugCheck( !destu->Refs );
-#endif
+	    RefsDebugCheck( !destu->Refs );
 	    --destu->Refs;
-#ifdef REFS_DEBUG
-	    DebugCheck( !destu->Refs );
-#endif
+	    RefsDebugCheck( !destu->Refs );
 	    unit->Orders[0].Goal=NoUnitP;
 	    // FIXME: perhaps I should choose an alternative
 	    unit->Orders[0].Action=UnitActionStill;
@@ -398,9 +392,7 @@ local int ReturnWithWood(Unit* unit)
     if( destu ) {
 	if( destu->Destroyed ) {
 	    DebugLevel0Fn("Destroyed unit\n");
-#ifdef REFS_DEBUG
-	    DebugCheck( !destu->Refs );
-#endif
+	    RefsDebugCheck( !destu->Refs );
 	    if( !--destu->Refs ) {
 		ReleaseUnit(destu);
 	    }
@@ -410,13 +402,9 @@ local int ReturnWithWood(Unit* unit)
 	    return 0;
 	} else if( destu->Removed || !destu->HP
 		    || destu->Command.Action==UnitActionDie ) {
-#ifdef REFS_DEBUG
-	    DebugCheck( !destu->Refs );
-#endif
+	    RefsDebugCheck( !destu->Refs );
 	    --destu->Refs;
-#ifdef REFS_DEBUG
-	    DebugCheck( !destu->Refs );
-#endif
+	    RefsDebugCheck( !destu->Refs );
 	    unit->Command.Data.Move.Goal=NoUnitP;
 	    // FIXME: perhaps I should choose an alternative
 	    unit->Command.Action=UnitActionStill;
@@ -424,13 +412,9 @@ local int ReturnWithWood(Unit* unit)
 	}
 	unit->Command.Data.Move.Goal=NoUnitP;
 #endif
-#ifdef REFS_DEBUG
-	DebugCheck( !destu->Refs );
-#endif
+	RefsDebugCheck( !destu->Refs );
 	--destu->Refs;
-#ifdef REFS_DEBUG
-	DebugCheck( !destu->Refs );
-#endif
+	RefsDebugCheck( !destu->Refs );
     }
 
 #ifdef NEW_ORDERS
diff --git a/src/action/action_hauloil.cpp b/src/action/action_hauloil.cpp
index ea62d8ff6..d27858d7c 100644
--- a/src/action/action_hauloil.cpp
+++ b/src/action/action_hauloil.cpp
@@ -63,9 +63,7 @@ local int MoveToOilWell(Unit* unit)
 
     well=unit->Orders[0].Goal;
     if( well && (well->Destroyed || !well->HP) ) {
-#ifdef REFS_DEBUG
-	DebugCheck( !well->Refs );
-#endif
+	RefsDebugCheck( !well->Refs );
 	if( !--well->Refs ) {
 	    ReleaseUnit(well);
 	}
@@ -87,22 +85,16 @@ local int MoveToOilWell(Unit* unit)
 	return -1;
     }
 
-#ifdef REFS_DEBUG
-    DebugCheck( !well->Refs );
-#endif
+    RefsDebugCheck( !well->Refs );
     --well->Refs;
-#ifdef REFS_DEBUG
-    DebugCheck( !well->Refs );
-#endif
+    RefsDebugCheck( !well->Refs );
     unit->Orders[0].Goal=NoUnitP;
 #else
     unit->Command.Action=UnitActionHaulOil;
 
     well=unit->Command.Data.Move.Goal;
     if( well && (well->Destroyed || !well->HP) ) {
-#ifdef REFS_DEBUG
-	DebugCheck( !well->Refs );
-#endif
+	RefsDebugCheck( !well->Refs );
 	if( !--well->Refs ) {
 	    ReleaseUnit(well);
 	}
@@ -124,13 +116,9 @@ local int MoveToOilWell(Unit* unit)
 	return -1;
     }
 
-#ifdef REFS_DEBUG
-    DebugCheck( !well->Refs );
-#endif
+    RefsDebugCheck( !well->Refs );
     --well->Refs;
-#ifdef REFS_DEBUG
-    DebugCheck( !well->Refs );
-#endif
+    RefsDebugCheck( !well->Refs );
     unit->Command.Data.Move.Goal=NoUnitP;
 #endif
 
@@ -347,9 +335,7 @@ local int MoveToOilDepot(Unit* unit)
 
     depot=unit->Orders[0].Goal;
     if( depot && (depot->Destroyed || !depot->HP) ) {
-#ifdef REFS_DEBUG
-	DebugCheck( !depot->Refs );
-#endif
+	RefsDebugCheck( !depot->Refs );
 	if( !--depot->Refs ) {
 	    ReleaseUnit(depot);
 	}
@@ -370,9 +356,7 @@ local int MoveToOilDepot(Unit* unit)
 
     depot=unit->Command.Data.Move.Goal;
     if( depot && (depot->Destroyed || !depot->HP) ) {
-#ifdef REFS_DEBUG
-	DebugCheck( !depot->Refs );
-#endif
+	RefsDebugCheck( !depot->Refs );
 	if( !--depot->Refs ) {
 	    ReleaseUnit(depot);
 	}
@@ -393,13 +377,9 @@ local int MoveToOilDepot(Unit* unit)
 
     DebugCheck( MapDistanceToUnit(unit->X,unit->Y,depot)!=1 );
 
-#ifdef REFS_DEBUG
-    DebugCheck( !depot->Refs );
-#endif
+    RefsDebugCheck( !depot->Refs );
     --depot->Refs;
-#ifdef REFS_DEBUG
-    DebugCheck( !depot->Refs );
-#endif
+    RefsDebugCheck( !depot->Refs );
     // FIXME: don't work unit->Command.Data.Move.Goal=NoUnitP;
 
     RemoveUnit(unit);
@@ -539,25 +519,17 @@ global void HandleActionHaulOil(Unit* unit)
 			unit->Orders[0].Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Orders[0].Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    --unit->Orders[0].Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    unit->Orders[0].Goal=NoUnitP;
 #else
 			unit->Command.Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Command.Data.Move.Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    --unit->Command.Data.Move.Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    unit->Command.Data.Move.Goal=NoUnitP;
 #endif
 			}
@@ -586,25 +558,17 @@ global void HandleActionHaulOil(Unit* unit)
 			unit->Orders[0].Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Orders[0].Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    --unit->Orders[0].Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    unit->Orders[0].Goal=NoUnitP;
 #else
 			unit->Command.Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Command.Data.Move.Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    --unit->Command.Data.Move.Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    unit->Command.Data.Move.Goal=NoUnitP;
 #endif
 			}
diff --git a/src/action/action_minegold.cpp b/src/action/action_minegold.cpp
index 00b3a78ec..d35555db6 100644
--- a/src/action/action_minegold.cpp
+++ b/src/action/action_minegold.cpp
@@ -60,9 +60,7 @@ local int MoveToGoldMine(Unit* unit)
     destu=unit->Orders[0].Goal;
     if( destu && (destu->Destroyed || !destu->HP) ) {
 	DebugLevel1Fn("WAIT after goldmine destroyed %d\n",unit->Wait);
-#ifdef REFS_DEBUG
-	DebugCheck( !destu->Refs );
-#endif
+	RefsDebugCheck( !destu->Refs );
 	if( !--destu->Refs ) {
 	    ReleaseUnit(destu);
 	}
@@ -81,13 +79,9 @@ local int MoveToGoldMine(Unit* unit)
     //
     // FIXME: hmmm... we're in trouble here.
     // we should check if there's still some gold left in the mine instead.
-#ifdef REFS_DEBUG
-    DebugCheck( !destu->Refs );
-#endif
+    RefsDebugCheck( !destu->Refs );
     --destu->Refs;
-#ifdef REFS_DEBUG
-    DebugCheck( !destu->Refs );
-#endif
+    RefsDebugCheck( !destu->Refs );
     unit->Orders[0].Goal=NoUnitP;
 
     destu->Data.Resource.Active++;
@@ -97,9 +91,7 @@ local int MoveToGoldMine(Unit* unit)
     destu=unit->Command.Data.Move.Goal;
     if( destu && (destu->Destroyed || !destu->HP) ) {
 	DebugLevel1Fn("WAIT after goldmine destroyed %d\n",unit->Wait);
-#ifdef REFS_DEBUG
-	DebugCheck( !destu->Refs );
-#endif
+	RefsDebugCheck( !destu->Refs );
 	if( !--destu->Refs ) {
 	    ReleaseUnit(destu);
 	}
@@ -118,13 +110,9 @@ local int MoveToGoldMine(Unit* unit)
     //
     // FIXME: hmmm... we're in trouble here.
     // we should check if there's still some gold left in the mine instead.
-#ifdef REFS_DEBUG
-    DebugCheck( !destu->Refs );
-#endif
+    RefsDebugCheck( !destu->Refs );
     --destu->Refs;
-#ifdef REFS_DEBUG
-    DebugCheck( !destu->Refs );
-#endif
+    RefsDebugCheck( !destu->Refs );
     unit->Command.Data.Move.Goal=NoUnitP;
 
     destu->Command.Data.GoldMine.Active++;
@@ -314,9 +302,7 @@ local int MoveToGoldDeposit(Unit* unit)
 
     destu=unit->Orders[0].Goal;
     if( destu && (destu->Destroyed || !destu->HP) ) {
-#ifdef REFS_DEBUG
-	DebugCheck( !destu->Refs );
-#endif
+	RefsDebugCheck( !destu->Refs );
 	if( !--destu->Refs ) {
 	    ReleaseUnit(destu);
 	}
@@ -332,9 +318,7 @@ local int MoveToGoldDeposit(Unit* unit)
 
     destu=unit->Command.Data.Move.Goal;
     if( destu && (destu->Destroyed || !destu->HP) ) {
-#ifdef REFS_DEBUG
-	DebugCheck( !destu->Refs );
-#endif
+	RefsDebugCheck( !destu->Refs );
 	if( !--destu->Refs ) {
 	    ReleaseUnit(destu);
 	}
@@ -355,13 +339,9 @@ local int MoveToGoldDeposit(Unit* unit)
 	return -1;
     }
 
-#ifdef REFS_DEBUG
-    DebugCheck( !destu->Refs );
-#endif
+    RefsDebugCheck( !destu->Refs );
     --destu->Refs;
-#ifdef REFS_DEBUG
-    DebugCheck( !destu->Refs );
-#endif
+    RefsDebugCheck( !destu->Refs );
 
     RemoveUnit(unit);
     unit->X=destu->X;
@@ -509,25 +489,17 @@ global void HandleActionMineGold(Unit* unit)
 			unit->Orders[0].Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Orders[0].Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    --unit->Orders[0].Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    unit->Orders[0].Goal=NoUnitP;
 #else
 			unit->Command.Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Command.Data.Move.Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    --unit->Command.Data.Move.Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    unit->Command.Data.Move.Goal=NoUnitP;
 #endif
 			}
@@ -561,26 +533,18 @@ global void HandleActionMineGold(Unit* unit)
 			unit->Orders[0].Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Orders[0].Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    --unit->Orders[0].Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 			    unit->Orders[0].Goal=NoUnitP;
 			}
 #else
 			unit->Command.Action=UnitActionStill;
 			unit->SubAction=0;
 			if( unit->Command.Data.Move.Goal ) {
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    --unit->Command.Data.Move.Goal->Refs;
-#ifdef REFS_DEBUG
-			    DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			    RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 			    unit->Command.Data.Move.Goal=NoUnitP;
 			}
 #endif
diff --git a/src/action/action_move.cpp b/src/action/action_move.cpp
index 6004d735a..32c68d15d 100644
--- a/src/action/action_move.cpp
+++ b/src/action/action_move.cpp
@@ -86,9 +86,7 @@ local int ActionMoveGeneric(Unit* unit,const Animation* move)
 	    // FIXME: Can't choose a better target here!
 	    if( goal->Destroyed ) {
 		DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 		if( !--goal->Refs ) {
 		    ReleaseUnit(goal);
 		}
@@ -104,13 +102,9 @@ local int ActionMoveGeneric(Unit* unit,const Animation* move)
 		    !goal->HP || goal->Command.Action==UnitActionDie ) {
 #endif
 		DebugLevel0Fn("killed unit\n");
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 		--goal->Refs;
-#ifdef REFS_DEBUG
-		DebugCheck( !goal->Refs );
-#endif
+		RefsDebugCheck( !goal->Refs );
 #ifdef NEW_ORDERS
 		unit->Orders[0].Goal=goal=NoUnitP;
 #else
diff --git a/src/action/action_repair.cpp b/src/action/action_repair.cpp
index e31f5b3e2..b485542bf 100644
--- a/src/action/action_repair.cpp
+++ b/src/action/action_repair.cpp
@@ -176,9 +176,7 @@ global int HandleActionRepair(Unit* unit)
 		if( goal ) {
 		    if( goal->Destroyed ) {
 			DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			if( !--goal->Refs ) {
 			    ReleaseUnit(goal);
 			}
@@ -198,13 +196,9 @@ global int HandleActionRepair(Unit* unit)
 				goal->Command.Action==UnitActionDie ) {
 #endif
 
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			--goal->Refs;
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			// FIXME: should I clear this here?
 #ifdef NEW_ORDERS
 			unit->Orders[0].X=goal->X;
@@ -231,13 +225,9 @@ global int HandleActionRepair(Unit* unit)
 		    DebugCheck( unit->Command.Action!=UnitActionStill );
 #endif
 		    if( goal ) {		// release reference
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			goal->Refs--;
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 #ifdef NEW_ORDERS
 			unit->Orders[0].Goal=NoUnitP;
 		    }
@@ -274,9 +264,7 @@ global int HandleActionRepair(Unit* unit)
 		if( goal ) {
 		    if( goal->Destroyed ) {
 			DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			if( !--goal->Refs ) {
 			    ReleaseUnit(goal);
 			}
@@ -314,13 +302,9 @@ global int HandleActionRepair(Unit* unit)
 		//
 		if( !goal || goal->HP >= goal->Stats->HitPoints ) {
 		    if( goal ) {		// release reference
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 			goal->Refs--;
-#ifdef REFS_DEBUG
-			DebugCheck( !goal->Refs );
-#endif
+			RefsDebugCheck( !goal->Refs );
 #ifdef NEW_ORDERS
 			unit->Orders[0].Goal=NULL;
 		    }
diff --git a/src/action/action_spellcast.cpp b/src/action/action_spellcast.cpp
index 9bc4a5ff0..d0d9a642b 100644
--- a/src/action/action_spellcast.cpp
+++ b/src/action/action_spellcast.cpp
@@ -135,7 +135,7 @@ global void HandleActionSpellCast(Unit* unit)
 		const SpellType* spell = SpellTypeById( unit->Command.Data.Move.SpellId );
 		if ( unit->Mana < spell->ManaCost )
 		  {
-   	          if( unit->Player==ThisPlayer )
+ 	          if( unit->Player==ThisPlayer )
 		    {
 		    SetMessage( "%s: not enough mana to cast spell: %s",
                                 unit->Type->Name, spell->Ident );
@@ -161,13 +161,9 @@ global void HandleActionSpellCast(Unit* unit)
 		     unit->SubAction=0;
 		     unit->Wait = 1;
 		     if ( unit->Command.Data.Move.Goal )
-#ifdef REFS_DEBUG
-			DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 		        unit->Command.Data.Move.Goal->Refs--;
-#ifdef REFS_DEBUG
-			DebugCheck( !unit->Command.Data.Move.Goal->Refs );
-#endif
+			RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 		  }
 		}
 	    break;
diff --git a/src/action/action_still.cpp b/src/action/action_still.cpp
index 2c82f1ea2..c345942c2 100644
--- a/src/action/action_still.cpp
+++ b/src/action/action_still.cpp
@@ -196,9 +196,7 @@ global void ActionStillGeneric(Unit* unit,int ground)
 	    if( temp && temp->Destroyed ) {
 		DebugLevel3Fn(" destroyed unit %Zd #%d\n"
 			,UnitNumber(temp),temp->Refs);
-#ifdef REFS_DEBUG
-		DebugCheck( !temp->Refs );
-#endif
+		RefsDebugCheck( !temp->Refs );
 		if( !--temp->Refs ) {
 		    ReleaseUnit(temp);
 		}
@@ -213,13 +211,9 @@ global void ActionStillGeneric(Unit* unit,int ground)
 		if( temp ) {
 		    DebugLevel3Fn(" old unit %Zd #%d\n"
 			    ,UnitNumber(temp),temp->Refs);
-#ifdef REFS_DEBUG
-		    DebugCheck( !temp->Refs );
-#endif
+		    RefsDebugCheck( !temp->Refs );
 		    temp->Refs--;
-#ifdef REFS_DEBUG
-		    DebugCheck( !temp->Refs );
-#endif
+		    RefsDebugCheck( !temp->Refs );
 		}
 #ifdef NEW_ORDERS
 		unit->Orders[0].Goal=goal;
@@ -245,13 +239,9 @@ global void ActionStillGeneric(Unit* unit,int ground)
 #else
 	if( (temp=unit->Command.Data.Move.Goal) ) {
 #endif
-#ifdef REFS_DEBUG
-	    DebugCheck( !temp->Refs );
-#endif
+	    RefsDebugCheck( !temp->Refs );
 	    temp->Refs--;
-#ifdef REFS_DEBUG
-	    DebugCheck( !temp->Refs );
-#endif
+	    RefsDebugCheck( !temp->Refs );
 #ifdef NEW_ORDERS
 	    unit->Orders[0].Goal=NoUnitP;
 #else
diff --git a/src/action/action_unload.cpp b/src/action/action_unload.cpp
index db3e2e2e7..79fb287ff 100644
--- a/src/action/action_unload.cpp
+++ b/src/action/action_unload.cpp
@@ -56,7 +56,7 @@ local int MoveToCoast(Unit* unit)
 	    return 0;
     }
 
-    IfDebug( 
+    IfDebug(
 	if( !CoastOnMap(unit->X,unit->Y) ) {
 	    DebugLevel2Fn("COAST NOT REACHED\n");
 	    return -1;
@@ -95,21 +95,15 @@ local void LeaveTransporter(Unit* unit)
 #endif
 	if( goal->Destroyed ) {
 	    DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-	    DebugCheck( !goal->Refs );
-#endif
+	    RefsDebugCheck( !goal->Refs );
 	    if( !--goal->Refs ) {
 		ReleaseUnit(goal);
 	    }
 	    return;
 	}
-#ifdef REFS_DEBUG
-	DebugCheck( !goal->Refs );
-#endif
+	RefsDebugCheck( !goal->Refs );
 	--goal->Refs;
-#ifdef REFS_DEBUG
-	DebugCheck( !goal->Refs );
-#endif
+	RefsDebugCheck( !goal->Refs );
 	for( i=0; i<MAX_UNITS_ONBOARD; ++i ) {
 	    if( goal==unit->OnBoard[i] ) {
 		goal->X=unit->X;
diff --git a/src/action/actions.cpp b/src/action/actions.cpp
index b302a982d..d3e89b1f7 100644
--- a/src/action/actions.cpp
+++ b/src/action/actions.cpp
@@ -126,9 +126,7 @@ local void HandleUnitAction(Unit* unit)
 	    //	Release pending references.
 	    //
 	    if( unit->Orders[0].Goal ) {
-#ifdef REFS_DEBUG
-		DebugCheck( !unit->Orders[0].Goal->Refs );
-#endif
+		RefsDebugCheck( !unit->Orders[0].Goal->Refs );
 		if( !--unit->Orders[0].Goal->Refs ) {
 		    ReleaseUnit(unit->Orders[0].Goal);
 		}
@@ -176,9 +174,7 @@ local void HandleUnitAction(Unit* unit)
 	    //	Release pending references.
 	    //
 	    if( unit->Command.Data.Move.Goal ) {
-#ifdef REFS_DEBUG
-		DebugCheck( !unit->Command.Data.Move.Goal->Refs-- );
-#endif
+		RefsDebugCheck( !unit->Command.Data.Move.Goal->Refs );
 		if !--unit->Command.Data.Move.Goal->Refs ) {
 		    ReleaseUnit(unit->Command.Data.Move.Goal);
 		}
diff --git a/src/action/command.cpp b/src/action/command.cpp
index 6071a1ace..482dab501 100644
--- a/src/action/command.cpp
+++ b/src/action/command.cpp
@@ -47,9 +47,7 @@
 local void ReleaseOrder(Order* order)
 {
     if( order->Goal ) {
-#ifdef REFS_DEBUG
-	DebugCheck( !order->Goal->Refs );
-#endif
+	RefsDebugCheck( !order->Goal->Refs );
 	if( !--order->Goal->Refs ) {
 	    ReleaseUnit(order->Goal);
 	}
diff --git a/src/include/freecraft.h b/src/include/freecraft.h
index 581f245ee..9c24aa06d 100644
--- a/src/include/freecraft.h
+++ b/src/include/freecraft.h
@@ -135,6 +135,21 @@
 
 #endif	// } !DEBUG
 
+#ifdef REFS_DEBUG	// {
+
+/**
+**	Debug check condition
+*/
+#define RefsDebugCheck(cond)	do{ if( cond ) { \
+	fprintf(stderr,"DebugCheck at %s:%d\n",__FILE__,__LINE__); \
+	abort(); } }while( 0 )
+
+#else	// }{ REFS_DEBUG
+
+#define RefsDebugCheck(cond)	/* disabled */
+
+#endif	// } !REFS_DEBUG
+
 /*============================================================================
 ==	Storage types
 ============================================================================*/
diff --git a/src/stratagus/oldmissile.cpp b/src/stratagus/oldmissile.cpp
index a526dc8ce..7173033d3 100644
--- a/src/stratagus/oldmissile.cpp
+++ b/src/stratagus/oldmissile.cpp
@@ -692,9 +692,7 @@ global void FireMissile(Unit* unit)
 	// Check if goal is correct unit.
 	if( goal->Destroyed ) {
 	    DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-	    DebugCheck( !goal->Refs );
-#endif
+	    RefsDebugCheck( !goal->Refs );
 	    if( !--goal->Refs ) {
 		ReleaseUnit(goal);
 	    }
@@ -709,13 +707,9 @@ global void FireMissile(Unit* unit)
 	}
 	if( goal->Removed ) {
 	    DebugLevel3Fn("Missile-none hits removed unit!\n");
-#ifdef REFS_DEBUG
-	    DebugCheck( !goal->Refs );
-#endif
+	    RefsDebugCheck( !goal->Refs );
 	    --goal->Refs;
-#ifdef REFS_DEBUG
-	    DebugCheck( !goal->Refs );
-#endif
+	    RefsDebugCheck( !goal->Refs );
 #ifdef NEW_ORDERS
 	    goal=unit->Orders[0].Goal=NULL;
 #else
@@ -729,13 +723,9 @@ global void FireMissile(Unit* unit)
 	if( !goal->HP || goal->Command.Action==UnitActionDie ) {
 #endif
 	    DebugLevel3Fn("Missile-none hits dead unit!\n");
-#ifdef REFS_DEBUG
-	    DebugCheck( !goal->Refs );
-#endif
+	    RefsDebugCheck( !goal->Refs );
 	    --goal->Refs;
-#ifdef REFS_DEBUG
-	    DebugCheck( !goal->Refs );
-#endif
+	    RefsDebugCheck( !goal->Refs );
 #ifdef NEW_ORDERS
 	    goal=unit->Orders[0].Goal=NULL;
 #else
@@ -761,9 +751,7 @@ global void FireMissile(Unit* unit)
 	// Check if goal is correct unit.
 	if( goal->Destroyed ) {
 	    DebugLevel0Fn("destroyed unit\n");
-#ifdef REFS_DEBUG
-	    DebugCheck( !goal->Refs );
-#endif
+	    RefsDebugCheck( !goal->Refs );
 	    if( !--goal->Refs ) {
 		ReleaseUnit(goal);
 	    }
@@ -1339,9 +1327,7 @@ global void MissileActions(void)
 
 		    unit=missile->SourceUnit;
 		    if( unit->Destroyed || !unit->HP ) {
-#ifdef REFS_DEBUG
-			DebugCheck( !unit->Refs );
-#endif
+			RefsDebugCheck( !unit->Refs );
 			if( !--unit->Refs ) {
 			    ReleaseUnit(unit);
 			}
diff --git a/src/stratagus/spells.cpp b/src/stratagus/spells.cpp
index 471106a96..a65414c53 100644
--- a/src/stratagus/spells.cpp
+++ b/src/stratagus/spells.cpp
@@ -163,21 +163,13 @@ global int SpellDeathCoilController( void* missile )
   int n;
 
   Missile* mis = (Missile*)missile;
-#ifdef REFS_DEBUG
-  DebugCheck( !mis->SourceUnit->Refs );
-#endif
+  RefsDebugCheck( !mis->SourceUnit->Refs );
   mis->SourceUnit->Refs--;
-#ifdef REFS_DEBUG
-  DebugCheck( !mis->SourceUnit->Refs );
-#endif
+  RefsDebugCheck( !mis->SourceUnit->Refs );
   if ( mis->TargetUnit ) {
-#ifdef REFS_DEBUG
-    DebugCheck( !mis->TargetUnit->Refs );
-#endif
+    RefsDebugCheck( !mis->TargetUnit->Refs );
     mis->TargetUnit->Refs--;
-#ifdef REFS_DEBUG
-    DebugCheck( !mis->TargetUnit->Refs );
-#endif
+    RefsDebugCheck( !mis->TargetUnit->Refs );
   }
   if ( mis->X == mis->DX && mis->Y == mis->DY )
     { // missile has reached target unit/spot
@@ -212,7 +204,7 @@ global int SpellDeathCoilController( void* missile )
 	            && table[i]->Type->Organic != 0);
 	  if ( ec > 0 )
 	    { // yes organic enemies found
-  	    for( i=0; i<n; ++i )
+	    for( i=0; i<n; ++i )
 	      if ( IsEnemy(mis->SourceUnit->Player,table[i])
 	            && table[i]->Type->Organic != 0 )
 	        {
@@ -227,7 +219,7 @@ global int SpellDeathCoilController( void* missile )
 		else
 		  table[i]->HP = hp;
 		}
-  	    mis->SourceUnit->HP += 50;
+	    mis->SourceUnit->HP += 50;
 	    if ( mis->SourceUnit->HP > mis->SourceUnit->Stats->HitPoints )
 	      mis->SourceUnit->HP = mis->SourceUnit->Stats->HitPoints;
 	    }
@@ -505,7 +497,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
          break;
 //  ---human mages---
     case SpellActionFireball:
-    	   { //NOTE: fireball can be casted on spot
+	   { //NOTE: fireball can be casted on spot
 	   Missile* mis;
 	   int sx = unit->X;
 	   int sy = unit->Y;
@@ -530,7 +522,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
 
 	   unit->Mana -= spell->ManaCost;
 
-  	   PlayGameSound(SoundIdForName(spell->Casted.Name),MaxSampleVolume); \
+	   PlayGameSound(SoundIdForName(spell->Casted.Name),MaxSampleVolume); \
 	   mis = MakeMissile( MissileTypeByIdent("missile-fireball"),
 	                sx, sy, dx, dy );
 
@@ -595,7 +587,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
          DebugCheck( unit->Mana < 0 );
          break;
     case SpellActionBlizzard:
-    	 {
+	 {
 	 /*
 	   NOTE: vladi: blizzard differs than original in this way:
 	         original: launches 50 shards at 5 random spots x 10 for 25 mana
@@ -678,7 +670,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
          break;
 //  ---orc death knights---
     case SpellActionDeathCoil:
-    	 if( (target && target->Type->Organic) || (!target) )
+	 if( (target && target->Type->Organic) || (!target) )
 	   {
 	   Missile* mis;
 	   int sx = unit->X;
@@ -694,7 +686,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
 
 	   unit->Mana -= spell->ManaCost;
 
-  	   PlayGameSound(SoundIdForName(spell->Casted.Name),MaxSampleVolume); \
+	   PlayGameSound(SoundIdForName(spell->Casted.Name),MaxSampleVolume); \
 	   mis = MakeMissile( MissileTypeByIdent("missile-death-coil"),
 	                sx*TileSizeX+TileSizeX/2,
 	                sy*TileSizeX+TileSizeX/2,
@@ -706,7 +698,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
 	   if (target)
 	     {
 	     mis->TargetUnit = target;
-  	     target->Refs++;
+	     target->Refs++;
 	     }
 	   mis->Controller = SpellDeathCoilController;
 	   }
@@ -739,13 +731,13 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
 		    || Units[i]->Command.Action==UnitActionDie)
 		      && Units[i]->X == x && Units[i]->Y == y ) {
 #endif
- 	           //FIXME: URGENT: remove corpse
+	           //FIXME: URGENT: remove corpse
 		   //RemoveUnit( Units[i] );
 	           //UnitLost( Units[i] );
 	           //ReleaseUnit( Units[i] );
 	           MakeUnitAndPlace( x, y, UnitTypeByIdent("unit-skeleton"),
 	                             unit->Player );
-  	           unit->Mana -= spell->ManaCost;
+	           unit->Mana -= spell->ManaCost;
 	           break;
 	        }
 	   }
@@ -759,7 +751,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
 	   Missile* mis;
 	   unit->Mana -= spell->ManaCost;
 
-  	   PlayGameSound(SoundIdForName(spell->Casted.Name),MaxSampleVolume); \
+	   PlayGameSound(SoundIdForName(spell->Casted.Name),MaxSampleVolume); \
 	   mis = MakeMissile( MissileTypeByIdent("missile-whirlwind"),
 	                x*TileSizeX+TileSizeX/2,
 	                y*TileSizeX+TileSizeX/2,
@@ -783,7 +775,7 @@ global int SpellCast( int SpellId, Unit* unit, Unit* target, int x, int y )
          DebugCheck( unit->Mana < 0 );
          break;
     case SpellActionDeathAndDecay:
-    	 {
+	 {
 	 /*
 	   See notes about Blizzard spell above...
 	 */
diff --git a/src/unit/unit.cpp b/src/unit/unit.cpp
index ff1ef2858..45e49e650 100644
--- a/src/unit/unit.cpp
+++ b/src/unit/unit.cpp
@@ -151,9 +151,7 @@ global void ReleaseUnit(Unit* unit)
 	}
     }
 
-#ifdef REFS_DEBUG
-    DebugCheck( unit->Refs );
-#endif
+    RefsDebugCheck( unit->Refs );
 
 #ifdef UNIT_ON_MAP
     if( 0 ) {		// debug check
@@ -2268,10 +2266,10 @@ global void HitUnit(Unit* unit,int damage)
 
     DebugCheck( damage==0 || unit->HP==0 || unit->Type->Vanishes );
 
-    if ( unit->UnholyArmor > 0 )
-      { //NOTE: vladi: units with active UnholyArmour are invulnerable
-      return;
-      }
+    if ( unit->UnholyArmor > 0 ) {
+	// vladi: units with active UnholyArmour are invulnerable
+	return;
+    }
 
     type=unit->Type;
     if( !unit->Attacked ) {