(svn r18783) -Codechange: make CheckCompanyHasMoney set an error on the CommandCost it tests when you don't have enough money instead of setting a global variable.

src/functions.h

@@ -23,7 +23,7 @@ void DrawClearLandFence(const TileInfo *ti);
 void TileLoopClearHelper(TileIndex tile);
 
 /* company_cmd.cpp */
-bool CheckCompanyHasMoney(CommandCost cost);
+bool CheckCompanyHasMoney(CommandCost &cost);
 void SubtractMoneyFromCompany(CommandCost cost);
 void SubtractMoneyFromCompanyFract(CompanyID company, CommandCost cost);
 bool CheckOwnership(Owner owner, TileIndex tile = 0);