This is to track the regression introduced in master, which needs fixing for 0.14. See #9240, #9371, etc.
class CBlockIndex;
inline double AllowFreeThreshold()
{
    return COIN * 144 / 250;
}
inline bool AllowFree(double dPriority)
{
    
    
    return dPriority > AllowFreeThreshold();
}
static const unsigned int MEMPOOL_HEIGHT = 0x7FFFFFFF;
struct LockPoints
{
    
    
    
    int height;
    int64_t time;
    
    
    
    CBlockIndex* maxInputBlock;
    LockPoints() : height(0), time(0), maxInputBlock(NULL) { }
};
class CTxMemPool;