March 6 (Reuters) - Canada's main stock index ended little changed on Tuesday as gains in gold producers offset weakness in energy shares and as global equities markets were supported bysigns North Korea is willing to hold talks with the UnitedStates.
* The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE unofficially closed up 3.91 points, or 0.03 percent,at 15,545.19.