c - gcc 警告: 互換性のないポインター型

Question

私のコードには次のものがあります。

char DRAW_EX[DRAW_HEIGHT][DRAW_WIDTH] = {
        "*     *",
        " *   * ",
        "   *   ",
        " *   * ",
        "*     *"
           };
char DRAW_CIRCLE[DRAW_HEIGHT][DRAW_WIDTH] = {
        "  ***  ",
        " *   * ",
        "*     *",
        " *   * ",
        "  ***  "
           };
char DRAW_EMPTY[DRAW_HEIGHT][DRAW_WIDTH] = {
        "       ",
        "       ",
        "       ",
        "       ",
        "       "
           };

そして、私に警告を与える行は次のとおりです。

char** leftDraw;
leftDraw = board[i][0]==EMPTY?DRAW_EMPTY:(board[i][0]==SHAPE_O?DRAW_CIRCLE:DRAW_EX);

警告は次のとおりです。

warning: assignment from incompatible pointer type [enabled by default]

私は何を間違っていますか？