X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/7ab28913e99672459fcd86ae5eb6121e3b409623..e1f3c70792cacbc9f081f56294b132d9ffbd71f0:/twiddle.c

diff --git a/twiddle.c b/twiddle.c
index 51a21f0..b5b276f 100644
--- a/twiddle.c
+++ b/twiddle.c
@@ -640,7 +640,7 @@ struct game_drawstate {
     int cur_x, cur_y;
 };
 
-static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
+static char *interpret_move(game_state *state, game_ui *ui, const game_drawstate *ds,
 			    int x, int y, int button)
 {
     int w = state->w, h = state->h, n = state->n /* , wh = w*h */;