Make the code base clean under -Wwrite-strings.

I've also added that warning option and -Werror to the build script,
so that I'll find out if I break this property in future.

1 files changed, 2 insertions, 1 deletions

diff --git a/samegame.c b/samegame.c
index 8b31062..d7d0676 100644
--- a/samegame.c
+++ b/samegame.c
@@ -1108,7 +1108,8 @@ static void game_changed_state(game_ui *ui, const game_state *oldstate,
 static char *sel_movedesc(game_ui *ui, const game_state *state)
 {
     int i;
-    char *ret, *sep, buf[80];
+    char *ret, buf[80];
+    const char *sep;
     int retlen, retsize;
 
     retsize = 256;