Fix build failure in C90 mode.

Thanks to Anders Höglund for pointing it out.

1 files changed, 2 insertions, 1 deletions

diff --git a/dominosa.c b/dominosa.c
index c75d572..67a1d69 100644
--- a/dominosa.c
+++ b/dominosa.c
@@ -2322,8 +2322,9 @@ static char *new_game_desc(const game_params *params, random_state *rs,
         }
 
         if (diff != DIFF_AMBIGUOUS) {
+            int solver_result;
             solver_setup_grid(sc, as->numbers);
-            int solver_result = run_solver(sc, diff);
+            solver_result = run_solver(sc, diff);
             if (solver_result > 1)
                 continue; /* puzzle couldn't be solved at this difficulty */
             if (sc->max_diff_used < diff)