gui/options-dialog: prevent escape key closing on Linux

The escape key closed the dialog but prevented save/cancel hooks from
being run. Now we get the hooks running twice but it's better than not
at all.

1 files changed, 1 insertions, 0 deletions

diff --git a/gui/options-dialog.hpp b/gui/options-dialog.hpp
index 8c62b278..e9359b6d 100644
--- a/gui/options-dialog.hpp
+++ b/gui/options-dialog.hpp
@@ -23,6 +23,7 @@ private:
 private slots:
     void doOK();
     void doCancel();
+    void done(int res) override;
     void bind_key(key_opts &kopts, QLabel* label);
     void set_disable_translation_state(bool value);
 };