The ncurses implementation still relies on _XOPEN_SOURCE_EXTENDED being
defined in order to expose the widechar variant of ncurses, even on
more recent distributed versions.
---
 tog/tog.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tog/tog.c b/tog/tog.c
index 228a76b0..5af8f69f 100644
--- a/tog/tog.c
+++ b/tog/tog.c
@@ -19,7 +19,9 @@
 
 #include <ctype.h>
 #include <errno.h>
+#define _XOPEN_SOURCE_EXTENDED
 #include <curses.h>
+#undef _XOPEN_SOURCE_EXTENDED
 #include <panel.h>
 #include <locale.h>
 #include <signal.h>
-- 
2.33.0