vis: clean up interaction between vis and ui

A concrete user interface implementation should not have to depend
on libtermkey. Therefore the vis core now uses an independent instance
to parse keys.

1 files changed, 1 insertions, 0 deletions

diff --git a/main.c b/main.c
index 6556700..eb98d44 100644
--- a/main.c
+++ b/main.c
@@ -4,6 +4,7 @@
 #include <wchar.h>
 #include <ctype.h>
 #include <errno.h>
+#include <stdlib.h>
 
 #include "ui-curses.h"
 #include "vis.h"