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-rw-r--r--usr.bin/ul/ul.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/usr.bin/ul/ul.c b/usr.bin/ul/ul.c
index 725fc25..77559cf 100644
--- a/usr.bin/ul/ul.c
+++ b/usr.bin/ul/ul.c
@@ -53,6 +53,7 @@ static const char rcsid[] =
#include <termcap.h>
#include <unistd.h>
#include <wchar.h>
+#include <wctype.h>
#define IESC '\033'
#define SO '\016'
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