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-rw-r--r--libio/getwchar_u.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/getwchar_u.c b/libio/getwchar_u.c
index 77138ee33d..97bb244c66 100644
--- a/libio/getwchar_u.c
+++ b/libio/getwchar_u.c
@@ -30,7 +30,7 @@
 #undef getwchar_unlocked
 
 wint_t
-getwchar_unlocked ()
+getwchar_unlocked (void)
 {
   return _IO_getwc_unlocked (_IO_stdin);
 }