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-rw-r--r--wcsmbs/mbrtowc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/wcsmbs/mbrtowc.c b/wcsmbs/mbrtowc.c
index 17083196bd..2c4b0779da 100644
--- a/wcsmbs/mbrtowc.c
+++ b/wcsmbs/mbrtowc.c
@@ -20,6 +20,8 @@ Boston, MA 02111-1307, USA.  */
 #include <wchar.h>
 
 
+static mbstate_t internal;
+
 size_t
 mbrtowc (pwc, s, n, ps)
      wchar_t *pwc;
@@ -29,6 +31,9 @@ mbrtowc (pwc, s, n, ps)
 {
   wchar_t to_wide;
 
+  if (ps == NULL)
+    ps = &internal;
+
   /*************************************************************\
   |* This is no complete implementation.  While the multi-byte *|
   |* character handling is not finished this will do.	       *|