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-rw-r--r--iconv/gconv.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/iconv/gconv.h b/iconv/gconv.h
index 879db49e1c..83f7a99541 100644
--- a/iconv/gconv.h
+++ b/iconv/gconv.h
@@ -26,6 +26,9 @@
 
 __BEGIN_DECLS
 
+/* ISO 10646 value used to signal invalid value.  */
+#define UNKNOWN_10646_CHAR	((wchar_t) 0xfffd)
+
 /* Error codes for gconv functions.  */
 enum
 {