1 files changed, 11 insertions, 4 deletions

diff --git a/include/inttypes.h b/include/inttypes.h
index 05171a6c9d426..9aad660eb28de 100644
--- a/include/inttypes.h
+++ b/include/inttypes.h
@@ -32,6 +32,13 @@
 #include <machine/_inttypes.h>
 #include <sys/stdint.h>
 
+#ifndef	__cplusplus
+#ifndef _WCHAR_T_DECLARED
+typedef	__wchar_t	wchar_t;
+#define	_WCHAR_T_DECLARED
+#endif
+#endif
+
 typedef struct {
 	intmax_t	quot;		/* Quotient. */
 	intmax_t	rem;		/* Remainder. */
@@ -43,10 +50,10 @@ imaxdiv_t	imaxdiv(intmax_t, intmax_t) __pure2;
 
 intmax_t	strtoimax(const char * __restrict, char ** __restrict, int);
 uintmax_t	strtoumax(const char * __restrict, char ** __restrict, int);
-intmax_t	wcstoimax(const __wchar_t * __restrict,
-		    __wchar_t ** __restrict, int);
-uintmax_t	wcstoumax(const __wchar_t * __restrict,
-		    __wchar_t ** __restrict, int);
+intmax_t	wcstoimax(const wchar_t * __restrict,
+		    wchar_t ** __restrict, int);
+uintmax_t	wcstoumax(const wchar_t * __restrict,
+		    wchar_t ** __restrict, int);
 __END_DECLS
 
 #endif /* !_INTTYPES_H_ */