5604 widec.h should expose ws* under __EXTENSIONS__

@@ -74,11 +74,11 @@
 extern size_t   wsspn(const wchar_t *, const wchar_t *);
 extern size_t   wscspn(const wchar_t *, const wchar_t *);
 extern int      wscoll(const wchar_t *, const wchar_t *);
 extern size_t   wsxfrm(wchar_t *, const wchar_t *, size_t);
 
-#if !defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)
+#if !defined(_STRICT_SYMBOLS)
 
 extern wchar_t  *wsdup(const wchar_t *);
 extern int      wscol(const wchar_t *);
 extern double   wstod(const wchar_t *, wchar_t **);
 extern long     wstol(const wchar_t *, wchar_t **, int);

@@ -87,11 +87,11 @@
 extern int      wsprintf(wchar_t *, const char *, ...);
 #if defined(_LONGLONG_TYPE)
 extern long long        wstoll(const wchar_t *, wchar_t **, int);
 #endif  /* defined(_LONGLONG_TYPE) */
 
-#endif /* !defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX) */
+#endif /* !defined(_STRICT_SYMBOLS) */
 
 /* Returns the code set number for the process code c. */
 #define WCHAR_SHIFT     7
 #define WCHAR_S_MASK    0x7f
 #define wcsetno(c) \