diff --git a/stl/inc/xiosbase b/stl/inc/xiosbase
index 18757872140..2cb71f18821 100644
--- a/stl/inc/xiosbase
+++ b/stl/inc/xiosbase
@@ -94,82 +94,6 @@ public:
     static constexpr int _Default_open_prot = _SH_DENYNO; // constant for default file opening protection
 };
 
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::skipws;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::unitbuf;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::uppercase;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::showbase;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::showpoint;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::showpos;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::left;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::right;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::internal;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::dec;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::oct;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::hex;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::scientific;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::fixed;
-
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::hexfloat; // TRANSITION, ABI, GH-3296
-
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::boolalpha;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::_Stdio;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::adjustfield;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::basefield;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Fmtflags _Iosb<_Dummy>::floatfield;
-
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Iostate _Iosb<_Dummy>::goodbit;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Iostate _Iosb<_Dummy>::eofbit;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Iostate _Iosb<_Dummy>::failbit;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Iostate _Iosb<_Dummy>::badbit;
-
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::in;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::out;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::ate;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::app;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::trunc;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::_Nocreate;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::_Noreplace;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Openmode _Iosb<_Dummy>::binary;
-
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Seekdir _Iosb<_Dummy>::beg;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Seekdir _Iosb<_Dummy>::cur;
-template <class _Dummy>
-const typename _Iosb<_Dummy>::_Seekdir _Iosb<_Dummy>::end;
-
 _EXPORT_STD extern "C++" class _CRTIMP2_PURE_IMPORT ios_base : public _Iosb<int> { // base class for ios
 public:
     using fmtflags = int;