diff --git a/mingw-w64-headers/crt/stdlib.h b/mingw-w64-headers/crt/stdlib.h
index a9155e6..e2ef8f7 100644
--- a/mingw-w64-headers/crt/stdlib.h
+++ b/mingw-w64-headers/crt/stdlib.h
@@ -350,10 +350,10 @@
   /*unsigned long __cdecl _byteswap_ulong (unsigned long _Long); */
   __MINGW_EXTENSION unsigned __int64 __cdecl _byteswap_uint64(unsigned __int64 _Int64);
   div_t __cdecl div(int _Numerator,int _Denominator);
-  char *__cdecl getenv(const char *_VarName);
+  char *__cdecl getenv(const char *_VarName) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   _CRTIMP char *__cdecl _itoa(int _Value,char *_Dest,int _Radix);
-  __MINGW_EXTENSION _CRTIMP char *__cdecl _i64toa(__int64 _Val,char *_DstBuf,int _Radix);
-  __MINGW_EXTENSION _CRTIMP char *__cdecl _ui64toa(unsigned __int64 _Val,char *_DstBuf,int _Radix);
+  __MINGW_EXTENSION _CRTIMP char *__cdecl _i64toa(__int64 _Val,char *_DstBuf,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  __MINGW_EXTENSION _CRTIMP char *__cdecl _ui64toa(unsigned __int64 _Val,char *_DstBuf,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   __MINGW_EXTENSION _CRTIMP __int64 __cdecl _atoi64(const char *_String);
   __MINGW_EXTENSION _CRTIMP __int64 __cdecl _atoi64_l(const char *_String,_locale_t _Locale);
   __MINGW_EXTENSION _CRTIMP __int64 __cdecl _strtoi64(const char *_String,char **_EndPtr,int _Radix);
@@ -361,7 +361,7 @@
   __MINGW_EXTENSION _CRTIMP unsigned __int64 __cdecl _strtoui64(const char *_String,char **_EndPtr,int _Radix);
   __MINGW_EXTENSION _CRTIMP unsigned __int64 __cdecl _strtoui64_l(const char *_String,char **_EndPtr,int _Radix,_locale_t _Locale);
   ldiv_t __cdecl ldiv(long _Numerator,long _Denominator);
-  _CRTIMP char *__cdecl _ltoa(long _Value,char *_Dest,int _Radix);
+  _CRTIMP char *__cdecl _ltoa(long _Value,char *_Dest,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   int __cdecl mblen(const char *_Ch,size_t _MaxCount);
   _CRTIMP int __cdecl _mblen_l(const char *_Ch,size_t _MaxCount,_locale_t _Locale);
   _CRTIMP size_t __cdecl _mbstrlen(const char *_Str);
@@ -391,11 +391,11 @@
 #define _CRT_SYSTEM_DEFINED
   int __cdecl system(const char *_Command);
 #endif
-  _CRTIMP char *__cdecl _ultoa(unsigned long _Value,char *_Dest,int _Radix);
-  int __cdecl wctomb(char *_MbCh,wchar_t _WCh);
-  _CRTIMP int __cdecl _wctomb_l(char *_MbCh,wchar_t _WCh,_locale_t _Locale);
-  size_t __cdecl wcstombs(char *_Dest,const wchar_t *_Source,size_t _MaxCount);
-  _CRTIMP size_t __cdecl _wcstombs_l(char *_Dest,const wchar_t *_Source,size_t _MaxCount,_locale_t _Locale);
+  _CRTIMP char *__cdecl _ultoa(unsigned long _Value,char *_Dest,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  int __cdecl wctomb(char *_MbCh,wchar_t _WCh) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP int __cdecl _wctomb_l(char *_MbCh,wchar_t _WCh,_locale_t _Locale) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  size_t __cdecl wcstombs(char *_Dest,const wchar_t *_Source,size_t _MaxCount) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP size_t __cdecl _wcstombs_l(char *_Dest,const wchar_t *_Source,size_t _MaxCount,_locale_t _Locale) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
 
 #ifndef _CRT_ALLOCATION_DEFINED
 #define _CRT_ALLOCATION_DEFINED
@@ -424,9 +424,9 @@
 #ifndef _WSTDLIB_DEFINED
 #define _WSTDLIB_DEFINED
 
-  _CRTIMP wchar_t *__cdecl _itow(int _Value,wchar_t *_Dest,int _Radix);
-  _CRTIMP wchar_t *__cdecl _ltow(long _Value,wchar_t *_Dest,int _Radix);
-  _CRTIMP wchar_t *__cdecl _ultow(unsigned long _Value,wchar_t *_Dest,int _Radix);
+  _CRTIMP wchar_t *__cdecl _itow(int _Value,wchar_t *_Dest,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP wchar_t *__cdecl _ltow(long _Value,wchar_t *_Dest,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP wchar_t *__cdecl _ultow(unsigned long _Value,wchar_t *_Dest,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   double __cdecl wcstod(const wchar_t *_Str,wchar_t **_EndPtr);
   float __cdecl wcstof(const wchar_t *nptr, wchar_t **endptr);
 #if !defined __NO_ISOCEXT /* in libmingwex.a */
@@ -438,7 +438,7 @@
   _CRTIMP long __cdecl _wcstol_l(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix,_locale_t _Locale);
   unsigned long __cdecl wcstoul(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix);
   _CRTIMP unsigned long __cdecl _wcstoul_l(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix,_locale_t _Locale);
-  _CRTIMP wchar_t *__cdecl _wgetenv(const wchar_t *_VarName);
+  _CRTIMP wchar_t *__cdecl _wgetenv(const wchar_t *_VarName) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
 #ifndef _CRT_WSYSTEM_DEFINED
 #define _CRT_WSYSTEM_DEFINED
   _CRTIMP int __cdecl _wsystem(const wchar_t *_Command);
@@ -450,8 +450,8 @@
   _CRTIMP long __cdecl _wtol(const wchar_t *_Str);
   _CRTIMP long __cdecl _wtol_l(const wchar_t *_Str,_locale_t _Locale);
 
-  __MINGW_EXTENSION _CRTIMP wchar_t *__cdecl _i64tow(__int64 _Val,wchar_t *_DstBuf,int _Radix);
-  __MINGW_EXTENSION _CRTIMP wchar_t *__cdecl _ui64tow(unsigned __int64 _Val,wchar_t *_DstBuf,int _Radix);
+  __MINGW_EXTENSION _CRTIMP wchar_t *__cdecl _i64tow(__int64 _Val,wchar_t *_DstBuf,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  __MINGW_EXTENSION _CRTIMP wchar_t *__cdecl _ui64tow(unsigned __int64 _Val,wchar_t *_DstBuf,int _Radix) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   __MINGW_EXTENSION _CRTIMP __int64 __cdecl _wtoi64(const wchar_t *_Str);
   __MINGW_EXTENSION _CRTIMP __int64 __cdecl _wtoi64_l(const wchar_t *_Str,_locale_t _Locale);
   __MINGW_EXTENSION _CRTIMP __int64 __cdecl _wcstoi64(const wchar_t *_Str,wchar_t **_EndPtr,int _Radix);
@@ -463,9 +463,9 @@
 #ifndef _POSIX_
 #define _CVTBUFSIZE (309+40)
   _CRTIMP char *__cdecl _fullpath(char *_FullPath,const char *_Path,size_t _SizeInBytes);
-  _CRTIMP char *__cdecl _ecvt(double _Val,int _NumOfDigits,int *_PtDec,int *_PtSign);
-  _CRTIMP char *__cdecl _fcvt(double _Val,int _NumOfDec,int *_PtDec,int *_PtSign);
-  _CRTIMP char *__cdecl _gcvt(double _Val,int _NumOfDigits,char *_DstBuf);
+  _CRTIMP char *__cdecl _ecvt(double _Val,int _NumOfDigits,int *_PtDec,int *_PtSign) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP char *__cdecl _fcvt(double _Val,int _NumOfDec,int *_PtDec,int *_PtSign) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP char *__cdecl _gcvt(double _Val,int _NumOfDigits,char *_DstBuf) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   _CRTIMP int __cdecl _atodbl(_CRT_DOUBLE *_Result,char *_Str);
   _CRTIMP int __cdecl _atoldbl(_LDOUBLE *_Result,char *_Str);
   _CRTIMP int __cdecl _atoflt(_CRT_FLOAT *_Result,char *_Str);
@@ -511,8 +511,8 @@
 #pragma pop_macro ("_rotl")
 #pragma pop_macro ("_rotr")
   __MINGW_EXTENSION unsigned __int64 __cdecl _rotr64(unsigned __int64 _Val,int _Shift);
-  _CRTIMP void __cdecl _searchenv(const char *_Filename,const char *_EnvVar,char *_ResultPath);
-  _CRTIMP void __cdecl _splitpath(const char *_FullPath,char *_Drive,char *_Dir,char *_Filename,char *_Ext);
+  _CRTIMP void __cdecl _searchenv(const char *_Filename,const char *_EnvVar,char *_ResultPath) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP void __cdecl _splitpath(const char *_FullPath,char *_Drive,char *_Dir,char *_Filename,char *_Ext) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   _CRTIMP void __cdecl _swab(char *_Buf1,char *_Buf2,int _SizeInBytes);
 
 #ifndef _WSTDLIBP_DEFINED
@@ -524,8 +524,8 @@
   _CRTIMP void __cdecl _wperror(const wchar_t *_ErrMsg);
 #endif
   _CRTIMP int __cdecl _wputenv(const wchar_t *_EnvString);
-  _CRTIMP void __cdecl _wsearchenv(const wchar_t *_Filename,const wchar_t *_EnvVar,wchar_t *_ResultPath);
-  _CRTIMP void __cdecl _wsplitpath(const wchar_t *_FullPath,wchar_t *_Drive,wchar_t *_Dir,wchar_t *_Filename,wchar_t *_Ext);
+  _CRTIMP void __cdecl _wsearchenv(const wchar_t *_Filename,const wchar_t *_EnvVar,wchar_t *_ResultPath) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
+  _CRTIMP void __cdecl _wsplitpath(const wchar_t *_FullPath,wchar_t *_Drive,wchar_t *_Dir,wchar_t *_Filename,wchar_t *_Ext) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
 #endif
 
   _CRTIMP void __cdecl _beep(unsigned _Frequency,unsigned _Duration) __MINGW_ATTRIB_DEPRECATED;