crt: Deinline UCRT _scwprintf() and _vscwprintf() functions and define import symbols for them This allows to reference _scwprintf() and _vscwprintf() functions for UCRT build via their symbols, like for msvcrt builds. Signed-off-by: Martin Storsjö <martin@martin.st>

diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am
index a24221d..e0924b4 100644
--- a/mingw-w64-crt/Makefile.am
+++ b/mingw-w64-crt/Makefile.am

@@ -414,11 +414,13 @@
   stdio/ucrt___local_stdio_printf_options.c \
   stdio/ucrt___local_stdio_scanf_options.c \
   stdio/ucrt__scprintf.c \
+  stdio/ucrt__scwprintf.c \
   stdio/ucrt__snprintf.c \
   stdio/ucrt__snscanf.c \
   stdio/ucrt__snwprintf.c \
   stdio/ucrt__swprintf.c \
   stdio/ucrt__vscprintf.c \
+  stdio/ucrt__vscwprintf.c \
   stdio/ucrt__vsnprintf.c \
   stdio/ucrt__vsnwprintf.c \
   stdio/ucrt__vswprintf.c \

diff --git a/mingw-w64-crt/stdio/ucrt__scwprintf.c b/mingw-w64-crt/stdio/ucrt__scwprintf.c
new file mode 100644
index 0000000..bc766de
--- /dev/null
+++ b/mingw-w64-crt/stdio/ucrt__scwprintf.c

@@ -0,0 +1,21 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER.PD within this package.
+ */
+
+#undef __MSVCRT_VERSION__
+#define _UCRT
+#include <stdio.h>
+#include <stdarg.h>
+
+int __cdecl _scwprintf(const wchar_t * restrict format, ...)
+{
+  int ret;
+  va_list args;
+  va_start(args, format);
+  ret = __stdio_common_vswprintf(_CRT_INTERNAL_LOCAL_PRINTF_OPTIONS | _CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, NULL, 0, format, NULL, args);
+  va_end(args);
+  return ret;
+}
+int __cdecl (*__MINGW_IMP_SYMBOL(_scwprintf))(const wchar_t * restrict, ...) = _scwprintf;

diff --git a/mingw-w64-crt/stdio/ucrt__vscwprintf.c b/mingw-w64-crt/stdio/ucrt__vscwprintf.c
new file mode 100644
index 0000000..5cb7d7d
--- /dev/null
+++ b/mingw-w64-crt/stdio/ucrt__vscwprintf.c

@@ -0,0 +1,15 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER.PD within this package.
+ */
+
+#undef __MSVCRT_VERSION__
+#define _UCRT
+#include <stdio.h>
+
+int __cdecl _vscwprintf(const wchar_t * restrict format, va_list args)
+{
+  return __stdio_common_vswprintf(_CRT_INTERNAL_LOCAL_PRINTF_OPTIONS | _CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, NULL, 0, format, NULL, args);
+}
+int __cdecl (*__MINGW_IMP_SYMBOL(_vscwprintf))(const wchar_t * restrict, va_list) = _vscwprintf;

diff --git a/mingw-w64-headers/crt/stdio.h b/mingw-w64-headers/crt/stdio.h
index 14e14e5..52a5441 100644
--- a/mingw-w64-headers/crt/stdio.h
+++ b/mingw-w64-headers/crt/stdio.h

@@ -1165,16 +1165,7 @@
   _CRTIMP int __cdecl _putws(const wchar_t *_Str);
 
 #ifdef _UCRT
-  __mingw_ovr
-  int __cdecl _scwprintf(const wchar_t * __restrict__ _Format,...)
-  {
-    __builtin_va_list __ap;
-    int __ret;
-    __builtin_va_start(__ap, _Format);
-    __ret = __stdio_common_vswprintf(_CRT_INTERNAL_LOCAL_PRINTF_OPTIONS | _CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, NULL, 0, _Format, NULL, __ap);
-    __builtin_va_end(__ap);
-    return __ret;
-  }
+  _CRTIMP int __cdecl _scwprintf(const wchar_t * __restrict__ _Format,...);
   int __cdecl _snwprintf(wchar_t * __restrict__ _Dest,size_t _Count,const wchar_t * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   int __cdecl _vsnwprintf(wchar_t * __restrict__ _Dest,size_t _Count,const wchar_t * __restrict__ _Format,va_list _Args) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
 
@@ -1189,12 +1180,7 @@
   _CRTIMP int __cdecl _swprintf(wchar_t * __restrict__ _Dest,const wchar_t * __restrict__ _Format,...);
   _CRTIMP int __cdecl _vswprintf(wchar_t * __restrict__ _Dest,const wchar_t * __restrict__ _Format,va_list _Args);
 
-  __mingw_ovr
-  int __cdecl _vscwprintf(const wchar_t * __restrict__ _Format, va_list _ArgList)
-  {
-      int _Result = __stdio_common_vswprintf(_CRT_INTERNAL_LOCAL_PRINTF_OPTIONS | _CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, NULL, 0, _Format, NULL, _ArgList);
-      return _Result < 0 ? -1 : _Result;
-  }
+  _CRTIMP int __cdecl _vscwprintf(const wchar_t * __restrict__ _Format,va_list _ArgList);
 #else
   _CRTIMP int __cdecl _scwprintf(const wchar_t * __restrict__ _Format,...);
   _CRTIMP int __cdecl _swprintf_c(wchar_t * __restrict__ _DstBuf,size_t _SizeInWords,const wchar_t * __restrict__ _Format,...);

diff --git a/mingw-w64-headers/crt/wchar.h b/mingw-w64-headers/crt/wchar.h
index 809d497..54df97a 100644
--- a/mingw-w64-headers/crt/wchar.h
+++ b/mingw-w64-headers/crt/wchar.h

@@ -535,16 +535,7 @@
   _CRTIMP int __cdecl _putws(const wchar_t *_Str);
 
 #ifdef _UCRT
-  __mingw_ovr
-  int __cdecl _scwprintf(const wchar_t * __restrict__ _Format,...)
-  {
-    __builtin_va_list __ap;
-    int __ret;
-    __builtin_va_start(__ap, _Format);
-    __ret = __stdio_common_vswprintf(_CRT_INTERNAL_LOCAL_PRINTF_OPTIONS | _CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, NULL, 0, _Format, NULL, __ap);
-    __builtin_va_end(__ap);
-    return __ret;
-  }
+  _CRTIMP int __cdecl _scwprintf(const wchar_t * __restrict__ _Format,...);
   int __cdecl _snwprintf(wchar_t * __restrict__ _Dest,size_t _Count,const wchar_t * __restrict__ _Format,...) __MINGW_ATTRIB_DEPRECATED_SEC_WARN;
   __mingw_ovr __MINGW_ATTRIB_DEPRECATED_SEC_WARN
   int __cdecl _vsnwprintf(wchar_t * __restrict__ _Dest,size_t _Count,const wchar_t * __restrict__ _Format,va_list _Args)
@@ -802,10 +793,9 @@
   {
     return __stdio_common_vswprintf(_CRT_INTERNAL_LOCAL_PRINTF_OPTIONS | _CRT_INTERNAL_PRINTF_STANDARD_SNPRINTF_BEHAVIOR, NULL, 0, _Format, _Locale, _ArgList);
   }
-  __mingw_ovr int __cdecl _vscwprintf(const wchar_t *_Format, va_list _ArgList)
-  {
-    return _vscwprintf_l(_Format, NULL, _ArgList);
-  }
+
+  _CRTIMP int __cdecl _vscwprintf(const wchar_t * __restrict__ _Format,va_list _ArgList);
+
   __mingw_ovr int __cdecl _scwprintf_l(const wchar_t *_Format, _locale_t _Locale, ...)
   {
     __builtin_va_list _ArgList;