Build fails on windows-x64 with VS2022 Community Edition

[MarkRivers]

I am building with VS2022 Community Edition. The current master branch builds OK with windows-x64-static. However, it fails with windows-x64 (dynamic build) as follows:

J:\epics\devel\areaDetector-3-14\ffmpegServer>make -sj
ffmpegCommon.cpp
ffmpegServer.cpp
ffmpegFile.cpp
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(1028): error C2065: 'PTRDIFF_MAX': undeclared identifier
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(1028): note: the template instantiation context (the oldest one first) is
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(1662): note: see reference to class template instantiation 'std::num_get<wchar_t,std::istreambuf_iterator<wchar_t,std::char_traits<wchar_t>>>' being compiled
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(589): note: while compiling class template member function '_InIt std::num_get<wchar_t,_InIt>::do_get(_InIt,_InIt,std::ios_base &,std::ios_base::iostate &,double &) const'
        with
        [
            _InIt=std::istreambuf_iterator<wchar_t,std::char_traits<wchar_t>>
        ]
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(623): note: see the first reference to 'std::num_get<wchar_t,std::istreambuf_iterator<wchar_t,std::char_traits<wchar_t>>>::do_get' in 'std::num_get<wchar_t,std::istreambuf_iterator<wchar_t,std::char_traits<wchar_t>>>::do_get'
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(594): note: see reference to function template instantiation 'std::_Num_get_parse_result std::num_get<wchar_t,std::istreambuf_iterator<wchar_t,std::char_traits<wchar_t>>>::_Parse_fp_with_locale<0>(char *const ,const int,_InIt &,_InIt &,const std::locale &)' being compiled
        with
        [
            _InIt=std::istreambuf_iterator<wchar_t,std::char_traits<wchar_t>>
        ]
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(1029): error C2065: 'PTRDIFF_MAX': undeclared identifier
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(1030): error C2065: 'PTRDIFF_MAX': undeclared identifier
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.42.34433\include\xlocnum(1033): error C2065: 'PTRDIFF_MAX': undeclared identifier
make[3]: *** [H:/epics-devel/base-7.0.8/configure/RULES_BUILD:267: ffmpegCommon.obj] Error 2

However, if I comment out this line in the Makefile it builds fine on both windows-x64-static and windows-x64:

diff --git a/ffmpegServerApp/src/Makefile b/ffmpegServerApp/src/Makefile
index b992352..56e2239 100644
--- a/ffmpegServerApp/src/Makefile
+++ b/ffmpegServerApp/src/Makefile
@@ -24,7 +24,7 @@ USR_CXXFLAGS += -U_GNU_SOURCE
 endif

 # For some reason the windows build needs stdint.h and inttypes.h
-USR_INCLUDES_WIN32 += -I$(TOP)/vendor/msinttypes
+#USR_INCLUDES_WIN32 += -I$(TOP)/vendor/msinttypes

 # And we need to switch nullhttpd to win32 mode
 USR_CXXFLAGS_WIN32 += -DWIN32

Does anyone know what versions of VS require those stdint.h and inttype.h files?