C++20 Modules std.ixx STL Static/Global Scope References - c++

Question

Following instructions by Microsoft, I couldn't get the std module to build and not have a versioning error, so I went ahead and just added the file:
C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.35.32213\modules\std.ixx
to my project and I import it into my module interface files. My only issue is I can't access ::localtime_s because it is one of the static-inline/global functions not in the std namespace. Including <time.h> in the global module space creates issues with macro redefinitions. Is there something I am missing?
export module MyModule;
import std;
export namespace nspace1 {
void TimeFunction();
}
namespace nspace1 {
void TimeFunction()
{
std::time_t t = std::time(nullptr);
std::tm* now{};
void* result = ::localtime_s(now, &t); <== dne
}
}
The intellisense error is it is not found in the global space which makes sense for localtime_s because it is static, but _localtime64_s is just global and it says the same thing. Dropping the double colons just changes the error message to cannot be found.

Answer 1

The following code builds ok on my machine.
(Version 17.5.0 Preview 3.0)
import std; is a C++23 feature. I hope vendor support is getting better.
module;
#include <time.h>
export module MyModule;
import std;
export namespace nspace1 {
void TimeFunction();
}
namespace nspace1 {
void TimeFunction()
{
std::time_t t = std::time(nullptr);
std::tm* now{};
auto result = ::localtime_s(now, &t);
//auto result = localtime_s(now, &t); // ok, too
}
}