Fail to find std::isnan though provided

[Destranix]

Describe the bug

When compiling all cmake-Tests for isnan fail. Later then compiling fails with missing "std::_isnan" (no idea, why there is an underscore). Though "std::isnan" should exist on my plattform in cmath, there defined as:
using _CSTD isnan;

Following error message:
error: namespace "std" has no member "_isnan"

Compilers & Libraries (please complete the following information):
Following cmake configuration output:
configuration.txt

Start of CMakeError.log looks like this:

Determining if the function std::isnan exists failed with the following output:
Change Dir: D:/Destranix/Documents/00Uni/Simulation/SAMARAI-Builds/objs/CMakeFiles/CMakeTmp

Run Build Command(s):C:/Program Files (x86)/Microsoft Visual Studio/2022/BuildTools/Common7/IDE/CommonExtensions/Microsoft/CMake/Ninja/ninja.exe cmTC_32829 && [1/2] Building C object CMakeFiles\cmTC_32829.dir\CheckFunctionExists.c.obj

FAILED: CMakeFiles/cmTC_32829.dir/CheckFunctionExists.c.obj 

C:\PROGRA~2\MICROS~2\2022\BUILDT~1\VC\Tools\MSVC\1431~1.311\\bin\Hostx64\x64\cl.exe  /nologo   /DWIN32 /D_WINDOWS /W3  /bigobj  /W4  -DCHECK_FUNCTION_EXISTS=std::isnan /MD /O2 /Ob2 /DNDEBUG /showIncludes /FoCMakeFiles\cmTC_32829.dir\CheckFunctionExists.c.obj /FdCMakeFiles\cmTC_32829.dir\ /FS -c "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\share\cmake-3.22\Modules\CheckFunctionExists.c"

cl : Command line warning D9025 : overriding '/W3' with '/W4'
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\share\cmake-3.22\Modules\CheckFunctionExists.c(7): error C2143: syntax error: missing '{' before ':'
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\share\cmake-3.22\Modules\CheckFunctionExists.c(7): error C2059: syntax error: ':'
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\share\cmake-3.22\Modules\CheckFunctionExists.c(17): error C2143: syntax error: missing ';' before ':'
ninja: build stopped: subcommand failed.

So maybe this is just an error in cmake (I'll try to update the next days if this is not a known bug. The test for std::isnan though suggests, that there might be known problems related).

Additional context

I had a couple of issues building dependencies, maybe that's conncted or maybe that's just due to me using a compiler nobody else tested?