clang + ninja doesn't work

[matwey]

Hi, I am running clang 16 and cmake 3.26.3

> CC=clang CXX=clang++ cmake .. -G "Ninja"
-- The C compiler identification is Clang 16.0.1
-- The CXX compiler identification is Clang 16.0.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/clang - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/clang++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Warning (dev) at CMakeLists.txt:15 (target_sources):
  CMake's C++ module support is experimental.  It is meant only for
  experimentation and feedback to CMake developers.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring done (3.4s)
CMake Warning (dev):
  C++20 modules support via CMAKE_EXPERIMENTAL_CXX_MODULE_DYNDEP is
  experimental.  It is meant only for compiler developers to try.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Generating done (0.0s)
-- Build files have been written to: /home/matwey/lab/CMake_Modules/build

> cmake --build .
[5/6] Building CXX object CMakeFiles/demo.dir/main.cpp.o
FAILED: CMakeFiles/demo.dir/main.cpp.o
/usr/bin/clang++   -std=gnu++20 -MD -MT CMakeFiles/demo.dir/main.cpp.o -MF CMakeFiles/demo.dir/main.cpp.o.d @CMakeFiles/demo.dir/main.cpp.o.modmap -o CMakeFiles/demo.dir/main.cpp.o -c /home/matwey/lab/CMake_Modules/main.cpp
/home/matwey/lab/CMake_Modules/main.cpp:1:8: fatal error: module 'MyModule' not found
import MyModule;
~~~~~~~^~~~~~~~
1 error generated.
ninja: build stopped: subcommand failed.

[banderzhm]

ubuntu 2022.04 | gcc 12 | cmake 3.26 |ninja 1.11| clang 17
I have the same problem. Cannot be allowed，Only MVSC available.