Bug report - CMake 3.18 findMPI can't find MS-MPI

Development
1

Hi folks,

I’m not sure if this is the right place to submit a bug report (if not, please tell me where it is).

The CMake 3.18 findMPI on Windows 10 can’t find MS-MPI for Fortran. After some investigations, I found that this patch fixed the problem:

FindMPI.cmake	Thu Aug 20 08:20:32 2020
FindMPI.cmake-p1	Wed Sep 30 11:10:26 2020
***************
*** 1091,1096 ****
--- 1091,1101 ----
    if(MPI_${LANG}_INCLUDE_DIRS)
      list(REMOVE_DUPLICATES MPI_${LANG}_INCLUDE_DIRS)
    endif()
+     if(MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
+       foreach(MPI_ADDITIONAL_INC_DIR IN LISTS MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
+         list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${MPI_ADDITIONAL_INC_DIR}_INCLUDE_DIR}")
+       endforeach()
+     endif()
  endmacro()
  
  macro(_MPI_split_include_dirs LANG)

regards,
Tetsuya Mishima

2

Thanks. We do have a dedicated issue tracker here, but it’s always fine to ask about problems here on the discourse forum first. In this case, please go ahead and open an issue titled “FindMPI: Cannot find MS-MPI for Fortran”.

3

I see CMake Issue 21257, thanks.