Intel LLVM mpi wrapper: do not check for exit code

Author: perazz

src/metapackage/fpm_meta_mpi.f90

@@ -1112,15 +1112,17 @@ type(string_t) function mpi_wrapper_query(mpilib,wrapper,command,verbose,error)
                                               exitcode=stat,cmd_success=success,screen_output=screen)
                      endif
 
-                     if (stat/=0 .or. .not.success) then
+                     ! LLVM wrappers bug: non-zero exit code when checking for "-v" -> only check for 
+                     ! successful command: https://github.com/spack/spack/issues/47672
+                     if (success) then
                         call syntax_error(error, &
                             'cannot retrieve MPICH library version from <mpichversion, '//wrapper%s//', mpiexec>')
                         return
                      end if
 
                   case (MPI_TYPE_INTEL)
 
-                     ! --showme:command returns the build command of this wrapper
+                     ! -v returns the build command of this wrapper
                      call run_wrapper(wrapper,[string_t('-v')],verbose=verbose, &
                                           exitcode=stat,cmd_success=success,screen_output=screen)