Merge topic 'findmpi_dont_variable_lang'

c9c2e040aa FindMPI: Don't check for variables named the same as the languages

Acked-by: Kitware Robot <[email protected]>
Merge-request: !7208

Modules/FindMPI.cmake

@@ -1452,21 +1452,21 @@ foreach(LANG IN ITEMS C CXX Fortran)
   if(CMAKE_${LANG}_COMPILER_LOADED)
     if(NOT MPI_FIND_COMPONENTS)
       set(_MPI_FIND_${LANG} TRUE)
-    elseif( ${LANG} IN_LIST MPI_FIND_COMPONENTS)
+    elseif( LANG IN_LIST MPI_FIND_COMPONENTS)
       set(_MPI_FIND_${LANG} TRUE)
-    elseif( ${LANG} STREQUAL CXX AND NOT MPI_CXX_SKIP_MPICXX AND MPICXX IN_LIST MPI_FIND_COMPONENTS )
+    elseif( "${LANG}" STREQUAL "CXX" AND NOT MPI_CXX_SKIP_MPICXX AND MPICXX IN_LIST MPI_FIND_COMPONENTS )
       set(_MPI_FIND_${LANG} TRUE)
     else()
       set(_MPI_FIND_${LANG} FALSE)
     endif()
   else()
     set(_MPI_FIND_${LANG} FALSE)
-    if(${LANG} IN_LIST MPI_FIND_COMPONENTS)
+    if(LANG IN_LIST MPI_FIND_COMPONENTS)
       string(APPEND _MPI_FAIL_REASON "MPI component '${LANG}' was requested, but language ${LANG} is not enabled.  ")
     endif()
   endif()
   if(_MPI_FIND_${LANG})
-    if( ${LANG} STREQUAL CXX AND NOT MPICXX IN_LIST MPI_FIND_COMPONENTS )
+    if( "${LANG}" STREQUAL "CXX" AND NOT MPICXX IN_LIST MPI_FIND_COMPONENTS )
       option(MPI_CXX_SKIP_MPICXX "If true, the MPI-2 C++ bindings are disabled using definitions." FALSE)
       mark_as_advanced(MPI_CXX_SKIP_MPICXX)
     endif()