[A/U/MeshEdit] Disable build of non-MPI tools in MPI config.

Applications/Utils/MeshEdit/CMakeLists.txt

-set(TOOLS
-    AddElementQuality
-    AddFaultToVoxelGrid
-    AddLayer
-    appendLinesAlongPolyline
-    checkMesh
-    convertToLinearMesh
-    CreateBoundaryConditionsAlongPolylines
-    createLayeredMeshFromRasters
-    createQuadraticMesh
-    editMaterialID
-    ExtractBoundary
-    ExtractMaterials
-    ExtractSurface
-    Layers2Grid
-    MapGeometryToMeshSurface
-    MoveMesh
-    moveMeshNodes
-    NodeReordering
-    queryMesh
-    removeMeshElements
-    ResetPropertiesInPolygonalRegion
-    reviseMesh
-    swapNodeCoordinateAxes
-    Vtu2Grid
-)
+if(NOT OGS_USE_MPI)
+    set(TOOLS
+        AddElementQuality
+        AddFaultToVoxelGrid
+        AddLayer
+        appendLinesAlongPolyline
+        checkMesh
+        convertToLinearMesh
+        CreateBoundaryConditionsAlongPolylines
+        createLayeredMeshFromRasters
+        createQuadraticMesh
+        editMaterialID
+        ExtractBoundary
+        ExtractMaterials
+        ExtractSurface
+        Layers2Grid
+        MapGeometryToMeshSurface
+        MoveMesh
+        moveMeshNodes
+        NodeReordering
+        queryMesh
+        removeMeshElements
+        ResetPropertiesInPolygonalRegion
+        reviseMesh
+        swapNodeCoordinateAxes
+        Vtu2Grid
+    )
+
+    if(OGS_BUILD_GUI)
+        ogs_add_executable(
+            RemoveGhostData RemoveGhostData.cpp
+            ${PROJECT_SOURCE_DIR}/ThirdParty/paraview/vtkCleanUnstructuredGrid.cpp
+        )
+        target_include_directories(
+            RemoveGhostData PRIVATE ${PROJECT_SOURCE_DIR}/ThirdParty/paraview
+        )
+        target_link_libraries(RemoveGhostData GitInfoLib MeshLib tclap)
+        install(TARGETS RemoveGhostData RUNTIME DESTINATION bin)
+    endif()
+
+    foreach(tool ${TOOLS})
+        ogs_add_executable(${tool} ${tool}.cpp)
+        target_link_libraries(${tool} GitInfoLib MeshLib tclap)
+    endforeach()
+    install(TARGETS ${TOOLS} RUNTIME DESTINATION bin)
 
-if(OGS_BUILD_GUI)
-    ogs_add_executable(
-        RemoveGhostData RemoveGhostData.cpp
-        ${PROJECT_SOURCE_DIR}/ThirdParty/paraview/vtkCleanUnstructuredGrid.cpp
+    target_link_libraries(
+        appendLinesAlongPolyline MeshGeoToolsLib ApplicationsFileIO
     )
-    target_include_directories(
-        RemoveGhostData PRIVATE ${PROJECT_SOURCE_DIR}/ThirdParty/paraview
+    target_link_libraries(
+        CreateBoundaryConditionsAlongPolylines MeshGeoToolsLib ApplicationsFileIO
     )
-    target_link_libraries(RemoveGhostData GitInfoLib MeshLib tclap)
-    install(TARGETS RemoveGhostData RUNTIME DESTINATION bin)
+    target_link_libraries(createLayeredMeshFromRasters ApplicationsFileIO)
+    target_link_libraries(MapGeometryToMeshSurface MeshGeoToolsLib)
+    target_link_libraries(ResetPropertiesInPolygonalRegion ApplicationsFileIO)
 endif()
-
-foreach(tool ${TOOLS})
-    ogs_add_executable(${tool} ${tool}.cpp)
-    target_link_libraries(${tool} GitInfoLib MeshLib tclap)
-endforeach()
-install(TARGETS ${TOOLS} RUNTIME DESTINATION bin)
-
-target_link_libraries(
-    appendLinesAlongPolyline MeshGeoToolsLib ApplicationsFileIO
-)
-target_link_libraries(
-    CreateBoundaryConditionsAlongPolylines MeshGeoToolsLib ApplicationsFileIO
-)
-target_link_libraries(createLayeredMeshFromRasters ApplicationsFileIO)
-target_link_libraries(MapGeometryToMeshSurface MeshGeoToolsLib)
-target_link_libraries(ResetPropertiesInPolygonalRegion ApplicationsFileIO)