+ Re-enable Mefisto for MSVC

src/Mod/MeshPart/Gui/CMakeLists.txt

@@ -4,6 +4,10 @@ else(MSVC)
     add_definitions(-DHAVE_LIMITS_H -DHAVE_CONFIG_H)
 endif(MSVC)
 
+if (FREECAD_BUILD_SMESH)
+    add_definitions(-DHAVE_SMESH -DHAVE_MEFISTO)
+endif(FREECAD_BUILD_SMESH)
+
 if(FREECAD_BUILD_FEM_NETGEN)
     add_definitions(-DHAVE_NETGEN)
 endif(FREECAD_BUILD_FEM_NETGEN)

src/Mod/MeshPart/Gui/Tessellation.cpp

@@ -65,7 +65,7 @@ Tessellation::Tessellation(QWidget* parent)
     ui->comboFineness->setCurrentIndex(2);
     on_comboFineness_currentIndexChanged(2);
 
-#if defined (_MSC_VER)
+#if !defined (HAVE_MEFISTO)
     ui->radioButtonMefisto->setDisabled(true);
 #else
     ui->radioButtonMefisto->setChecked(true);