Save FreeCAD WebAssembly development state

cMake/FreeCAD_Helpers/SetupQt.cmake

@@ -1,10 +1,13 @@
 # -------------------------------- Qt --------------------------------
 
 set(FREECAD_QT_COMPONENTS Core Concurrent Network Xml)
-if(FREECAD_WEB)
+if(FREECAD_WEB AND NOT FREECAD_WEB_ENABLE_TECHDRAW_NATIVE)
     # QtConcurrent is only used by GUI code in the current Web module graph.
     set(FREECAD_QT_COMPONENTS Core Network Xml)
 endif()
+if(FREECAD_WEB AND FREECAD_WEB_ENABLE_TECHDRAW_NATIVE)
+    list(APPEND FREECAD_QT_COMPONENTS Gui Widgets)
+endif()
 if (FREECAD_QT_MAJOR_VERSION EQUAL 6)
     set (Qt6Core_MOC_EXECUTABLE Qt6::moc)
 endif()

cMake/FreeCAD_Helpers/SetupSalomeSMESH.cmake

@@ -92,7 +92,15 @@ macro(SetupSalomeSMESH)
         if(NOT FREECAD_USE_EXTERNAL_SMESH)
             find_package(MEDFile REQUIRED)
             # See https://www.hdfgroup.org/HDF5/release/cmakebuild.html
-            if (MSVC)
+            if (CMAKE_SYSTEM_NAME STREQUAL "Emscripten" AND HDF5_WASM_INCLUDE_DIRS AND HDF5_WASM_LIBRARIES)
+                # The host pkg-config database must not participate in the
+                # browser closure. MEDFile and SMESH consume the same
+                # Emscripten-built HDF5 archives used by VTK.
+                set(HDF5_INCLUDE_DIRS ${HDF5_WASM_INCLUDE_DIRS})
+                set(HDF5_LIBRARIES ${HDF5_WASM_LIBRARIES})
+                include_directories(${HDF5_WASM_INCLUDE_DIRS})
+                link_libraries(${HDF5_WASM_LIBRARIES})
+            elseif (MSVC)
                 find_package(HDF5 COMPONENTS NO_MODULE REQUIRED static)
             else()
                 find_package(PkgConfig)