Use find_package(MFC) in cmake.

Author: xhawk18

CMakeLists.txt

@@ -91,7 +91,7 @@ endif()
 
 find_package(QT NAMES Qt6 Qt5 COMPONENTS Widgets)
 find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Widgets)
-if(NOT QT_DIR)
+if(NOT QT_FOUND)
     message(WARNING "QT not found, so project qt_timer will not be compiled")
 else()
     if(PROMISE_BUILD_SHARED OR BUILD_SHARED_LIBS)
@@ -104,6 +104,9 @@ else()
     add_subdirectory(./example/qt_timer)
 endif()
 
-if(MSVC)
+find_package(MFC)
+if(NOT MFC_FOUND)
+    message(WARNING "MFC not found, so project mfc_timer will not be compiled")
+else()
     add_subdirectory(./example/mfc_timer)
 endif()