diff --color -Naur a/modules/FindTQt.cmake b/modules/FindTQt.cmake
--- a/modules/FindTQt.cmake	2024-10-15 00:00:02.000000000 +0800
+++ b/modules/FindTQt.cmake	2025-04-08 17:22:51.031340107 +0800
@@ -88,7 +88,7 @@
   list( APPEND CMAKE_REQUIRED_LIBRARIES ${TQT_LIBRARIES} )
 
   check_cxx_source_compiles("
-    #include <tqapplication.h>
+    #include <ntqapplication.h>
     int main(int argc, char **argv) { TQApplication app(argc, argv); return 0; } "
     HAVE_USABLE_TQT )