workflows testing which linker command used

.github/workflows/linux-qt6.yml

@@ -671,6 +671,7 @@ jobs:
         -D CMAKE_EXPORT_PACKAGE_REGISTRY:BOOL=OFF
         -D CMAKE_BUILD_TYPE:STRING=Debug
         -D CMAKE_CXX_SCAN_FOR_MODULES:BOOL=OFF
+        -D CMAKE_VERBOSE_MAKEFILE:BOOL=ON
         -D VCPKG_APPLOCAL_DEPS:BOOL=OFF
         -D VERBOSE_CONFIGURE:BOOL=ON
         -D BUILD_TREE_DEPLOY:BOOL=OFF