diff --git a/.ci/run_tests.sh b/.ci/run_tests.sh
index 9db2792f763..d3a05c29f36 100755
--- a/.ci/run_tests.sh
+++ b/.ci/run_tests.sh
@@ -91,7 +91,7 @@ else
     --env-file .docker/docker-variables.env \
     --env PUSH_TO_CDASH=false \
     --env WITH_QT5=true \
-    --env WITH_QT6=false \
+    --env BUILD_WITH_QT6=false \
     --env WITH_QUICK=false \
     --env WITH_3D=false \
     --env PATCH_QT_3D=false \
diff --git a/.docker/docker-qgis-build.sh b/.docker/docker-qgis-build.sh
index 5abde2f5836..9488cdd248d 100755
--- a/.docker/docker-qgis-build.sh
+++ b/.docker/docker-qgis-build.sh
@@ -52,7 +52,7 @@ if [[ "${WITH_CLAZY}" = "ON" ]]; then
   export CLAZY_IGNORE_DIRS="(.*/external/.*)|(.*sip_.*part.*)"
 fi
 
-if [[ ${WITH_QT6} = "ON" ]]; then
+if [[ ${BUILD_WITH_QT6} = "ON" ]]; then
   CLANG_WARNINGS="-Wrange-loop-construct"
 fi
 
@@ -76,7 +76,7 @@ cmake \
  -GNinja \
  -DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
  -DUSE_CCACHE=OFF \
- -DWITH_QT6=${WITH_QT6} \
+ -DBUILD_WITH_QT6=${BUILD_WITH_QT6} \
  -DWITH_DESKTOP=${WITH_QT5} \
  -DWITH_ANALYSIS=ON \
  -DWITH_GUI=${WITH_QT5} \
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 1be1f584f12..649a285e564 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -174,7 +174,7 @@ jobs:
                      --env-file .docker/docker-variables.env \
                      --env PUSH_TO_CDASH=true \
                      --env WITH_QT5=${{ matrix.with-qt5 }} \
-                     --env WITH_QT6=${{ matrix.with-qt6 }} \
+                     --env BUILD_WITH_QT6=${{ matrix.with-qt6 }} \
                      --env WITH_QUICK=${{ matrix.with-quick }} \
                      --env WITH_3D=${{ matrix.with-3d }} \
                      --env PATCH_QT_3D=${{ matrix.patch-qt-3d }} \
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ad6e082749..a032de5f2ea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -441,8 +441,8 @@ if(WITH_CORE)
   #############################################################
   # search for Qt
 
-  set (WITH_QT6 FALSE CACHE BOOL "Enable (broken, experimental) Qt6 support")
-  if (WITH_QT6)
+  set (BUILD_WITH_QT6 FALSE CACHE BOOL "Enable (broken, experimental) Qt6 support")
+  if (BUILD_WITH_QT6)
     set(QT_MIN_VERSION 6.0.0)
     set(QT_VERSION_BASE "Qt6")
   else()
@@ -462,7 +462,7 @@ if(WITH_CORE)
   endif()
 
   find_package(${QT_VERSION_BASE} COMPONENTS Core Gui Widgets Network Xml Svg Concurrent Test UiTools Sql REQUIRED)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     find_package(${QT_VERSION_BASE} COMPONENTS Core5Compat REQUIRED)
   else()
     # TODO only available starting from Qt 6.2
@@ -473,7 +473,7 @@ if(WITH_CORE)
   else()
     add_definitions(-DQT_NO_PRINTER)
   endif()
-  if (WITH_QTWEBKIT AND NOT WITH_QT6)
+  if (WITH_QTWEBKIT AND NOT BUILD_WITH_QT6)
     find_package(Qt5WebKit REQUIRED)
     find_package(Qt5WebKitWidgets REQUIRED)
   endif()
@@ -491,7 +491,7 @@ if(WITH_CORE)
   EXEC_PROGRAM(${QMAKE_EXECUTABLE} ARGS "-query QT_INSTALL_PLUGINS" RETURN_VALUE return_code OUTPUT_VARIABLE DEFAULT_QT_PLUGINS_DIR )
   set (QT_PLUGINS_DIR ${DEFAULT_QT_PLUGINS_DIR} CACHE STRING "Path to installation directory for Qt Plugins. Defaults to Qt native plugin directory")
 
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     message(STATUS "Found Qt version: ${Qt6Core_VERSION}")
   else()
     message(STATUS "Found Qt version: ${Qt5Core_VERSION_STRING}")
@@ -975,7 +975,7 @@ message("-- Found Python executable: ${Python_EXECUTABLE} (version ${Python_VERS
 message("-- Python library: ${Python_LIBRARIES}")
 message("-- Python site-packages: ${Python_SITEARCH}")
 
-if (WITH_CORE AND WITH_BINDINGS AND NOT WITH_QT6)
+if (WITH_CORE AND WITH_BINDINGS AND NOT BUILD_WITH_QT6)
   set(PYTHON_OUTPUT_DIRECTORY ${QGIS_OUTPUT_DIRECTORY}/python)
   set (QGIS_PYTHON_OUTPUT_DIRECTORY ${PYTHON_OUTPUT_DIRECTORY}/qgis)
 
diff --git a/src/3d/CMakeLists.txt b/src/3d/CMakeLists.txt
index 35913b5cd14..e41afc78e89 100644
--- a/src/3d/CMakeLists.txt
+++ b/src/3d/CMakeLists.txt
@@ -203,7 +203,7 @@ add_library(qgis_3d SHARED ${QGIS_3D_SRCS} ${QGIS_3D_HDRS} ${QGIS_3D_RCCS} ${QGI
 # require c++17
 target_compile_features(qgis_3d PRIVATE cxx_std_17)
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   target_include_directories(qgis_3d SYSTEM PUBLIC
     ${QT6_3DEXTRA_INCLUDE_DIR}
   )
@@ -228,7 +228,7 @@ target_include_directories(qgis_3d PUBLIC
   ${CMAKE_SOURCE_DIR}/external/delaunator-cpp
 )
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   target_link_libraries(qgis_3d Qt6::3DCore Qt6::3DRender Qt6::3DInput Qt6::3DLogic Qt6::3DExtras)
 else()
   target_link_libraries(qgis_3d Qt5::3DCore Qt5::3DRender Qt5::3DInput Qt5::3DLogic Qt5::3DExtras)
diff --git a/src/auth/apiheader/CMakeLists.txt b/src/auth/apiheader/CMakeLists.txt
index 981aaf50770..35bb52c345e 100644
--- a/src/auth/apiheader/CMakeLists.txt
+++ b/src/auth/apiheader/CMakeLists.txt
@@ -16,7 +16,7 @@ if (WITH_GUI)
     gui/qgsauthapiheaderedit.h
   )
   set(AUTH_APIHEADER_UIS gui/qgsauthapiheaderedit.ui)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AUTH_APIHEADER_UIS_H ${AUTH_APIHEADER_UIS})
   else()
     QT5_WRAP_UI(AUTH_APIHEADER_UIS_H ${AUTH_APIHEADER_UIS})
diff --git a/src/auth/basic/CMakeLists.txt b/src/auth/basic/CMakeLists.txt
index f70dfd8c5a5..6b4f59ed248 100644
--- a/src/auth/basic/CMakeLists.txt
+++ b/src/auth/basic/CMakeLists.txt
@@ -16,7 +16,7 @@ if (WITH_GUI)
     gui/qgsauthbasicedit.h
   )
   set(AUTH_BASIC_UIS gui/qgsauthbasicedit.ui)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AUTH_BASIC_UIS_H ${AUTH_BASIC_UIS})
   else()
     QT5_WRAP_UI(AUTH_BASIC_UIS_H ${AUTH_BASIC_UIS})
diff --git a/src/auth/esritoken/CMakeLists.txt b/src/auth/esritoken/CMakeLists.txt
index f21dbad9822..5bc3f1fb681 100644
--- a/src/auth/esritoken/CMakeLists.txt
+++ b/src/auth/esritoken/CMakeLists.txt
@@ -16,7 +16,7 @@ if (WITH_GUI)
     gui/qgsauthesritokenedit.h
   )
   set(AUTH_ESRITOKEN_UIS gui/qgsauthesritokenedit.ui)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AUTH_ESRITOKEN_UIS_H ${AUTH_ESRITOKEN_UIS})
   else()
     QT5_WRAP_UI(AUTH_ESRITOKEN_UIS_H ${AUTH_ESRITOKEN_UIS})
diff --git a/src/auth/identcert/CMakeLists.txt b/src/auth/identcert/CMakeLists.txt
index 99ab05db604..f6dda60f06c 100644
--- a/src/auth/identcert/CMakeLists.txt
+++ b/src/auth/identcert/CMakeLists.txt
@@ -16,7 +16,7 @@ if (WITH_GUI)
     gui/qgsauthidentcertedit.h
   )
   set(AUTH_IDENTCERT_UIS gui/qgsauthidentcertedit.ui)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AUTH_IDENTCERT_UIS_H ${AUTH_IDENTCERT_UIS})
   else()
     QT5_WRAP_UI(AUTH_IDENTCERT_UIS_H ${AUTH_IDENTCERT_UIS})
diff --git a/src/auth/maptiler_hmacsha256/CMakeLists.txt b/src/auth/maptiler_hmacsha256/CMakeLists.txt
index 30c191a2fae..5e7b988f82b 100644
--- a/src/auth/maptiler_hmacsha256/CMakeLists.txt
+++ b/src/auth/maptiler_hmacsha256/CMakeLists.txt
@@ -16,7 +16,7 @@ if (WITH_GUI)
     gui/qgsauthmaptilerhmacsha256edit.h
   )
   set(AUTH_MAPTILER_HMACSHA256_UIS gui/qgsauthmaptilerhmacsha256edit.ui)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AUTH_MAPTILER_HMACSHA256_UIS_H ${AUTH_MAPTILER_HMACSHA256_UIS})
   else()
     QT5_WRAP_UI(AUTH_MAPTILER_HMACSHA256_UIS_H ${AUTH_MAPTILER_HMACSHA256_UIS})
diff --git a/src/auth/pkipaths/CMakeLists.txt b/src/auth/pkipaths/CMakeLists.txt
index fa1cdbc743f..8878344dc59 100644
--- a/src/auth/pkipaths/CMakeLists.txt
+++ b/src/auth/pkipaths/CMakeLists.txt
@@ -16,7 +16,7 @@ if (WITH_GUI)
     gui/qgsauthpkipathsedit.h
   )
   set(AUTH_PKIPATHS_UIS gui/qgsauthpkipathsedit.ui)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AUTH_PKIPATHS_UIS_H ${AUTH_PKIPATHS_UIS})
   else()
     QT5_WRAP_UI(AUTH_PKIPATHS_UIS_H ${AUTH_PKIPATHS_UIS})
diff --git a/src/auth/pkipkcs12/CMakeLists.txt b/src/auth/pkipkcs12/CMakeLists.txt
index dd4a4ac60ba..3e0b8e9e6ce 100644
--- a/src/auth/pkipkcs12/CMakeLists.txt
+++ b/src/auth/pkipkcs12/CMakeLists.txt
@@ -16,7 +16,7 @@ if (WITH_GUI)
     gui/qgsauthpkcs12edit.h
   )
   set(AUTH_PKCS12_UIS gui/qgsauthpkcs12edit.ui)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AUTH_PKCS12_UIS_H ${AUTH_PKCS12_UIS})
   else()
     QT5_WRAP_UI(AUTH_PKCS12_UIS_H ${AUTH_PKCS12_UIS})
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 728eed76c6e..474b3059b10 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -2295,7 +2295,7 @@ if (WITH_SPATIALITE)
   target_link_libraries(qgis_core ${SPATIALITE_LIBRARY})
 endif()
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   target_link_libraries(qgis_core Qt6::Core5Compat)
 endif()
 
diff --git a/src/crashhandler/CMakeLists.txt b/src/crashhandler/CMakeLists.txt
index 54ea4a67aee..0c988f64c18 100644
--- a/src/crashhandler/CMakeLists.txt
+++ b/src/crashhandler/CMakeLists.txt
@@ -2,7 +2,7 @@ include_directories(SYSTEM
   ${CMAKE_CURRENT_BINARY_DIR}
 )
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_UI(CRASH_UIS_H qgscrashdialog.ui)
   QT6_WRAP_CPP(CRASH_HDR_MOC qgscrashdialog.h)
 else()
diff --git a/src/customwidgets/CMakeLists.txt b/src/customwidgets/CMakeLists.txt
index 2e817652443..8cb71a921cd 100644
--- a/src/customwidgets/CMakeLists.txt
+++ b/src/customwidgets/CMakeLists.txt
@@ -98,7 +98,7 @@ include_directories(SYSTEM
   ${${QT_VERSION_BASE}Designer_INCLUDE_DIRS}
 )
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_CPP(QGIS_CUSTOMWIDGETS_MOC_SRCS ${QGIS_CUSTOMWIDGETS_MOC_HDRS})
 else()
   QT5_WRAP_CPP(QGIS_CUSTOMWIDGETS_MOC_SRCS ${QGIS_CUSTOMWIDGETS_MOC_HDRS})
diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 738fb297741..28a4fdb15ce 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -1354,7 +1354,7 @@ set(QGIS_GUI_PRIVATE_HDRS
   attributetable/qgsfeaturefilterwidget_p.h
 )
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   find_package(Qt6 COMPONENTS Qml QuickWidgets REQUIRED)
 else()
   find_package(Qt5 COMPONENTS Qml QuickWidgets REQUIRED)
@@ -1505,7 +1505,7 @@ target_include_directories(qgis_gui SYSTEM PRIVATE
   ${QT_QTUITOOLS_INCLUDE_DIR}
 )
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   target_include_directories(qgis_gui SYSTEM PRIVATE
     ${${QT_VERSION_BASE}Svg_INCLUDE_DIRS}
   )
@@ -1624,7 +1624,7 @@ target_link_libraries(qgis_gui
   ${QT_VERSION_BASE}::QuickWidgets
 )
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   find_package(Qt6 COMPONENTS SvgWidgets REQUIRED)
   target_link_libraries(qgis_gui
     Qt6::SvgWidgets
diff --git a/src/native/CMakeLists.txt b/src/native/CMakeLists.txt
index bc678871141..7cb854a125c 100644
--- a/src/native/CMakeLists.txt
+++ b/src/native/CMakeLists.txt
@@ -134,7 +134,7 @@ if(NOT ANDROID)
   )
 endif()
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   target_link_libraries(qgis_native ${Qt6Core_LIBRARIES} ${Qt6Gui_LIBRARIES} "${NATIVE_LINK_LIBS}")
 else()
   target_link_libraries(qgis_native ${Qt5Core_LIBRARIES} ${Qt5Gui_LIBRARIES} "${NATIVE_LINK_LIBS}")
diff --git a/src/plugins/geometry_checker/CMakeLists.txt b/src/plugins/geometry_checker/CMakeLists.txt
index 9b30a2b07c3..c6981dc4dec 100644
--- a/src/plugins/geometry_checker/CMakeLists.txt
+++ b/src/plugins/geometry_checker/CMakeLists.txt
@@ -30,7 +30,7 @@ set (geometrychecker_RCCS
 ########################################################
 # Build
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_UI (geometrychecker_UIS_H  ${geometrychecker_UIS})
 else()
   QT5_WRAP_UI (geometrychecker_UIS_H  ${geometrychecker_UIS})
diff --git a/src/plugins/grass/CMakeLists.txt b/src/plugins/grass/CMakeLists.txt
index e80e4f0fa60..14f0613a73c 100644
--- a/src/plugins/grass/CMakeLists.txt
+++ b/src/plugins/grass/CMakeLists.txt
@@ -170,7 +170,7 @@ macro(ADD_GRASSPLUGIN GRASS_BUILD_VERSION)
     set(GRASS_MAJOR_VERSION ${GRASS_MAJOR_VERSION${GRASS_BUILD_VERSION}})
     set(GRASS_MINOR_VERSION ${GRASS_MINOR_VERSION${GRASS_BUILD_VERSION}})
 
-    if (WITH_QT6)
+    if (BUILD_WITH_QT6)
       QT6_WRAP_UI (GRASS_PLUGIN_UIS_H ${GRASS_PLUGIN_UIS})
       QT6_WRAP_CPP (GRASS_PLUGIN_MOC_SRCS ${GRASS_PLUGIN_MOC_HDRS})
     else()
diff --git a/src/plugins/offline_editing/CMakeLists.txt b/src/plugins/offline_editing/CMakeLists.txt
index e42cb320e85..bb1c90af545 100644
--- a/src/plugins/offline_editing/CMakeLists.txt
+++ b/src/plugins/offline_editing/CMakeLists.txt
@@ -18,7 +18,7 @@ set (offline_editing_plugin_RCCS  offline_editing_plugin.qrc)
 ########################################################
 # Build
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_UI(offline_editing_plugin_UIS_H ${offline_editing_plugin_UIS})
 else()
   QT5_WRAP_UI(offline_editing_plugin_UIS_H ${offline_editing_plugin_UIS})
diff --git a/src/plugins/topology/CMakeLists.txt b/src/plugins/topology/CMakeLists.txt
index 1e0ee537719..3a2b08d0084 100644
--- a/src/plugins/topology/CMakeLists.txt
+++ b/src/plugins/topology/CMakeLists.txt
@@ -21,7 +21,7 @@ set (topol_RCCS  topol.qrc)
 ########################################################
 # Build
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_UI (topol_UIS_H  ${topol_UIS})
 else()
   QT5_WRAP_UI (topol_UIS_H  ${topol_UIS})
diff --git a/src/providers/arcgisrest/CMakeLists.txt b/src/providers/arcgisrest/CMakeLists.txt
index a2407e138f3..5d6627d20b9 100644
--- a/src/providers/arcgisrest/CMakeLists.txt
+++ b/src/providers/arcgisrest/CMakeLists.txt
@@ -37,7 +37,7 @@ target_link_libraries (provider_arcgisfeatureserver_a
 )
 
 if (WITH_GUI)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(AFS_UIS_H ${AFS_UIS})
   else()
     QT5_WRAP_UI(AFS_UIS_H ${AFS_UIS})
diff --git a/src/providers/delimitedtext/CMakeLists.txt b/src/providers/delimitedtext/CMakeLists.txt
index ccc3db0fc2b..671a5cef690 100644
--- a/src/providers/delimitedtext/CMakeLists.txt
+++ b/src/providers/delimitedtext/CMakeLists.txt
@@ -30,7 +30,7 @@ target_compile_features(provider_delimitedtext_a PRIVATE cxx_std_17)
 target_compile_definitions(provider_delimitedtext_a PRIVATE "-DQT_NO_FOREACH")
 
 if (WITH_GUI)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(DTEXT_UIS_H ${DTEXT_UIS})
   else()
     QT5_WRAP_UI(DTEXT_UIS_H ${DTEXT_UIS})
diff --git a/src/providers/grass/CMakeLists.txt b/src/providers/grass/CMakeLists.txt
index 6fe8fb49453..d4902fcf0a8 100644
--- a/src/providers/grass/CMakeLists.txt
+++ b/src/providers/grass/CMakeLists.txt
@@ -62,7 +62,7 @@ macro(ADD_GRASSLIB GRASS_BUILD_VERSION)
       )
     endif()
 
-    if (WITH_QT6)
+    if (BUILD_WITH_QT6)
       QT6_WRAP_UI (GRASS_LIBRARY_UIS_H
 	../qgsgrassoptionsbase.ui
       )
diff --git a/src/providers/postgres/CMakeLists.txt b/src/providers/postgres/CMakeLists.txt
index f52ed6e0c59..4e90e99ebb5 100644
--- a/src/providers/postgres/CMakeLists.txt
+++ b/src/providers/postgres/CMakeLists.txt
@@ -57,7 +57,7 @@ target_link_libraries (provider_postgres_a
 )
 
 if (WITH_GUI)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(PG_UIS_H ${PG_UIS})
   else()
     QT5_WRAP_UI(PG_UIS_H ${PG_UIS})
diff --git a/src/providers/spatialite/CMakeLists.txt b/src/providers/spatialite/CMakeLists.txt
index 668e48a17d8..a9de25a4059 100644
--- a/src/providers/spatialite/CMakeLists.txt
+++ b/src/providers/spatialite/CMakeLists.txt
@@ -47,7 +47,7 @@ target_compile_features(provider_spatialite_a PRIVATE cxx_std_17)
 target_compile_definitions(provider_spatialite_a PRIVATE "-DQT_NO_FOREACH")
 
 if (WITH_GUI)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(SPATIALITE_UIS_H ${SPATIALITE_UIS})
   else()
     QT5_WRAP_UI(SPATIALITE_UIS_H ${SPATIALITE_UIS})
diff --git a/src/providers/virtual/CMakeLists.txt b/src/providers/virtual/CMakeLists.txt
index ed5af0cb903..281e1156c03 100644
--- a/src/providers/virtual/CMakeLists.txt
+++ b/src/providers/virtual/CMakeLists.txt
@@ -50,7 +50,7 @@ target_compile_features(provider_virtuallayer_a PRIVATE cxx_std_17)
 target_compile_definitions(provider_virtuallayer_a PRIVATE "-DQT_NO_FOREACH")
 
 if (WITH_GUI)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(VLAYER_PROVIDER_UIS_H qgsvirtuallayersourceselectbase.ui qgsembeddedlayerselect.ui)
   else()
     QT5_WRAP_UI(VLAYER_PROVIDER_UIS_H qgsvirtuallayersourceselectbase.ui qgsembeddedlayerselect.ui)
diff --git a/src/providers/wfs/CMakeLists.txt b/src/providers/wfs/CMakeLists.txt
index 8ea02349ddd..ea071baca48 100644
--- a/src/providers/wfs/CMakeLists.txt
+++ b/src/providers/wfs/CMakeLists.txt
@@ -60,7 +60,7 @@ target_compile_features(provider_wfs_a PRIVATE cxx_std_17)
 target_compile_definitions(provider_wfs_a PRIVATE "-DQT_NO_FOREACH")
 
 if (WITH_GUI)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(WFS_UIS_H ${WFS_UIS})
   else()
     QT5_WRAP_UI(WFS_UIS_H ${WFS_UIS})
diff --git a/src/providers/wms/CMakeLists.txt b/src/providers/wms/CMakeLists.txt
index 558189d954c..73f442236e5 100644
--- a/src/providers/wms/CMakeLists.txt
+++ b/src/providers/wms/CMakeLists.txt
@@ -33,7 +33,7 @@ target_include_directories(provider_wms_a PUBLIC
 target_compile_features(provider_wms_a PRIVATE cxx_std_17)
 
 if (WITH_GUI)
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     QT6_WRAP_UI(WMS_UIS_H ${WMS_UIS})
   else()
     QT5_WRAP_UI(WMS_UIS_H ${WMS_UIS})
diff --git a/src/quickgui/CMakeLists.txt b/src/quickgui/CMakeLists.txt
index 426d6ebb87f..a51f5a7a7ed 100644
--- a/src/quickgui/CMakeLists.txt
+++ b/src/quickgui/CMakeLists.txt
@@ -34,7 +34,7 @@ include_directories(SYSTEM
 
 ############################################################
 # qgis_quick shared library
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_CPP(QGIS_QUICK_GUI_MOC_SRCS ${QGIS_QUICK_GUI_MOC_HDRS})
 else()
   QT5_WRAP_CPP(QGIS_QUICK_GUI_MOC_SRCS ${QGIS_QUICK_GUI_MOC_HDRS})
@@ -55,14 +55,14 @@ add_library(qgis_quick ${LIBRARY_TYPE}
 # require c++17
 target_compile_features(qgis_quick PRIVATE cxx_std_17)
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   target_link_libraries(qgis_quick Qt6::Quick Qt6::Qml Qt6::Xml Qt6::Concurrent Qt6::Positioning qgis_core)
 else()
   target_link_libraries(qgis_quick Qt5::Quick Qt5::Qml Qt5::Xml Qt5::Concurrent Qt5::Positioning qgis_core)
 endif()
 
 if(CMAKE_SYSTEM_NAME STREQUAL "Android")
-  if (WITH_QT6)
+  if (BUILD_WITH_QT6)
     target_link_libraries(qgis_quick Qt6::AndroidExtras)
   else()
     target_link_libraries(qgis_quick Qt5::AndroidExtras)
diff --git a/src/quickgui/plugin/CMakeLists.txt b/src/quickgui/plugin/CMakeLists.txt
index 0b25d899a81..fa42bede1d4 100644
--- a/src/quickgui/plugin/CMakeLists.txt
+++ b/src/quickgui/plugin/CMakeLists.txt
@@ -43,7 +43,7 @@ include_directories(SYSTEM
 ############################################################
 # qgis_quick_plugin module (QML) library
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_CPP(QGIS_QUICK_PLUGIN_MOC_SRCS ${QGIS_QUICK_PLUGIN_MOC_HDRS})
 else()
   QT5_WRAP_CPP(QGIS_QUICK_PLUGIN_MOC_SRCS ${QGIS_QUICK_PLUGIN_MOC_HDRS})
diff --git a/src/ui/CMakeLists.txt b/src/ui/CMakeLists.txt
index a8cf7f88b58..aac27a9d4e5 100644
--- a/src/ui/CMakeLists.txt
+++ b/src/ui/CMakeLists.txt
@@ -18,7 +18,7 @@ file(GLOB ATTRIBUTEFORMCONFIG_UIS "${CMAKE_CURRENT_SOURCE_DIR}/attributeformconf
 file(GLOB GEOREFERENCER_UIS "${CMAKE_CURRENT_SOURCE_DIR}/georeferencer/*.ui")
 file(GLOB ANNOTATION_UIS "${CMAKE_CURRENT_SOURCE_DIR}/annotations/*.ui")
 
-if (WITH_QT6)
+if (BUILD_WITH_QT6)
   QT6_WRAP_UI(QGIS_UIS_H
     ${QGIS_UIS}
     ${SYMBOLLAYER_UIS}