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-rw-r--r--cmake/QtInternalTargets.cmake4
-rw-r--r--mkspecs/features/qt_common.prf2
2 files changed, 6 insertions, 0 deletions
diff --git a/cmake/QtInternalTargets.cmake b/cmake/QtInternalTargets.cmake
index 00a4ad6f75..db3257d2f2 100644
--- a/cmake/QtInternalTargets.cmake
+++ b/cmake/QtInternalTargets.cmake
@@ -176,6 +176,10 @@ if (MSVC)
)
endif()
+if (GCC AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "9.2")
+ target_compile_options(PlatformCommonInternal INTERFACE $<$<COMPILE_LANGUAGE:CXX>:-Wsuggest-override>)
+endif()
+
function(qt_get_implicit_sse2_genex_condition out_var)
set(is_shared_lib "$<STREQUAL:$<TARGET_PROPERTY:TYPE>,SHARED_LIBRARY>")
set(is_static_lib "$<STREQUAL:$<TARGET_PROPERTY:TYPE>,STATIC_LIBRARY>")
diff --git a/mkspecs/features/qt_common.prf b/mkspecs/features/qt_common.prf
index 421adcdaa0..b93c1d42a5 100644
--- a/mkspecs/features/qt_common.prf
+++ b/mkspecs/features/qt_common.prf
@@ -112,6 +112,8 @@ clang {
greaterThan(QT_GCC_MAJOR_VERSION, 6): QMAKE_CXXFLAGS_WARN_ON += -Wno-stringop-overflow
# GCC 9 introduced -Wformat-overflow in -Wall, but it is buggy:
greaterThan(QT_GCC_MAJOR_VERSION, 8): QMAKE_CXXFLAGS_WARN_ON += -Wno-format-overflow
+ ver = $${QT_GCC_MAJOR_VERSION}.$${QT_GCC_MINOR_VERSION}
+ versionAtLeast(ver, 9.2): QMAKE_CXXFLAGS_WARN_ON += -Wsuggest-override
}
warnings_are_errors:warning_clean {