Prevent also the command-line setting of LYX_ENABLE_VALGRIND_TESTS
for the cmake versions < 3.17
LYX_OPTION(ENABLE_KEYTESTS "Enable for keytests" OFF ALL)
if (NOT CMAKE_VERSION VERSION_LESS "3.17")
LYX_OPTION(ENABLE_VALGRIND_TESTS "Enable for tests involving valgrind" OFF ALL)
+else()
+unset(LYX_ENABLE_VALGRIND_TESTS CACHE)
endif()
LYX_OPTION(ASAN "Use address sanitizer" OFF ALL)
#LYX_COMBO(USE_FILEDIALOG "Use native or QT file dialog" QT NATIVE)