These are linker options, and need to be present in order to link in the respective run-time support. Change-Id: Ieeb0cc5f068d2652303d3cd5e27759b49ce62771 Reviewed-by: Even Oscar Andersen <even.oscar.andersen@qt.io> Reviewed-by: Piotr Wierciński <piotr.wiercinski@qt.io>