@jonasschnelli wrote in #14979:
> #14573 broke < Qt5.6 compatibility due to calling the lambda version of `addAction` that was added in Qt5.6.

We currently [support](https://github.com/bitcoin/bitcoin/blob/master/doc/dependencies.md) QT >=5.2, but hardly anyone tests with that. If we make one of the Travis machines use it, we should have a better change of catching this.

See also discussion about minimum QT version in #13478 
#include <interfaces/wallet.h>
#include <amount.h>
#include <chain.h>
#include <consensus/validation.h>
#include <init.h>
#include <interfaces/chain.h>
#include <interfaces/handler.h>
#include <net.h>
#include <policy/feerate.h>
#include <policy/fees.h>
#include <policy/policy.h>
#include <primitives/transaction.h>
#include <rpc/server.h>
#include <scheduler.h>
#include <script/ismine.h>
#include <script/standard.h>
#include <support/allocators/secure.h>
#include <sync.h>
#include <timedata.h>
#include <ui_interface.h>
#include <uint256.h>
#include <util/system.h>
#include <validation.h>
#include <wallet/feebumper.h>
#include <wallet/fees.h>
#include <wallet/rpcwallet.h>
#include <wallet/wallet.h>
#include <wallet/walletutil.h>