i386_ss.add(when: 'CONFIG_KVM', if_false: files('kvm-stub.c')) i386_softmmu_ss.add(when: 'CONFIG_KVM', if_true: files('kvm.c')) i386_softmmu_ss.add(when: 'CONFIG_HYPERV', if_true: files('hyperv.c'), if_false: files('hyperv-stub.c'))