softmmu_ss.add(files('accel-softmmu.c'))
user_ss.add(files('accel-user.c'))
-subdir('hvf')
-subdir('qtest')
-subdir('kvm')
subdir('tcg')
-subdir('xen')
-subdir('stubs')
+if have_system
+ subdir('hvf')
+ subdir('qtest')
+ subdir('kvm')
+ subdir('xen')
+ subdir('stubs')
+endif
dummy_ss = ss.source_set()
dummy_ss.add(files(