1fsdev_ss = ss.source_set() 2fsdev_ss.add(files('qemu-fsdev-opts.c', 'qemu-fsdev-throttle.c')) 3fsdev_ss.add(when: ['CONFIG_FSDEV_9P'], if_true: files( 4 '9p-iov-marshal.c', 5 '9p-marshal.c', 6 'qemu-fsdev.c', 7), if_false: files('qemu-fsdev-dummy.c')) 8if host_os in ['linux', 'darwin'] 9 system_ss.add_all(fsdev_ss) 10endif 11