fsdev_ss = ss.source_set()
fsdev_ss.add(files('qemu-fsdev-opts.c', 'qemu-fsdev-throttle.c'))
-fsdev_ss.add(when: 'CONFIG_ALL', if_true: files('qemu-fsdev-dummy.c'))
fsdev_ss.add(when: ['CONFIG_FSDEV_9P'], if_true: files(
'9p-iov-marshal.c',
'9p-marshal.c',
'qemu-fsdev.c',
), if_false: files('qemu-fsdev-dummy.c'))
-system_ss.add_all(when: 'CONFIG_LINUX', if_true: fsdev_ss)
-system_ss.add_all(when: 'CONFIG_DARWIN', if_true: fsdev_ss)
+if targetos in ['linux', 'darwin']
+ system_ss.add_all(fsdev_ss)
+endif
if have_virtfs_proxy_helper
executable('virtfs-proxy-helper',