+
+NNCP depends on @code{github.com/fsnotify/fsnotify} library, that is
+solely relies on OS-specific mechanisms. There is possibility that you
+have either broken or unsupported ones. You can still build NNCP with
+@code{-tags nofsnotify} build option, to skip @code{fsnotify} library
+usage at all:
+
+@example
+$ GO_CFLAGS="-tags nofsnotify" redo ...
+@end example
+
+You can also disable Yggdrasil support with @code{-tags noyggdrasil}.