ci: fix compile errors around conditional code (#17)

boringtun/src/device/kqueue.rs

@@ -215,7 +215,7 @@ impl<H: Send + Sync> EventPoll<H> {
         };
 
         let (trigger, index) = match ev.kind {
-            EventKind::FD | EventKind::Signal => (ev.event.ident as RawFd, ev.event.ident as usize),
+            EventKind::FD | EventKind::Signal => (ev.event.ident as RawFd, ev.event.ident),
             EventKind::Timer | EventKind::Notifier => (-(events.len() as RawFd) - 1, events.len()), // Custom events get negative identifiers, hopefully we will never have more than 2^31 events of each type
         };
 
@@ -291,7 +291,9 @@ impl<H: Send + Sync> EventPoll<H> {
 }
 
 impl<H> EventPoll<H> {
-    // This function is only safe to call when the event loop is not running
+    /// # Safety
+    ///
+    /// This function is only safe to call when the event loop is not running
     pub unsafe fn clear_event_by_fd(&self, index: RawFd) {
         let (mut events, index) = if index >= 0 {
             (self.events.lock(), index as usize)

boringtun/src/device/peer.rs

@@ -101,6 +101,10 @@ impl Peer {
         }
     }
 
+    #[cfg_attr(
+        not(any(target_os = "android", target_os = "fuchsia", target_os = "linux")),
+        allow(unused_variables)
+    )]
     pub fn connect_endpoint(
         &self,
         port: u16,

boringtun/src/device/tun_darwin.rs

@@ -87,7 +87,7 @@ pub fn parse_utun_name(name: &str) -> Result<u32, Error> {
 
 impl TunSocket {
     fn write(&self, src: &[u8], af: u8) -> usize {
-        let mut hdr = [0u8, 0u8, 0u8, af as u8];
+        let mut hdr = [0u8, 0u8, 0u8, af];
         let mut iov = [
             iovec {
                 iov_base: hdr.as_mut_ptr() as _,

boringtun/src/lib.rs

@@ -17,6 +17,7 @@ pub mod noise;
 #[cfg(not(feature = "mock-instant"))]
 pub(crate) mod sleepyinstant;
 
+#[cfg(any(feature = "ffi-bindings", feature = "device"))]
 pub(crate) mod serialization;
 
 /// Re-export of the x25519 types