From 9b99ebc36443cdc2e4ffca062e55b48c51d98c91 Mon Sep 17 00:00:00 2001
From: Bryant Mairs <bryantmairs@google.com>
Date: Sun, 14 Jan 2018 16:32:34 -0800
Subject: [PATCH] Fail to compile for any unused code

---
 src/lib.rs       |  3 +--
 src/sys/aio.rs   | 10 +++++-----
 src/sys/mman.rs  |  6 +++++-
 src/sys/quota.rs |  3 ---
 src/sys/wait.rs  |  4 +++-
 5 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 28d67f6f2d..e5972b4423 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,9 +10,8 @@
 #![allow(dead_code)]
 #![cfg_attr(test, deny(warnings))]
 #![recursion_limit = "500"]
-#![deny(unused_qualifications)]
+#![deny(unused)]
 #![deny(unstable_features)]
-#![deny(unused_import_braces)]
 #![deny(missing_copy_implementations)]
 #![deny(missing_debug_implementations)]
 
diff --git a/src/sys/aio.rs b/src/sys/aio.rs
index d85ecfa11f..349ff31901 100644
--- a/src/sys/aio.rs
+++ b/src/sys/aio.rs
@@ -86,7 +86,7 @@ pub struct AioCb<'a> {
     /// Could this `AioCb` potentially have any in-kernel state?
     in_progress: bool,
     /// Used to keep buffers from Drop'ing
-    keeper: Keeper<'a>
+    _keeper: Keeper<'a>
 }
 
 impl<'a> AioCb<'a> {
@@ -115,7 +115,7 @@ impl<'a> AioCb<'a> {
             aiocb: a,
             mutable: false,
             in_progress: false,
-            keeper: Keeper::none
+            _keeper: Keeper::none
         }
     }
 
@@ -143,7 +143,7 @@ impl<'a> AioCb<'a> {
             aiocb: a,
             mutable: true,
             in_progress: false,
-            keeper: Keeper::phantom(PhantomData)
+            _keeper: Keeper::phantom(PhantomData)
         }
     }
 
@@ -174,7 +174,7 @@ impl<'a> AioCb<'a> {
             aiocb: a,
             mutable: true,
             in_progress: false,
-            keeper: Keeper::boxed(buf)
+            _keeper: Keeper::boxed(buf)
         }
     }
 
@@ -208,7 +208,7 @@ impl<'a> AioCb<'a> {
             aiocb: a,
             mutable: false,
             in_progress: false,
-            keeper: Keeper::none
+            _keeper: Keeper::none
         }
     }
 
diff --git a/src/sys/mman.rs b/src/sys/mman.rs
index 5b4bd4f57d..9d1f88df89 100644
--- a/src/sys/mman.rs
+++ b/src/sys/mman.rs
@@ -1,7 +1,11 @@
-use {Error, Result, NixPath};
+use {Error, Result};
+#[cfg(not(target_os = "android"))]
+use NixPath;
 use errno::Errno;
+#[cfg(not(target_os = "android"))]
 use fcntl::OFlag;
 use libc::{self, c_int, c_void, size_t, off_t};
+#[cfg(not(target_os = "android"))]
 use sys::stat::Mode;
 use std::os::unix::io::RawFd;
 
diff --git a/src/sys/quota.rs b/src/sys/quota.rs
index 6d8e6267b0..b4cac1dc9b 100644
--- a/src/sys/quota.rs
+++ b/src/sys/quota.rs
@@ -33,9 +33,6 @@ libc_enum!{
         Q_SYNC,
         Q_QUOTAON,
         Q_QUOTAOFF,
-        Q_GETFMT,
-        Q_GETINFO,
-        Q_SETINFO,
         Q_GETQUOTA,
         Q_SETQUOTA,
     }
diff --git a/src/sys/wait.rs b/src/sys/wait.rs
index 53c6a5f2e2..038354b107 100644
--- a/src/sys/wait.rs
+++ b/src/sys/wait.rs
@@ -141,6 +141,7 @@ fn stop_signal(status: i32) -> Result<Signal> {
     Signal::from_c_int(unsafe { libc::WSTOPSIG(status) })
 }
 
+#[cfg(any(target_os = "android", target_os = "linux"))]
 fn syscall_stop(status: i32) -> bool {
     // From ptrace(2), setting PTRACE_O_TRACESYSGOOD has the effect
     // of delivering SIGTRAP | 0x80 as the signal number for syscall
@@ -149,6 +150,7 @@ fn syscall_stop(status: i32) -> bool {
     unsafe { libc::WSTOPSIG(status) == libc::SIGTRAP | 0x80 }
 }
 
+#[cfg(any(target_os = "android", target_os = "linux"))]
 fn stop_additional(status: i32) -> c_int {
     (status >> 16) as c_int
 }
@@ -182,7 +184,7 @@ impl WaitStatus {
             WaitStatus::Signaled(pid, try!(term_signal(status)), dumped_core(status))
         } else if stopped(status) {
             cfg_if! {
-                if #[cfg(any(target_os = "linux", target_os = "android"))] {
+                if #[cfg(any(target_os = "android", target_os = "linux"))] {
                     fn decode_stopped(pid: Pid, status: i32) -> Result<WaitStatus> {
                         let status_additional = stop_additional(status);
                         Ok(if syscall_stop(status) {