Fix unused code warnings on other platforms

Author: eldruin

examples/nunchuck.rs

@@ -57,6 +57,7 @@ mod nunchuck {
     // TODO: Move Nunchuck code out to be an actual sensor and add tests
 
     #[derive(Debug)]
+    #[allow(dead_code)]
     pub struct NunchuckReading {
         pub joystick_x: u8,
         pub joystick_y: u8,
@@ -186,9 +187,12 @@ mod nunchuck {
 #[cfg(any(target_os = "linux", target_os = "android"))]
 use nunchuck::*;
 
+#[cfg(any(target_os = "linux", target_os = "android"))]
 use docopt::Docopt;
+#[cfg(any(target_os = "linux", target_os = "android"))]
 use std::env::args;
 
+#[cfg(any(target_os = "linux", target_os = "android"))]
 const USAGE: &str = "
 Reading Wii Nunchuck data via Linux i2cdev.
 

examples/pca9956b.rs

@@ -10,13 +10,12 @@ extern crate docopt;
 extern crate i2cdev;
 
 #[cfg(any(target_os = "linux", target_os = "android"))]
-use i2cdev::core::{I2CMessage, I2CTransfer};
-#[cfg(any(target_os = "linux", target_os = "android"))]
-use i2cdev::linux::{LinuxI2CBus, LinuxI2CMessage};
-
-use docopt::Docopt;
-use std::env::args;
+use i2cdev::{
+    core::{I2CMessage, I2CTransfer},
+    linux::{LinuxI2CBus, LinuxI2CMessage},
+};
 
+#[cfg(any(target_os = "linux", target_os = "android"))]
 const USAGE: &str = "
 Reads registers from a PCA9956B IC via Linux i2cdev.
 
@@ -32,13 +31,17 @@ Options:
   --version    Show version.
 ";
 
+#[cfg(any(target_os = "linux", target_os = "android"))]
 const ADDR: u16 = 0x20;
 
 #[cfg(not(any(target_os = "linux", target_os = "android")))]
 fn main() {}
 
 #[cfg(any(target_os = "linux", target_os = "android"))]
 fn main() {
+    use docopt::Docopt;
+    use std::env::args;
+
     let args = Docopt::new(USAGE)
         .and_then(|d| d.argv(args()).parse())
         .unwrap_or_else(|e| e.exit());

examples/sensors.rs

@@ -17,13 +17,15 @@ extern crate byteorder;
 extern crate docopt;
 extern crate i2cdev;
 
+#[cfg(any(target_os = "linux", target_os = "android"))]
 use docopt::Docopt;
-use sensors::adxl345_accelerometer::*;
-use sensors::mpl115a2_barometer::*;
-use sensors::{Accelerometer, Barometer, Thermometer};
-use std::env::args;
-use std::thread;
-use std::time::Duration;
+#[cfg(any(target_os = "linux", target_os = "android"))]
+use sensors::{
+    adxl345_accelerometer::*, mpl115a2_barometer::*, Accelerometer, Barometer, Thermometer,
+};
+
+#[cfg(any(target_os = "linux", target_os = "android"))]
+use std::{env::args, thread, time::Duration};
 
 #[cfg(any(target_os = "linux", target_os = "android"))]
 use i2cdev::linux::*;