Enable termios on iOS and move it to Tier 2

.travis.yml

@@ -108,23 +108,6 @@ matrix:
       rust: nightly
 
   allow_failures:
-    # iOS is still being worked on, so for now don't block on compilation failures
-    - env: TARGET=aarch64-apple-ios DISABLE_TESTS=1
-      rust: 1.13.0
-      os: osx
-    - env: TARGET=armv7-apple-ios DISABLE_TESTS=1
-      rust: 1.13.0
-      os: osx
-    - env: TARGET=armv7s-apple-ios DISABLE_TESTS=1
-      rust: 1.13.0
-      os: osx
-    - env: TARGET=i386-apple-ios DISABLE_TESTS=1
-      rust: 1.13.0
-      os: osx
-    - env: TARGET=x86_64-apple-ios DISABLE_TESTS=1
-      rust: 1.13.0
-      os: osx
-
     # Planning to add these targets, but they can fail for now
     - env: TARGET=mips64-unknown-linux-gnuabi64
       rust: 1.13.0

README.md

@@ -67,24 +67,24 @@ Tier 1:
   * x86_64-unknown-linux-musl
 
 Tier 2:
-  * i686-unknown-freebsd
-  * x86_64-unknown-netbsd
+  * aarch64-apple-ios
   * aarch64-linux-android
   * arm-linux-androideabi
+  * armv7-apple-ios
   * armv7-linux-androideabi
+  * armv7s-apple-ios
+  * i386-apple-ios
   * i686-linux-android (requires Rust >= 1.18)
+  * i686-unknown-freebsd
+  * x86_64-apple-ios
   * x86_64-linux-android (requires Rust >= 1.18)
+  * x86_64-unknown-netbsd
 
 Tier 3:
-  * aarch64-apple-ios
   * arm-unknown-linux-musleabi (requires Rust >= 1.14)
-  * armv7-apple-ios
-  * armv7s-apple-ios
-  * i386-apple-ios
   * mips64-unknown-linux-gnuabi64
   * mips64el-unknown-linux-gnuabi64
   * s390x-unknown-linux-gnu
-  * x86_64-apple-ios
 
 ## Usage
 

src/sys/mod.rs

@@ -38,7 +38,6 @@ pub mod syscall;
 #[cfg(any(target_os = "linux"))]
 pub mod reboot;
 
-#[cfg(not(target_os = "ios"))]
 pub mod termios;
 
 #[cfg(any(target_os = "linux", target_os = "android"))]