Introduce an inprocess feature

This is used to enable the fake IPC implementation using inprocess channels.
The feature has to be manually enabled on platforms that aren't supported
by the crate, i.e. Windows and Android.

Cargo.toml

@@ -6,6 +6,9 @@ version = "0.2.4"
 name = "ipc_channel"
 path = "lib.rs"
 
+[features]
+inprocess = []
+
 [dependencies]
 bincode = ">=0.4.1, <0.6"
 lazy_static = "0.2"

appveyor.yml

@@ -13,4 +13,4 @@ install:
 build: false
 
 test_script:
-  - cargo test --verbose
+  - cargo test --verbose --features inprocess

lib.rs

@@ -7,8 +7,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![cfg_attr(feature = "inprocess", feature(mpsc_select))]
 #![feature(borrow_state)]
-#![cfg_attr(any(target_os="windows", target_os="android"), feature(mpsc_select))]
 
 #[macro_use]
 extern crate lazy_static;

platform/mod.rs

@@ -8,13 +8,13 @@
 // except according to those terms.
 
 mod os {
-    #[cfg(target_os = "linux")]
+    #[cfg(all(not(feature = "inprocess"), target_os = "linux"))]
     include!("linux/mod.rs");
 
-    #[cfg(target_os = "macos")]
+    #[cfg(all(not(feature = "inprocess"), target_os = "macos"))]
     include!("macos/mod.rs");
 
-    #[cfg(any(target_os = "windows", target_os = "android"))]
+    #[cfg(feature = "inprocess")]
     include!("inprocess/mod.rs");
 }