chore(update): make regen-apis

Fixes #151

gen/taskqueue1_beta2/src/build.rs

@@ -1,16 +1,28 @@
-extern crate syntex;
-extern crate serde_codegen;
+#[cfg(feature = "with-syntex")]
+mod inner {
+    extern crate syntex;
+    extern crate serde_codegen;
 
-use std::env;
-use std::path::Path;
+    use std::env;
+    use std::path::Path;
+
+    pub fn main() {
+        let out_dir = env::var_os("OUT_DIR").unwrap();
+
+        let src = Path::new("src/lib.rs.in");
+        let dst = Path::new(&out_dir).join("lib.rs");
+
+        let mut registry = syntex::Registry::new();
+        serde_codegen::register(&mut registry);
+        registry.expand("google-taskqueue1_beta2", &src, &dst).unwrap();
+    }
+}
+
+#[cfg(not(feature = "with-syntex"))]
+mod inner {
+    pub fn main() {}
+}
 
 pub fn main() {
-    let out_dir = env::var_os("OUT_DIR").unwrap();
-
-    let src = Path::new("src/lib.rs.in");
-    let dst = Path::new(&out_dir).join("lib.rs");
-
-    let mut registry = syntex::Registry::new();
-    serde_codegen::register(&mut registry);
-    registry.expand("google-taskqueue1_beta2", &src, &dst).unwrap();
-}
+    inner::main()
+}

gen/taskqueue1_beta2/src/lib.rs

@@ -182,6 +182,12 @@
 // We don't warn about this, as depending on the API, some data structures or facilities are never used.
 // Instead of pre-determining this, we just disable the lint. It's manually tuned to not have any 
 // unused imports in fully featured APIs. Same with unused_mut ... .
+#![cfg_attr(feature = "nightly", feature(custom_derive, custom_attribute, plugin))]
+#![cfg_attr(feature = "nightly", plugin(serde_macros))]
 #![allow(unused_imports, unused_mut, dead_code)]
 
+#[cfg(feature = "nightly")]
+include!("lib.rs.in");
+
+#[cfg(feature = "with-syntex")]
 include!(concat!(env!("OUT_DIR"), "/lib.rs"));