fix(dependencies): use working version of serde-codegen

This update fixes the build on stable, and allows builds
on nightly as usual.

The trick is to use the latest version of serde-codegen,
which keeps the syntex version internal, preventing clashes
between libraries that might have different requirements.

.travis.yml

@@ -19,5 +19,5 @@ env:
   global:
     secure: Plj5DqAQX/4+KPM+nOAZ2sCbGIsoSrHo1YggfesQnU7paR734XO/4IayWnsNO/3q6bDi4GIcn56RUZAD3xBJJBNLia2CYIickIIYORRqLWbLdbzQaxBbD670ahtzEuUSFJTRKURPwFteAnsWYgNMNzwXOVNwLS5IUBqWTcS+N0g=
   matrix:
-    - FEATURE=with-syntex
+    - FEATURE=with-serde-codegen
     - FEATURE=nightly

src/mako/Cargo.toml.mako

@@ -32,7 +32,7 @@ mime = "^ 0.2.0"
 serde = "^ 0.7.5"
 serde_json = "^ 0.7.0"
 yup-oauth2 = { version = "^ 0.6.0", optional = true, default-features = false }
-serde_macros = { version = "0.7.5", optional = true }
+serde_macros = { version = "^ 0.7.5", optional = true }
 % for dep in cargo.get('dependencies', list()):
 ${dep}
 % endfor
@@ -43,20 +43,19 @@ ${dep}
   crate_name_we_depend_on = None
   
   nightly_features = ["serde_macros", "yup-oauth2/nightly"]
-  default_features = ["serde_codegen", "syntex", "yup-oauth2/with-syntex"]
+  default_features = ["serde_codegen", "yup-oauth2/with-serde-codegen"]
   
   if make.depends_on_suffix is not None:
     crate_name_we_depend_on = library_to_crate_name(api_name, suffix=make.depends_on_suffix)
     nightly_features.append(crate_name_we_depend_on + '/nightly')
-    default_features.append(crate_name_we_depend_on + '/with-syntex')
+    default_features.append(crate_name_we_depend_on + '/with-serde-codegen')
 %>\
-default = ["with-syntex"]
+default = ["with-serde-codegen"]
 nightly = [${','.join(enclose_in('"', nightly_features))}]
-with-syntex = [${','.join(enclose_in('"', default_features))}]
+with-serde-codegen = [${','.join(enclose_in('"', default_features))}]
 
 [build-dependencies]
-syntex = { version = "= 0.32", optional = true }
-serde_codegen = { version = "= 0.7.5", optional = true }
+serde_codegen = { version = "^ 0.7.14", optional = true }
 
 % if make.depends_on_suffix is not None:
 

src/mako/api/build.rs.mako

@@ -1,7 +1,5 @@
-<%namespace name="util" file="../lib/util.mako"/>\
-#[cfg(feature = "with-syntex")]
+#[cfg(feature = "with-serde-codegen")]
 mod inner {
-    extern crate syntex;
     extern crate serde_codegen;
 
     use std::env;
@@ -13,13 +11,11 @@ mod inner {
         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("${util.crate_name()}", &src, &dst).unwrap();
+        serde_codegen::expand(&src, &dst).unwrap();
     }
 }
 
-#[cfg(not(feature = "with-syntex"))]
+#[cfg(not(feature = "with-serde-codegen"))]
 mod inner {
     pub fn main() {}
 }

src/mako/api/lib.rs.mako

@@ -24,5 +24,5 @@ ${lib.docs(c)}
 #[cfg(feature = "nightly")]
 include!("lib.rs.in");
 
-#[cfg(feature = "with-syntex")]
+#[cfg(feature = "with-serde-codegen")]
 include!(concat!(env!("OUT_DIR"), "/lib.rs"));