Implement `quote!` and other `proc_macro` API.

2 files changed, 1 insertions, 9 deletions

diff --git a/src/tools/tidy/src/cargo.rs b/src/tools/tidy/src/cargo.rs
index c8c6cb0ee6b..f40fea60f40 100644
--- a/src/tools/tidy/src/cargo.rs
+++ b/src/tools/tidy/src/cargo.rs
@@ -91,14 +91,6 @@ fn verify(tomlfile: &Path, libfile: &Path, bad: &mut bool) {
             continue
         }
 
-        // We want the compiler to depend on the proc_macro_plugin crate so
-        // that it is built and included in the end, but we don't want to
-        // actually use it in the compiler.
-        if toml.contains("name = \"rustc_driver\"") &&
-           krate == "proc_macro_plugin" {
-            continue
-        }
-
         if !librs.contains(&format!("extern crate {}", krate)) {
             tidy_error!(bad, "{} doesn't have `extern crate {}`, but Cargo.toml \
                               depends on it", libfile.display(), krate);
diff --git a/src/tools/tidy/src/features.rs b/src/tools/tidy/src/features.rs
index 722fc2b317e..d98c6932c51 100644
--- a/src/tools/tidy/src/features.rs
+++ b/src/tools/tidy/src/features.rs
@@ -245,7 +245,7 @@ fn get_and_check_lib_features(base_src_path: &Path,
                     let mut err = |msg: &str| {
                         tidy_error!(bad, "{}:{}: {}", file.display(), line, msg);
                     };
-                    if lang_features.contains_key(name) {
+                    if lang_features.contains_key(name) && feature_name != "proc_macro" {
                         err("duplicating a lang feature");
                     }
                     if let Some(ref s) = lib_features.get(name) {