Enable benchmarking only with a feature. >:-(

Cargo.toml

@@ -12,5 +12,8 @@ documentation = "http://www.rust-ci.org/kennytm/qrcode-rust/doc/qrcode/index.htm
 [dependencies]
 num = "*"
 
+[features]
+bench = []
+
 [[bin]]
 name = "qrencode"

src/bits.rs

@@ -2,7 +2,7 @@
 
 use std::cmp::min;
 
-#[cfg(test)]
+#[cfg(feature="bench")]
 use test::Bencher;
 
 use types::{QrResult, QrError, Mode, EcLevel, Version};
@@ -122,6 +122,7 @@ fn test_push_number() {
                            0b1__0000000]);  // 128
 }
 
+#[cfg(feature="bench")]
 #[bench]
 fn bench_push_splitted_bytes(bencher: &mut Bencher) {
     bencher.iter(|| {

src/lib.rs

@@ -18,9 +18,9 @@
 //!     }
 //!
 
-#![cfg_attr(test, feature(test))] // Unstable libraries
+#![cfg_attr(feature="bench", feature(test))] // Unstable libraries
 
-#[cfg(test)]
+#[cfg(feature="bench")]
 extern crate test;
 extern crate num;
 

src/optimize.rs

@@ -2,7 +2,7 @@
 use std::slice::Iter;
 use types::{Mode, Version};
 
-#[cfg(test)]
+#[cfg(feature="bench")]
 use test::Bencher;
 
 //------------------------------------------------------------------------------
@@ -451,6 +451,7 @@ mod optimize_tests {
 
 }
 
+#[cfg(feature="bench")]
 #[bench]
 fn bench_optimize(bencher: &mut Bencher) {
     use types::Version;