From 996fff28aad216510e75e045a0d95832dd4fe893 Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Mon, 25 Jan 2016 16:20:25 +0100
Subject: [PATCH] =?UTF-8?q?Don=E2=80=99t=20rebuild=20library=20when=20test?=
 =?UTF-8?q?s=20changes.?=
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Cargo’s default is to re-run build scripts (and therefore rebuild stuff)
whenever any file changes.
We can be more precise.
---
 build.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/build.rs b/build.rs
index 008de90b..b0146389 100644
--- a/build.rs
+++ b/build.rs
@@ -29,7 +29,9 @@ fn main() {
 
     named_entities_to_phf(
         &Path::new(&manifest_dir).join("data/entities.json"),
-        &Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"))
+        &Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"));
+
+    println!("cargo:rerun-if-changed={}", rules_rs.display());
 }
 
 #[cfg(feature = "codegen")]