From 5335230174168bd343a47f7d615baa28b8af5afb Mon Sep 17 00:00:00 2001
From: Anders Olsson <anders.e.olsson@gmail.com>
Date: Wed, 19 Aug 2020 11:56:10 +0200
Subject: [PATCH] Only build if there is a change.

---
 wordlang/build.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/wordlang/build.rs b/wordlang/build.rs
index 245bff8..225e7a7 100644
--- a/wordlang/build.rs
+++ b/wordlang/build.rs
@@ -63,6 +63,9 @@ fn read_mappings() -> Result<(HashMap<String, Vec<String>>, HashMap<String, Stri
 }
 
 fn main() -> Result<(), Box<dyn Error>> {
+    println!("cargo:rerun-if-changed=iso-639-3-macrolanguages.tab");
+    println!("cargo:rerun-if-changed=languages.txt");
+
     let languages = read_languages()?;
     let (m_to_l, l_to_m) = read_mappings()?;