Only rerun the build script if the C++ sources changed

fitzgen · fitzgen · commit cc49a08fd7c2 · 2019-11-26T11:51:25.000-08:00
diff --git a/build.rs b/build.rs
@@ -18,6 +18,7 @@ fn main() {
             .filter(|p| p.extension().map(|ext| ext == "cpp") == Some(true))
             .collect::<Vec<_>>();
         for source in sources.iter() {
+            println!("cargo:rerun-if-changed={}", source.display());
             build.file(source.to_str().unwrap());
         }
         build.flag("-std=c++11");

Original file line number	Diff line number	Diff line change
`@@ -18,6 +18,7 @@ fn main() {`
`18`	`18`	`.filter(\|p\| p.extension().map(\|ext\| ext == "cpp") == Some(true))`
`19`	`19`	`.collect::<Vec<_>>();`
`20`	`20`	`for source in sources.iter() {`
	`21`	`+ println!("cargo:rerun-if-changed={}", source.display());`
`21`	`22`	`build.file(source.to_str().unwrap());`
`22`	`23`	`}`
`23`	`24`	`build.flag("-std=c++11");`