From ba8757b44ac824b70c6e5ea10248c1d637716b0d Mon Sep 17 00:00:00 2001
From: Bert Belder <bertbelder@gmail.com>
Date: Sun, 16 Sep 2018 17:39:23 -0700
Subject: [PATCH] build: properly rebuild rust crates when their deps change

---
 build_extra/rust/rust.gni | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/build_extra/rust/rust.gni b/build_extra/rust/rust.gni
index 1600602e08..85959e921c 100644
--- a/build_extra/rust/rust.gni
+++ b/build_extra/rust/rust.gni
@@ -180,6 +180,8 @@ template("run_rustc") {
       deps = []
     }
 
+    inputs = []
+
     # Build the list of '--extern' arguments from the 'extern_infos' array.
     foreach(info, extern_infos) {
       rlib = "$out_dir/lib${info.crate_name_and_version}.rlib"
@@ -187,7 +189,11 @@ template("run_rustc") {
         "--extern",
         info.crate_name + "=" + rebase_path(rlib, root_build_dir),
       ]
-      deps += [ info.label ]
+      inputs += [ rlib ]
+      deps += [
+        "${info.label}_rustc",
+        info.label,
+      ]
     }
   }
 }