1 files changed, 22 insertions, 0 deletions
diff --git a/pkgs/development/tools/analysis/rr/unstable.nix b/pkgs/development/tools/analysis/rr/unstable.nix
new file mode 100644
index 00000000000..35098c1bcfc
--- /dev/null
+++ b/pkgs/development/tools/analysis/rr/unstable.nix
@@ -0,0 +1,22 @@
+# This is a temporary copy of the default.nix in this folder, with the version
+# updated to the current tip of rr's master branch. This exists because rr has
+# not had a release in a long time. Upstream has stated that it should be fine
+# to use master. This file, and its attribute in all-packages, can be removed
+# once rr makes a release.
+
+{ callPackage, fetchFromGitHub }:
+
+let
+  rr = callPackage ./. {};
+in
+
+  rr.overrideAttrs (old: {
+    version = "unstable-2021-07-06";
+
+    src = fetchFromGitHub {
+      owner = "mozilla";
+      repo = "rr";
+      rev = "0fc21a8d654dabc7fb1991d76343824cb7951ea0";
+      sha256 = "0s851rflxmvxcfw97zmplcwzhv86xmd3my78pi4c7gkj18d621i5";
+    };
+  })