add which to shell.nix to build with --pure

1 files changed, 1 insertions, 0 deletions

diff --git a/shell.nix b/shell.nix
index 21301b9d7..040c7696e 100644
--- a/shell.nix
+++ b/shell.nix
@@ -3,6 +3,7 @@ pkgs.mkShell {
   name = "odin";
   nativeBuildInputs = with pkgs; [
     git
+    which
     clang_17
     llvmPackages_17.llvm
     llvmPackages_17.bintools