vimPlugins.{avante-nvim,blink-cmp, blink-pairs, codesnap-nvim, fff-nvim}: fix darwin build (#464350)

pkgs/applications/editors/vim/plugins/non-generated/avante-nvim/default.nix

@@ -37,6 +37,9 @@ let
 
     buildFeatures = [ "luajit" ];
 
+    # Allow undefined symbols on Darwin - they will be provided by Neovim's LuaJIT runtime
+    env.RUSTFLAGS = lib.optionalString stdenv.hostPlatform.isDarwin "-C link-arg=-undefined -C link-arg=dynamic_lookup";
+
     checkFlags = [
       # Disabled because they access the network.
       "--skip=test_hf"

pkgs/applications/editors/vim/plugins/non-generated/blink-cmp/default.nix

@@ -26,6 +26,8 @@ let
     env = {
       # TODO: remove this if plugin stops using nightly rust
       RUSTC_BOOTSTRAP = true;
+      # Allow undefined symbols on Darwin - they will be provided by Neovim's LuaJIT runtime
+      RUSTFLAGS = lib.optionalString stdenv.hostPlatform.isDarwin "-C link-arg=-undefined -C link-arg=dynamic_lookup";
     };
   };
 in

pkgs/applications/editors/vim/plugins/non-generated/blink-pairs/default.nix

@@ -23,7 +23,12 @@ let
 
     cargoHash = "sha256-Cn9zRsQkBwaKbBD/JEpFMBOF6CBZTDx7fQa6Aoic4YU=";
 
-    env.RUSTC_BOOTSTRAP = 1;
+    env = {
+      RUSTC_BOOTSTRAP = 1;
+
+      # Allow undefined symbols on Darwin - they will be provided by Neovim's LuaJIT runtime
+      RUSTFLAGS = lib.optionalString stdenv.hostPlatform.isDarwin "-C link-arg=-undefined -C link-arg=dynamic_lookup";
+    };
 
     # NOTE: Disabled upstream too
     doCheck = false;

pkgs/applications/editors/vim/plugins/non-generated/codesnap-nvim/default.nix

@@ -29,6 +29,9 @@ let
       rustPlatform.bindgenHook
     ];
 
+    # Allow undefined symbols on Darwin - they will be provided by Neovim's LuaJIT runtime
+    env.RUSTFLAGS = lib.optionalString stdenv.hostPlatform.isDarwin "-C link-arg=-undefined -C link-arg=dynamic_lookup";
+
     buildInputs = [
       libuv.dev
     ];

pkgs/applications/editors/vim/plugins/non-generated/fff-nvim/default.nix

@@ -2,11 +2,12 @@
   lib,
   fetchFromGitHub,
   rustPlatform,
-  pkg-config,
-  perl,
-  openssl,
-  vimUtils,
   nix-update-script,
+  openssl,
+  perl,
+  pkg-config,
+  stdenv,
+  vimUtils,
 }:
 let
   version = "65aeacf-unstable-2025-11-03";
@@ -35,6 +36,9 @@ let
       RUSTC_BOOTSTRAP = 1; # We need rust unstable features
 
       OPENSSL_NO_VENDOR = true;
+
+      # Allow undefined symbols on Darwin - they will be provided by Neovim's LuaJIT runtime
+      RUSTFLAGS = lib.optionalString stdenv.hostPlatform.isDarwin "-C link-arg=-undefined -C link-arg=dynamic_lookup";
     };
   };
 in