emacs: switch to emacsGcc

flake.lock

@@ -1,5 +1,20 @@
 {
   "nodes": {
+    "emacs-overlay": {
+      "locked": {
+        "lastModified": 1621740021,
+        "narHash": "sha256-uLu8Zgrkbsq8mnl6LjbcMvItFyAaLH45Iik5qMmb9T0=",
+        "owner": "nix-community",
+        "repo": "emacs-overlay",
+        "rev": "5df3462dda05d8e44669cf374776274e1bc47d0a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "emacs-overlay",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -52,6 +67,7 @@
     },
     "root": {
       "inputs": {
+        "emacs-overlay": "emacs-overlay",
         "home-manager": "home-manager",
         "nixos": "nixos",
         "nur": "nur"

flake.nix

@@ -8,9 +8,10 @@
     home-manager.inputs.nixpkgs.follows = "nixos";
 
     nur.url = "github:nix-community/NUR";
+    emacs-overlay.url = "github:nix-community/emacs-overlay";
   };
 
-  outputs = { self, nixos, home-manager, nur }: {
+  outputs = { self, nixos, home-manager, nur, emacs-overlay }: {
 
     nixosConfigurations = nixos.lib.attrsets.genAttrs [ "arianrhod" "gwydion" ]
       (hostname:
@@ -22,7 +23,7 @@
             (./hosts + "/${hostname}/hardware.nix")
             (./secrets + "/${hostname}.nix")
             home-manager.nixosModules.home-manager
-            { nixpkgs.overlays = [ nur.overlay ]; }
+            { nixpkgs.overlays = [ nur.overlay emacs-overlay.overlay ]; }
             {
               home-manager.useGlobalPkgs = true;
               home-manager.useUserPackages = false;

home/jez/bits/emacs.nix

@@ -55,6 +55,7 @@
   };
 
   programs.emacs.enable = true;
+  programs.emacs.package = pkgs.emacsGcc;
 
   services.gpg-agent.extraConfig = ''
     allow-emacs-pinentry