fish: add gcc-native command

home-manager/progs/fish.nix

@@ -47,6 +47,8 @@ in
       pbpaste = "${pkgs.wl-clipboard}/bin/wl-paste";
 
       nix-cleanup = "doas nix-collect-garbage --delete-older-than 1d && doas nix-store --optimise && doas nix-store --gc";
+
+      gcc-native = "${pkgs.gcc}/bin/gcc -Q --help=target -mtune=native -march=native | ${pkgs.gnugrep}/bin/grep -E '(mtune|march)=' | ${pkgs.gnugrep}/bin/grep -v 'Known valid arguments' | ${pkgs.gnused}/bin/sed -E \"s/[[:space:]]+//g\"";
     };
 
     shellInit = ''

home-manager/progs/gpt4all/gpt4all.nix

@@ -50,7 +50,7 @@ let
       in
       {
         NIX_CFLAGS_COMPILE = "${oldflags} ${newflags}";
-        stdenv = pkgs.clangStdenv;
+        stdenv = pkgs.clang18Stdenv;
       }
     );
 
@@ -70,7 +70,7 @@ let
           owner = "nomic-ai";
           repo = "gpt4all";
           rev = "HEAD";
-          sha256 = "vzAfWLyljR0Cg6pCeeyQJZNeOJh5xOILlbJnwDWu62o=";
+          sha256 = "7pUgCZJC5goMvpUNBQ3ssmwdWt3TnaQQ7RF98VdYzM8=";
         };
 
         patches = old.patches ++ [
@@ -83,7 +83,6 @@ let
         "-Ofast"
         "-march=native"
         "-mtune=native"
-        "-fno-protect-parens"
         "-fno-finite-math-only" # https://github.com/ggerganov/llama.cpp/pull/7154#issuecomment-2143844461
       ]
   );