started working on flake for gcc development

gcc-devel/flake.nix

@@ -0,0 +1,25 @@
+{
+  description = "A very basic flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-21.05"
+  }
+
+  outputs = { self, nixpkgs }: {
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs {
+        inherit system;
+      };
+    in  {
+      devShell = pkgs.mkShell rec (
+        name = "gcc-devel";
+        packages = with pkgs; [
+          libgcc
+          gdb
+          gef
+        ];
+      )
+    };
+  };
+}