Fresh SBCL is not compatible with not-fresh iolib

pkgs/development/lisp-modules/quicklisp-to-nix-overrides.nix

@@ -35,7 +35,7 @@ in
     };
   };
   hunchentoot = addNativeLibs [pkgs.openssl];
-  iolib = x: {
+  iolib = x: rec {
     propagatedBuildInputs = (x.propagatedBuildInputs or [])
      ++ (with pkgs; [libfixposix gcc])
      ++ (with qlnp; [
@@ -45,6 +45,14 @@ in
     testSystems = ["iolib" "iolib/syscalls" "iolib/multiplex" "iolib/streams"
       "iolib/zstreams" "iolib/sockets" "iolib/trivial-sockets"
       "iolib/pathnames" "iolib/os"];
+
+    version = "0.8.3";
+    src = pkgs.fetchFromGitHub {
+      owner = "sionescu";
+      repo = "iolib";
+      rev = "v${version}";
+      sha256 = "0pa86bf3jrysnmhasbc0lm6cid9xzril4jsg02g3gziav1xw5x2m";
+    };
   };
   cl-unicode = addDeps (with qlnp; [cl-ppcre flexi-streams]);
   clack =  addDeps (with qlnp;[lack bordeaux-threads prove]);