Add SBCL configuration

sbcl/.sbclrc

@@ -0,0 +1,18 @@
+;; -*- mode: lisp; -*-
+
+;;; The following lines added by ql:add-to-init-file:
+#-quicklisp
+(let ((quicklisp-init (merge-pathnames ".local/share/quicklisp/setup.lisp"
+                                       (user-homedir-pathname))))
+  (when (probe-file quicklisp-init)
+    (load quicklisp-init)))
+
+;;; Enable linedit, a readline-like module for SBCL. Install through
+;;; (ql:quickload "linedit").
+(if (member "--no-linedit" sb-ext:*posix-argv* :test 'equal)
+    (setf sb-ext:*posix-argv*
+          (remove "--no-linedit" sb-ext:*posix-argv* :test 'equal))
+    (when (interactive-stream-p *terminal-io*)
+      (require :sb-aclrepl)
+      (require :linedit)
+      (funcall (intern "INSTALL-REPL" :linedit) :wrap-current t)))