better system-type handling

init.el

@@ -39,7 +39,7 @@
 
 ;; On OS X Emacs doesn't use the shell PATH if it's not started from
 ;; the shell. If you're using homebrew modifying the PATH is essential.
-(if (string= system-type "darwin")
+(if (eq system-type 'darwin)
     (push "/usr/local/bin" exec-path))
 
 (defvar prelude-dir (file-name-directory load-file-name)

modules/prelude-common-lisp.el

@@ -78,7 +78,7 @@ Common Lisp."
         (sbcl ("sbcl" "--noinform") :coding-system utf-8-unix)))
 
 ;; select the default value from slime-lisp-implementations
-(if (string= system-type "darwin")
+(if (eq system-type 'darwin)
     ;; default to Clozure CL on OS X
     (setq slime-default-lisp 'ccl)
   ;; default to SBCL on Linux and Windows

modules/prelude-editor.el

@@ -39,7 +39,7 @@
 
 ;; Emacs users obviously have little need for Command and Option keys,
 ;; but they do need Meta and Super
-(when (string= system-type "darwin")
+(when (eq system-type 'darwin)
   (setq mac-command-modifier 'super)
   (setq mac-option-modifier 'meta))