fix compilation errors introduced by most recent changes

* lisp/ob-exp.el (org-babel-inline-src-block-regexp): Declare this variable.
* lisp/ob.el (defvar): Wrap variable declaration in eval-when-compile.

lisp/ob-exp.el

@@ -118,6 +118,7 @@ none ----- do not display either code or results upon export"
 		(nth 1 info)))
 	(org-babel-exp-do-export info 'block hash)))))
 
+(defvar org-babel-inline-src-block-regexp)
 (defun org-babel-exp-inline-src-blocks (start end)
   "Process inline source blocks between START and END for export.
 See `org-babel-exp-src-block' for export options, currently the

lisp/ob.el

@@ -141,6 +141,7 @@ remove code block execution from the C-c C-c keybinding."
    "\\([^\000]*?\\)[ \t]*#\\+end_src")
   "Regexp used to identify code blocks.")
 
+(eval-when-compile
   (defvar org-babel-inline-src-block-regexp
     (concat
      ;; (1) replacement target (2) lang
@@ -149,7 +150,7 @@ remove code block execution from the C-c C-c keybinding."
      "\\(\\|\\[\\(.*?\\)\\]\\)"
      ;; (5) body
      "{\\([^\f\n\r\v]+?\\)}\\)")
-  "Regexp used to identify inline src-blocks.")
+    "Regexp used to identify inline src-blocks."))
 
 (defun org-babel-get-header (params key &optional others)
   "Select only header argument of type KEY from a list.