(use-modules (guix) (gnu) (srfi srfi-1)
	     (guix packages)
	     (guix download))

(let ((emacs (car (find-packages-by-name "emacs")))
      (gtk+ (car (find-packages-by-name "gtk+"))))
  (package
   (inherit emacs)
   (name "emacs-gtk3")
   (version "24.3")
   (source (origin
	    (method url-fetch)
	    (uri "mirror://gnu/emacs/emacs-24.3.tar.xz")
	    (sha256
	     (base32
	      "1385qzs3bsa52s5rcncbrkxlydkw0ajzrvfxgv8rws5fx512kakh"))
	    (patches (list "/home/beffa/src/guix/git/guix/gnu/packages/patches/emacs-configure-sh.patch"))))
    (arguments
     '(#:configure-flags
       (list (string-append "--with-crt-dir=" (assoc-ref %build-inputs "libc")
                            "/lib")
	     "--with-x=yes"
	     "--with-x-toolkit=gtk3")
       #:phases (alist-cons-before
                 'configure 'fix-/bin/pwd
                 (lambda _
                   ;; Use `pwd', not `/bin/pwd'.
                   (substitute* (find-files "." "^Makefile\\.in$")
                     (("/bin/pwd")
                      "pwd")))
                 %standard-phases)))
   (inputs 
    (alist-cons "gtk+" (list gtk+)
		(alist-delete "gtk+" (package-inputs emacs))))))