(define-module (my-guix-packages)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix utils)
  #:use-module (gnu packages mail))

(define-public my-mutt
  (package
    (inherit mutt)
    (name "my-mutt")
    (arguments
     (substitute-keyword-arguments (package-arguments mutt)
       ((#:configure-flags cf)
        `(cons "--enable-hcache" ,cf))))
    (synopsis (string-append (package-synopsis mutt)
                             " (configured with --enable-hcache)"))))