I add cl-lib in popwin.el, (require 'cl-lib), charge all defun* to defun, it work perfect in shell emacs(emacs-version=25.2.2)
but when I open gui emacs(emacs-version=27.1), it load warning,
remind me in buffer "error: Malformed arglist: (window edges &optional (hfactor 1) (vfactor 1))",
how could I fix it?