app-emacs/emacs-w3m can be installed with xemacs without the mule extension/use flag which returns the following error when M-x w3m is invoked: (1) (error/warning) Error in process sentinel: (void-function coding-system-p) Reproducible: Always Steps to Reproduce: 1. set -mule in USE variable in /etc/make.conf 2. emerge xemacs; emerge app-emacs/w3m 3. launch xemacs; M-x w3m Actual Results: (1) (error/warning) Error in process sentinel: (void-function coding-system-p) Expected Results: browse to page that is in variable w3m-home-page
The problem is you have XEmacs and you try to use app-emacs/emacs-w3m...that won't work, as the app-emacs category is for GNU Emacs. Please try app-xemacs/w3, which should do as you wish, and report back if that solved your problem. Thanks for bug reporting anyway.