dot/gnus.el: Use fancy tree drawing if using window-system output.

There's no terminal coding system for window systems, because there's
no terminal; but Emacs can still show Unicode characters, so we should
use them.

diff --git a/dot/gnus.el b/dot/gnus.el
index d3ca4f6..f7b6560 100644 (file)
--- a/dot/gnus.el
+++ b/dot/gnus.el
@@ -41,7 +41,8 @@
       gnus-sum-thread-tree-false-root ">"
       gnus-sum-thread-tree-single-indent "="
       gnus-sum-thread-tree-indent "  ")
-(if (eq (coding-system-get (terminal-coding-system) 'mime-charset) 'utf-8)
+(if (memq (coding-system-get (terminal-coding-system) 'mime-charset)
+         '(nil utf-8))
     (setq gnus-sum-thread-tree-leaf-with-other "├─>"
          gnus-sum-thread-tree-vertical        "│ "
          gnus-sum-thread-tree-single-leaf     "╰─>")