* lisp/textmodes/flyspell.el (flyspell-incorrect, flyspell-duplicate):

* lisp/progmodes/flymake.el (flymake-errline, flymake-warnline):
Use underline style wave on terminals that support it. 

* src/xfaces.c (tty_supports_face_attributes_p): Return 0 for the case
of (supports :underline (:style wave)).

Fixes: debbugs:13000

1 files changed, 12 insertions, 2 deletions

diff --git a/lisp/textmodes/flyspell.el b/lisp/textmodes/flyspell.el
index 7e692960dbc..fe2f808c594 100644
--- a/lisp/textmodes/flyspell.el
+++ b/lisp/textmodes/flyspell.el
@@ -445,13 +445,23 @@ like <img alt=\"Some thing.\">."
 ;;*---------------------------------------------------------------------*/
 ;;*    Highlighting                                                     */
 ;;*---------------------------------------------------------------------*/
-(defface flyspell-incorrect '((t :underline t :inherit error))
+(defface flyspell-incorrect
+  '((((supports :underline (:style wave)))
+     :underline (:style wave :color "Red1"))
+    (t
+     :underline t :inherit error))
   "Flyspell face for misspelled words."
+  :version "24.4"
   :group 'flyspell)
 
-(defface flyspell-duplicate '((t :underline t :inherit warning))
+(defface flyspell-duplicate
+  '((((supports :underline (:style wave)))
+     :underline (:style wave :color "DarkOrange"))
+    (t
+     :underline t :inherit warning))
   "Flyspell face for words that appear twice in a row.
 See also `flyspell-duplicate-distance'."
+  :version "24.4"
   :group 'flyspell)
 
 (defvar flyspell-overlay nil)