Document values of window-system and deprecate its use as predicate.

 src/frame.c (Fframep, Fwindow_system): Deprecate use as a predicate.
 Document all values.
 src/dispnew.c (syms_of_display) <initial-window-system, window-system>:
 Deprecate use as a boolean flag.  Document all values.
 src/display.texi (Window Systems): Deprecate use of window-system as
 a predicate.

1 files changed, 5 insertions, 0 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 2aca9fce5bf..ccbbe1b9c81 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,8 @@
+2010-10-22  Eli Zaretskii  <eliz@gnu.org>
+
+        * display.texi (Window Systems): Deprecate use of window-system as
+        a predicate.
+
 2010-09-05  Alexander Klimov  <alserkli@inbox.ru>  (tiny change)
 
         * files.texi (Directory Names): Use \` rather than ^.