--- a/emacs.rst	Wed Feb 16 11:33:01 2011 +0200
+++ b/emacs.rst	Wed Feb 16 11:39:38 2011 +0200
@@ -156,6 +156,7 @@
   emacs-minor-version
   window-system             - 'nil' if in terminal, 'w32' if native Windows build, 'x' if under X Window
   window-system-version     - for windows only
+  window-size-fixed
   operating-system-release  - release of the operating system Emacs is running on
   system-configuration      - like configuration triplet: cpu-manufacturer-os
   system-configuration-options
@@ -165,7 +166,8 @@
                               'gnu' (GNU Hurd), 'gnu/linux', 'gnu/kfreebsd' (FreeBSD),
                               'darwin' (GNU-Darwin, Mac OS X), 'ms-dos', 'windows-nt', 'cygwin'
   system-uses-terminfo
-  window-size-fixed
+  dynamic-library-alist or deprecated image-library-alist
+                            - alist of image types vs external libraries needed to display them
 
 and check functions: