[mutter] docs: Allow building without wayland

[Florian Müllner <fmuellner src gnome org>]

commit b63291069db2d999ca9bc222509debfe00316354
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Sep 15 19:32:49 2014 +0200

    docs: Allow building without wayland

 doc/reference/Makefile.am |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/doc/reference/Makefile.am b/doc/reference/Makefile.am
index 37b6634..bf3a588 100644
--- a/doc/reference/Makefile.am
+++ b/doc/reference/Makefile.am
@@ -111,6 +111,13 @@ IGNORE_HFILES= \
        xprops.h \
        $(NULL)
 
+if !HAVE_WAYLAND
+IGNORE_HFILES += \
+       meta-surface-actor-wayland.h    \
+       wayland                         \
+       $(NULL)
+endif
+
 MKDB_OPTIONS+=--ignore-files="$(IGNORE_HFILES)"
 
 # Images to copy into HTML directory.