doc: Only generate Wayland documentation if xsltproc was found

Instead of failing to generate documentation because xsltproc doesn't
exist, don't try to generate at all.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>

diff --git a/doc/Wayland/Makefile.am b/doc/Wayland/Makefile.am
index 53ad6ee..1d27b1a 100644 (file)
--- a/doc/Wayland/Makefile.am
+++ b/doc/Wayland/Makefile.am
@@ -14,6 +14,7 @@ publican_sources = \
        $(srcdir)/en_US/images/x-architecture.png
 
 if HAVE_PUBLICAN
+if HAVE_XSLTPROC
 noinst_DATA = Wayland $(publican_targets)
 pubdir = $(docdir)/Wayland/en-US
 
@@ -96,5 +97,6 @@ uninstall-local:
        fi;
 
 endif
+endif
 
 EXTRA_DIST = $(publican_sources) publican.cfg protocol-to-docbook.xsl protocol-interfaces-to-docbook.xsl doxygen-to-publican.xsl