[rygel] build: Don't try to build manpages without xsltproc

[Jens Georg <jensgeorg src gnome org>]

commit fbea809fe24bcf963db5b3fe9079a8c19b262457
Author: Jens Georg <mail jensge org>
Date:   Tue Jun 14 22:02:53 2016 +0200

    build: Don't try to build manpages without xsltproc
    
    Signed-off-by: Jens Georg <mail jensge org>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=767459

 doc/Makefile.am |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 35d763e..c895658 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -1,16 +1,16 @@
 SUBDIRS = reference
 
+EXTRA_DIST = \
+               man/rygel.xml \
+               man/rygel.conf.xml
+
+if HAVE_XSLTPROC
 dist_man1_MANS = \
                rygel.1
 
 dist_man5_MANS = \
                rygel.conf.5
 
-EXTRA_DIST = \
-               man/rygel.xml \
-               man/rygel.conf.xml
-
-if HAVE_XSLTPROC
 %.5 %.1: man/%.xml
        $(AM_V_GEN)$(XSLTPROC) -o $@ -nonet 
http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl >/dev/null 2>&1 $<
 CLEANFILES = \