V4L/DVB (13680b): DocBook/media: create links for included sources

If docs are being built in a separate directory, xmlto and xsltproc
can't find included sources.  Make links back to the source directory.

I would much prefer to have xmlto and xsltproc look in the source
directory for included entities but couldn't see how to do that.  This
needs to be solved in some way for 2.6.32, even if this patch isn't the
right way to do it.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index 22bbf7e39018..50075df94962 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -32,10 +32,10 @@ PS_METHOD	= $(prefer-db2x)
 
 ###
 # The targets that may be used.
-PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
+PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs xmldoclinks
 
 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
-xmldocs: $(BOOKS)
+xmldocs: $(BOOKS) xmldoclinks
 sgmldocs: xmldocs
 
 PS := $(patsubst %.xml, %.ps, $(BOOKS))
@@ -55,6 +55,15 @@ mandocs: $(MAN)
 build_images = mkdir -p $(objtree)/Documentation/DocBook/media/ && \
                cp $(srctree)/Documentation/DocBook/dvb/*.png $(srctree)/Documentation/DocBook/v4l/*.gif $(objtree)/Documentation/DocBook/media/
 
+xmldoclinks:
+ifneq ($(objtree),$(srctree))
+        for dep in dvb media-entities.tmpl media-indices.tmpl v4l; do \
+                rm -f $(objtree)/Documentation/DocBook/$$dep \
+                && ln -s $(srctree)/Documentation/DocBook/$$dep $(objtree)/Documentation/DocBook/ \
+                || exit; \
+        done
+endif
+
 installmandocs: mandocs
         mkdir -p /usr/local/man/man9/
         install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/