DocBook: use DOCBOOKS="" to ignore DocBooks instead of IGNORE_DOCBOOKS=1

Instead of a separate ignore flag, use the obvious DOCBOOKS="" to ignore
all DocBook files. This is also in line with the Sphinx build being
ignored if a non-empty DOCBOOKS make variable is specified on the make
command line.

This replaces the IGNORE_DOCBOOKS introduced in

commit 547218864a
Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Date:   Sat Jul 9 13:12:45 2016 -0300

    doc-rst: add an option to ignore DocBooks when generating docs

and aligns with

commit 6387872c86
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Fri Jul 1 15:24:44 2016 +0300

    Documentation/sphinx: skip build if user requested specific DOCBOOKS

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jani Nikula 2016-08-04 11:48:26 +03:00 committed by Jonathan Corbet
parent 09c3bcce7c
commit bdf107d87e

View File

@ -6,8 +6,6 @@
# To add a new book the only step required is to add the book to the
# list of DOCBOOKS.
ifeq ($(IGNORE_DOCBOOKS),)
DOCBOOKS := z8530book.xml device-drivers.xml \
kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
writing_usb_driver.xml networking.xml \
@ -19,6 +17,14 @@ DOCBOOKS := z8530book.xml device-drivers.xml \
tracepoint.xml gpu.xml media_api.xml w1.xml \
writing_musb_glue_layer.xml crypto-API.xml iio.xml
ifeq ($(DOCBOOKS),)
# Skip DocBook build if the user explicitly requested no DOCBOOKS.
.DEFAULT:
@echo " SKIP DocBook $@ target (DOCBOOKS=\"\" specified)."
else
include Documentation/DocBook/media/Makefile
###
@ -217,19 +223,7 @@ silent_gen_xml = :
-e "s/>/\\&gt;/g"; \
echo "</programlisting>") > $@
else
# Needed, due to cleanmediadocs
include Documentation/DocBook/media/Makefile
htmldocs:
pdfdocs:
psdocs:
xmldocs:
installmandocs:
endif # IGNORE_DOCBOOKS
endif # DOCBOOKS=""
###
# Help targets as used by the top-level makefile
@ -246,7 +240,7 @@ dochelp:
@echo ' make DOCBOOKS="s1.xml s2.xml" [target] Generate only docs s1.xml s2.xml'
@echo ' valid values for DOCBOOKS are: $(DOCBOOKS)'
@echo
@echo " make IGNORE_DOCBOOKS=1 [target] Don't generate docs from Docbook"
@echo " make DOCBOOKS=\"\" [target] Don't generate docs from Docbook"
@echo ' This is useful to generate only the ReST docs (Sphinx)'