linux-kernel - kbuild docs regression

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Date:	Mon, 15 Jun 2009 09:31:00 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jiri Slaby <jirislaby@...il.com>
CC:	samr <sam@...nborg.org>
Subject: kbuild docs regression

make htmldocs
without using "O=dir" now (as of 2.6.30-git8) fails with

  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/basic/docproc
  HOSTCC  scripts/basic/hash
  DOCPROC Documentation/DocBook/alsa-driver-api.xml
  DOCPROC Documentation/DocBook/debugobjects.xml
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
make[1]: *** [Documentation/DocBook/debugobjects.xml] Error 1
make[1]: *** Waiting for unfinished jobs....
  DOCPROC Documentation/DocBook/deviceiobook.xml
  DOCPROC Documentation/DocBook/device-drivers.xml
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory
make[1]: *** [Documentation/DocBook/deviceiobook.xml] Error 1

(+ more)

Using V=1 shows that SRCTREE is set but KBUILD_SRC is not set:

make -f scripts/Makefile.build obj=scripts/basic
make -f scripts/Makefile.build obj=Documentation/DocBook htmldocs
  SRCTREE=/lnx/src/TMP/linux-2.6.30-git8/ /lnx/src/TMP/linux-2.6.30-git8/scripts/basic/docproc doc Documentation/DocBook/alsa-driver-api.tmpl >Documentation/DocBook/alsa-driver-api.xml
exec /scripts/kernel-doc: No such file or directory

and one additional fprintf() in docproc.c shows that kernsrctree is empty:

docproc: srctree='/lnx/src/TMP/linux-2.6.30-git8/', kernsrctree=''

-- 
~Randy
LPC 2009, Sept. 23-25, Portland, Oregon
http://linuxplumbersconf.org/2009/
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