From: "Mike Frysinger" <vapier.adi@gmail.com>

The KERNELDOC and DOCPROC variables are relative to the
$(srctree)/$(objtree) and expect to be run only from there ...  attached
patch adds proper srctree/objtree prefixes to both variables.

Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 Documentation/DocBook/Makefile |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff -puN Documentation/DocBook/Makefile~respect-srctree-objtree-in-documentation-docbook-makefile Documentation/DocBook/Makefile
--- a/Documentation/DocBook/Makefile~respect-srctree-objtree-in-documentation-docbook-makefile
+++ a/Documentation/DocBook/Makefile
@@ -53,8 +53,8 @@ installmandocs: mandocs
 
 ###
 #External programs used
-KERNELDOC = scripts/kernel-doc
-DOCPROC   = scripts/basic/docproc
+KERNELDOC = $(srctree)/scripts/kernel-doc
+DOCPROC   = $(objtree)/scripts/basic/docproc
 
 XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
 #XMLTOFLAGS += --skip-validation
_