tree 6fd9c8e6dfc4193849f078f22dd827180e79c139
parent 2af238e455ef5fd31c2f7a06c2db3f13d843b9bf
author Sam Ravnborg <sam@ravnborg.org> 1230554752 +0100
committer Sam Ravnborg <sam@ravnborg.org> 1230925405 +0100

kbuild: document environment variables

Add kbuild.txt to Documentation/kbuild
More stuff can be added later - at least we have
som of the varous environment variables documented now.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>