tree 0e232d4f5fa7116fb48ca39ce1dc8dcbdeec0187
parent 04c58f8196b386948abf68128605de3d2db3c6ba
author Sam Ravnborg <sam@ravnborg.org> 1178436010 +0200
committer Sam Ravnborg <sam@ravnborg.org> 1178436010 +0200

kconfig: error out if recursive dependencies are found

Sample:
config FOO
	bool "This is foo"
	depends on BAR

config BAR
	bool "This is bar"
	depends on FOO

This will result in following error message:
error: found recursive dependency: FOO -> BAR -> FOO

And will then exit with exit code equal 1 so make will stop.
Inspired by patch from: Adrian Bunk <bunk@stusta.de>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Roman Zippel <zippel@linux-m68k.org>