kbuild: fix interaction of CONFIG_IKCONFIG and KCONFIG_CONFIG

If you try to build a kernel with KCONFIG_CONFIG set (to a value
not equal to .config) and that config sets CONFIG_IKCONFIG then the
build will fail with:

make[1]: *** No rule to make target `.config', needed by \
`kernel/config_data.gz'.  Stop.

because the kernel/Makefile contains a direct reference to .config.

This issue has been present since the introduction of KCONFIG_CONFIG
in 14cdd3c402.

Signed-off-by: Ben Gardiner <[email protected]>
CC: Roman Zippel <[email protected]>
CC: Michal Marek <[email protected]>
Reviewed-by: Michal Marek <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
This commit is contained in:
Ben Gardiner 2010-12-14 11:39:44 -05:00 • committed by Michal Marek
commit 41263fc671
2 changed files with 2 additions and 1 deletions

View file

@ -224,6 +224,7 @@ ifeq ($(ARCH),m68knommu)
endif
KCONFIG_CONFIG ?= .config
export KCONFIG_CONFIG
# SHELL used by kbuild
CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \