[PATCH 2/2] kbuild: override host system KCONFIG_DEFCONFIG_LIST

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

KCONFIG_DEFCONFIG_LIST contains some default locations where a Kernel
config can be found (e.g. /boot/config-$(uname -r)).

Currently, if a config is found in these default locations, it's used as
initial config for barebox as well, which doesn't work well, because
barebox architecture symbols defer quite a bit from the Linux ones.

Let's therefore set the make variable to an empty string to avoid this
issue.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 760fd7381ece..5433927ed197 100644
--- a/Makefile
+++ b/Makefile
@@ -602,10 +602,10 @@ include $(srctree)/arch/$(SRCARCH)/Makefile
 export KBUILD_DEFCONFIG CC_VERSION_TEXT
 
 config: outputmakefile scripts_basic FORCE
-	$(Q)$(MAKE) $(build)=scripts/kconfig $@
+	$(Q)$(MAKE) $(build)=scripts/kconfig KCONFIG_DEFCONFIG_LIST= $@
 
 %config: outputmakefile scripts_basic FORCE
-	$(Q)$(MAKE) $(build)=scripts/kconfig $@
+	$(Q)$(MAKE) $(build)=scripts/kconfig KCONFIG_DEFCONFIG_LIST= $@
 
 else #!config-build
 # ===========================================================================
-- 
2.39.5