$(CPP) $(c_flags) $2 -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && { \
sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp | \
while read line; do \
- if ! grep -q "$${line%=*}=" include/config/auto.conf; then \
+ if [ -n "${KCONFIG_IGNORE_DUPLICATES}" ] || \
+ ! grep -q "$${line%=*}=" include/config/auto.conf; then \
echo "$$line"; \
fi \
done > $@; \