build: enable using $(CONFIG_FOO) on the rhs of config files

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-04-03 17:53:21 +02:00
parent 9196dd411d
commit bb585a784e

View File

@ -76,7 +76,10 @@ config-all-devices.mak:
$(call quiet-command,echo '# no devices' > $@," GEN $@")
else
config-all-devices.mak: $(SUBDIR_DEVICES_MAK)
$(call quiet-command,cat $(SUBDIR_DEVICES_MAK) | grep =y | sort -u > $@," GEN $@")
$(call quiet-command, sed -n \
's|^\([^=]*\)=\(.*\)$$|\1:=$$(findstring y,$$(\1)\2)|p' \
$(SUBDIR_DEVICES_MAK) | sort -u > $@, \
" GEN $@")
endif
-include $(SUBDIR_DEVICES_MAK_DEP)