--- kernel-build.mk     (revision 6335)
+++ kernel-build.mk     (working copy)
@@ -219,6 +219,7 @@
        getvar "$(call shvar,Profile/$(1)/Description)"; \
        echo "@@"; \
        echo;
+       $(SCRIPT_DIR)/config.pl '+' $(LINUX_DIR)/.config $(PLATFORM_DIR)/config-$(1) > $(KERNEL_BUILD_DIR)/.config
 endef