Move config.stamp touch to configure script.

Author: graydon

Makefile.in

@@ -439,7 +439,6 @@ Makefile config.mk: config.stamp
 config.stamp: $(S)configure $(S)Makefile.in $(S)src/snapshots.txt
 	@$(call E, cfg: reconfiguring)
 	$(Q)$(S)configure $(CFG_CONFIGURE_ARGS)
-	$(Q)touch $@
 
 
 ######################################################################

configure

@@ -715,5 +715,6 @@ msg
 copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile
 move_if_changed config.tmp config.mk
 rm -f config.tmp
+touch config.stamp
 
 step_msg "complete"