nano: use correct step override method

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/nano/nano.mk

@@ -10,15 +10,12 @@ NANO_MAKE_ENV = CURSES_LIB="-lncurses"
 NANO_CONF_OPT = --without-slang --enable-tiny
 NANO_DEPENDENCIES = ncurses
 
-$(eval $(call AUTOTARGETS,package,nano))
-
-$(NANO_TARGET_INSTALL_TARGET):
-	$(call MESSAGE,"Installing to target")
-	$(INSTALL) -m 0755 $(NANO_DIR)/src/nano \
-		$(TARGET_DIR)/usr/bin/nano
-	touch $@
+define NANO_INSTALL_TARGET_CMDS
+	$(INSTALL) -m 0755 $(@D)/src/nano $(TARGET_DIR)/usr/bin/nano
+endef
 
-$(NANO_TARGET_UNINSTALL):
-	$(call MESSAGE,"Uninstalling")
+define NANO_UNINSTALL_TARGET_CMDS
 	rm -f $(TARGET_DIR)/usr/bin/nano
-	rm -f $(NANO_TARGET_INSTALL_TARGET) $(NANO_HOOK_POST_INSTALL)
+endef
+
+$(eval $(call AUTOTARGETS,package,nano))