image: add support for overriding kernel/rootfs images in sysupgrade-tar template

[openwrt/openwrt.git] / include / image.mk

diff --git a/include/image.mk b/include/image.mk
index b5e45ec155ae7d766d7a3984e461a9f5066b554b..8c3c983c068ea5ce19cc3258b93736d4f0ecded9 100644 (file)
--- a/include/image.mk
+++ b/include/image.mk
@@ -29,6 +29,7 @@ override NO_TRACE_MAKE:=$(_SINGLE)$(NO_TRACE_MAKE)
 
 target_params = $(subst +,$(space),$*)
 param_get = $(patsubst $(1)=%,%,$(filter $(1)=%,$(2)))
+param_get_default = $(firstword $(call param_get,$(1),$(2)) $(3))
 param_mangle = $(subst $(space),_,$(strip $(1)))
 param_unmangle = $(subst _,$(space),$(1))