From 6e03b9ce43ade876be30c76bc95e452f3ad500a8 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 10 Nov 2007 15:22:53 +0000
Subject: add config symbols for the kernel version

SVN-Revision: 9520
---
 rules.mk | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'rules.mk')

diff --git a/rules.mk b/rules.mk
index 5c66dfde1a..4a0fa32e35 100644
--- a/rules.mk
+++ b/rules.mk
@@ -138,6 +138,10 @@ $(call shvar,$(1))=$$(call $(1))
 export $(call shvar,$(1))
 endef
 
+define confvar
+$(foreach v,$(1),$(if $($(v)),y,n))
+endef
+
 # file extension
 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
 
-- 
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