From 43440b4f1b5b7975718a6b5e804293d6e248e659 Mon Sep 17 00:00:00 2001
From: ejka <ejka@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Tue, 20 Nov 2007 13:21:01 +0000
Subject: add external kernel tree support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9584 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 include/kernel-defaults.mk | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'include/kernel-defaults.mk')

diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk
index 69ff8fa6f..1e0b28b2e 100644
--- a/include/kernel-defaults.mk
+++ b/include/kernel-defaults.mk
@@ -32,11 +32,21 @@ endif
 
 # defined in quilt.mk
 Kernel/Patch:=$(Kernel/Patch/Default)
+ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
 define Kernel/Prepare/Default
 	bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
 	$(Kernel/Patch)
 	$(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
 endef
+else
+define Kernel/Prepare/Default
+	mkdir -p $(KERNEL_BUILD_DIR)
+	if [ -d $(LINUX_DIR) ]; then \
+		rmdir $(LINUX_DIR); \
+	fi
+	ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR)
+endef
+endif
 
 define Kernel/Configure/2.4
 	$(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
-- 
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