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From: Markus Lehtonen <markus.lehtonen@linux.intel.com>
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Date: Fri, 18 Dec 2015 10:39:42 +0200
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Subject: [PATCH 2/5] kernel.bbclass: copy .config instead of moving
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Copy kernel .config from ${S} to ${B}, instead of moving it. This
prevents mangling the source tree, which is undesirable e.g. when
externalsrc is used.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
---
 meta/classes/kernel.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 4ce1611..7de9f20 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -338,7 +338,7 @@ kernel_do_configure() {
 	touch ${B}/.scmversion ${S}/.scmversion
 
 	if [ "${S}" != "${B}" ] && [ -f "${S}/.config" ] && [ ! -f "${B}/.config" ]; then
-		mv "${S}/.config" "${B}/.config"
+		cp "${S}/.config" "${B}/.config"
 	fi
 
 	# Copy defconfig to .config if .config does not exist. This allows
-- 
2.1.4