From: Ben Hutchings <ben@decadent.org.uk>
Subject: Make mkcompile_h accept an alternate timestamp string
Date: Tue, 12 May 2015 19:29:22 +0100
Forwarded: not-needed

We want to include the Debian version in the utsname::version string
instead of a full timestamp string.  However, we still need to provide
a standard timestamp string for gen_initramfs_list.sh to make the
kernel image reproducible.

Make mkcompile_h use $KBUILD_BUILD_VERSION_TIMESTAMP in preference to
$KBUILD_BUILD_TIMESTAMP.

Index: linux/scripts/mkcompile_h
===================================================================
--- linux.orig/scripts/mkcompile_h
+++ linux/scripts/mkcompile_h
@@ -33,10 +33,14 @@ else
 	VERSION=$KBUILD_BUILD_VERSION
 fi
 
-if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
-	TIMESTAMP=`date`
+if [ -z "$KBUILD_BUILD_VERSION_TIMESTAMP" ]; then
+	if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
+		TIMESTAMP=`date`
+	else
+		TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
+	fi
 else
-	TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
+	TIMESTAMP=$KBUILD_BUILD_VERSION_TIMESTAMP
 fi
 if test -z "$KBUILD_BUILD_USER"; then
 	LINUX_COMPILE_BY=$(whoami | sed 's/\\/\\\\/')