From acafc19c4a1343e52998874f52f6b05b3a511ddc Mon Sep 17 00:00:00 2001
From: Thorsten Alteholz <openafs@alteholz.de>
Date: Mon, 25 Feb 2013 15:21:05 -0800
Subject: [PATCH] Fix DKMS builds for amd64 kernels on i386 architecture

Parse the kernel version in the DKMS configuration to get the
architecture and kernel version and use that to form the AFS sysname
on i386 and amd64.  This fixes DKMS builds of the module for amd64
kernels on the i386 architecture, and provides a framework that can
be used for similar cases in the future.
---
 debian/openafs-modules-dkms.dkms | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/debian/openafs-modules-dkms.dkms b/debian/openafs-modules-dkms.dkms
index e99876e6f..981df35b3 100644
--- a/debian/openafs-modules-dkms.dkms
+++ b/debian/openafs-modules-dkms.dkms
@@ -1,5 +1,24 @@
 # DKMS configuration for the OpenAFS kernel module.  -*- sh -*-
 
+# look for arch in kernel version, this looks
+# like: 3.2.0-4-686-pae or 3.2.0-4-amd64
+ARCH=`echo $kernelver|awk -F"-" '{printf("%s",$3)}'`
+case "$ARCH" in
+  amd64) AFS_SYSNAME="amd64_linuxXX" ;;
+  486 | 686) AFS_SYSNAME="i386_linuxXX" ;;
+  *) AFS_SYSNAME="NOTHING" ;;
+esac
+
+# the kernel version should be part of the SYSNAME
+case "$kernelver" in
+  2.2.*) AFS_SYSKVERS=22 ;;
+  2.4.*) AFS_SYSKVERS=24 ;;
+  2.6.* | 3.*) AFS_SYSKVERS=26 ;;
+  *) AFS_SYSKVERS=00;; 
+esac
+_AFS_SYSNAME=`echo $AFS_SYSNAME|sed s/XX\$/$AFS_SYSKVERS/`
+AFS_SYSNAME="$_AFS_SYSNAME"
+
 # The version is replaced at build time by dh_dkms invoked in debian/rules.
 PACKAGE_NAME="openafs"
 PACKAGE_VERSION="#MODULE_VERSION#"
@@ -8,9 +27,20 @@ BUILT_MODULE_NAME[0]="$PACKAGE_NAME"
 DEST_MODULE_LOCATION[0]="/updates/dkms/"
 AUTOINSTALL=yes
 
-MAKE[0]="(./configure --disable-linux-syscall-probing \
+if [ "${AFS_SYSNAME}" == "NOTHING" ]; then
+  # we have no special SYSNAME so let configure make the magic
+  MAKE[0]="(./configure --disable-linux-syscall-probing \
+                      --with-linux-kernel-packaging \
+                      --with-linux-kernel-headers=${kernel_source_dir} \
+          && make \
+          && mv src/libafs/MODLOAD-*/openafs.ko .)"
+else
+  # we already know who we are so go on
+  MAKE[0]="(./configure --disable-linux-syscall-probing \
+                      --with-afs-sysname=${AFS_SYSNAME} \
                       --with-linux-kernel-packaging \
                       --with-linux-kernel-headers=${kernel_source_dir} \
           && make \
           && mv src/libafs/MODLOAD-*/openafs.ko .)"
+fi
 CLEAN="rm -f openafs.ko && make clean"
-- 
2.39.5