X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=config%2Fkernel-blk-rq-pos.m4;h=efa595f89b46dd33d8649811758cefabb6e651d7;hb=6e1b9d03342309358e58e99ac41e2e8e599d31ba;hp=aaa464665c71bc8972d714b1344003b8c70d648c;hpb=c9c0d073da561bcbefbdf09c87fc75b227415619;p=zfs.git

diff --git a/config/kernel-blk-rq-pos.m4 b/config/kernel-blk-rq-pos.m4
index aaa4646..efa595f 100644
--- a/config/kernel-blk-rq-pos.m4
+++ b/config/kernel-blk-rq-pos.m4
@@ -3,6 +3,8 @@ dnl # 2.6.31 API change
 dnl #
 AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_POS], [
 	AC_MSG_CHECKING([whether blk_rq_pos() is available])
+	tmp_flags="$EXTRA_KCFLAGS"
+	EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
 	ZFS_LINUX_TRY_COMPILE([
 		#include <linux/blkdev.h>
 	],[
@@ -15,4 +17,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_POS], [
 	],[
 		AC_MSG_RESULT(no)
 	])
+	EXTRA_KCFLAGS="$tmp_flags"
 ])