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Fix configure tests to play nice with GCC 4.6

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As of GCC 4.6, specific kernel 2.6.32 header files do not compile
cleanly without warnings. One specific example of this is the
arch/x86/include/asm/percpu.h file. Thus, a few of the configure tests
were getting hung up on this and the '-Wno-unsued-but-set-variables'
compile option had to be introduced.

Signed-off-by: Prakash Surya <surya1@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #459
This commit is contained in:
Prakash Surya 2011-11-29 14:31:20 -08:00 committed by Brian Behlendorf
parent f31b3ebe6e
commit b9c59ec83a
12 changed files with 99 additions and 0 deletions
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3
config/kernel-bdev-block-device-operations.m4
View File

@ -3,6 +3,8 @@ dnl # 2.6.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDEV_BLOCK_DEVICE_OPERATIONS], [
AC_MSG_CHECKING([block device operation prototypes])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -30,4 +32,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BDEV_BLOCK_DEVICE_OPERATIONS], [
],[
AC_MSG_RESULT(struct inode)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-bdev-logical-size.m4
View File

@ -7,6 +7,8 @@ dnl # it explicit.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BDEV_LOGICAL_BLOCK_SIZE], [
AC_MSG_CHECKING([whether bdev_logical_block_size() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -19,4 +21,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BDEV_LOGICAL_BLOCK_SIZE], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-blk-end-request.m4
View File

@ -5,6 +5,8 @@ dnl # changed in 2.6.31 so it may be used by non-GPL modules.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_END_REQUEST], [
AC_MSG_CHECKING([whether blk_end_request() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -34,4 +36,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_END_REQUEST], [
AC_DEFINE(HAVE_BLK_END_REQUEST_GPL_ONLY, 1,
[blk_end_request() is GPL-only])
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-blk-fetch-request.m4
View File

@ -7,6 +7,8 @@ dnl # next available request and removed it from the request queue.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_FETCH_REQUEST], [
AC_MSG_CHECKING([whether blk_fetch_request() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -19,4 +21,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_FETCH_REQUEST], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-blk-requeue-request.m4
View File

@ -6,6 +6,8 @@ dnl # blk_requeue_request() function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_REQUEUE_REQUEST], [
AC_MSG_CHECKING([whether blk_requeue_request() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -19,4 +21,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_REQUEUE_REQUEST], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-blk-rq-bytes.m4
View File

@ -6,6 +6,8 @@ dnl blk_rq_bytes() helper was changed to a static inline which we can use.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_BYTES], [
AC_MSG_CHECKING([whether blk_rq_bytes() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -35,4 +37,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_BYTES], [
AC_DEFINE(HAVE_BLK_RQ_BYTES_GPL_ONLY, 1,
[blk_rq_bytes() is GPL-only])
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-blk-rq-pos.m4
View File

@ -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="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -15,4 +17,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_POS], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-blk-rq-sectors.m4
View File

@ -3,6 +3,8 @@ dnl # 2.6.31 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_SECTORS], [
AC_MSG_CHECKING([whether blk_rq_sectors() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -15,4 +17,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_SECTORS], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-get-disk-ro.m4
View File

@ -3,6 +3,8 @@ dnl # 2.6.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_RO], [
AC_MSG_CHECKING([whether get_disk_ro() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -15,4 +17,5 @@ AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_RO], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-rq-for-each_segment.m4
View File

@ -3,6 +3,8 @@ dnl # 2.6.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_RQ_FOR_EACH_SEGMENT], [
AC_MSG_CHECKING([whether rq_for_each_segment() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -17,4 +19,5 @@ AC_DEFUN([ZFS_AC_KERNEL_RQ_FOR_EACH_SEGMENT], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

3
config/kernel-rq-is_sync.m4
View File

@ -3,6 +3,8 @@ dnl # 2.6.x API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_RQ_IS_SYNC], [
AC_MSG_CHECKING([whether rq_is_sync() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
@ -15,4 +17,5 @@ AC_DEFUN([ZFS_AC_KERNEL_RQ_IS_SYNC], [
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

66
configure vendored
View File

@ -12486,6 +12486,8 @@ fi
{ $as_echo "$as_me:$LINENO: checking block device operation prototypes" >&5
$as_echo_n "checking block device operation prototypes... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -12563,6 +12565,7 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether kernel defines fmode_t" >&5
$as_echo_n "checking whether kernel defines fmode_t... " >&6; }
@ -12869,6 +12872,8 @@ fi
{ $as_echo "$as_me:$LINENO: checking whether bdev_logical_block_size() is available" >&5
$as_echo_n "checking whether bdev_logical_block_size() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -12931,6 +12936,7 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether bio_empty_barrier() is defined" >&5
@ -13471,6 +13477,8 @@ fi
{ $as_echo "$as_me:$LINENO: checking whether blk_end_request() is available" >&5
$as_echo_n "checking whether blk_end_request() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -13601,10 +13609,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_fetch_request() is available" >&5
$as_echo_n "checking whether blk_fetch_request() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -13667,10 +13678,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_requeue_request() is available" >&5
$as_echo_n "checking whether blk_requeue_request() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -13734,10 +13748,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_rq_bytes() is available" >&5
$as_echo_n "checking whether blk_rq_bytes() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -13868,10 +13885,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_rq_pos() is available" >&5
$as_echo_n "checking whether blk_rq_pos() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -13934,10 +13954,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_rq_sectors() is available" >&5
$as_echo_n "checking whether blk_rq_sectors() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -14000,10 +14023,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether get_disk_ro() is available" >&5
$as_echo_n "checking whether get_disk_ro() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -14066,10 +14092,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether rq_is_sync() is available" >&5
$as_echo_n "checking whether rq_is_sync() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -14132,10 +14161,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether rq_for_each_segment() is available" >&5
$as_echo_n "checking whether rq_for_each_segment() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -14200,6 +14232,7 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether super_block uses const struct xattr_hander" >&5
$as_echo_n "checking whether super_block uses const struct xattr_hander... " >&6; }
@ -17223,6 +17256,8 @@ fi
{ $as_echo "$as_me:$LINENO: checking block device operation prototypes" >&5
$as_echo_n "checking block device operation prototypes... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -17300,6 +17335,7 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether kernel defines fmode_t" >&5
$as_echo_n "checking whether kernel defines fmode_t... " >&6; }
@ -17606,6 +17642,8 @@ fi
{ $as_echo "$as_me:$LINENO: checking whether bdev_logical_block_size() is available" >&5
$as_echo_n "checking whether bdev_logical_block_size() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -17668,6 +17706,7 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether bio_empty_barrier() is defined" >&5
@ -18208,6 +18247,8 @@ fi
{ $as_echo "$as_me:$LINENO: checking whether blk_end_request() is available" >&5
$as_echo_n "checking whether blk_end_request() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18338,10 +18379,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_fetch_request() is available" >&5
$as_echo_n "checking whether blk_fetch_request() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18404,10 +18448,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_requeue_request() is available" >&5
$as_echo_n "checking whether blk_requeue_request() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18471,10 +18518,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_rq_bytes() is available" >&5
$as_echo_n "checking whether blk_rq_bytes() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18605,10 +18655,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_rq_pos() is available" >&5
$as_echo_n "checking whether blk_rq_pos() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18671,10 +18724,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether blk_rq_sectors() is available" >&5
$as_echo_n "checking whether blk_rq_sectors() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18737,10 +18793,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether get_disk_ro() is available" >&5
$as_echo_n "checking whether get_disk_ro() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18803,10 +18862,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether rq_is_sync() is available" >&5
$as_echo_n "checking whether rq_is_sync() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18869,10 +18931,13 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether rq_for_each_segment() is available" >&5
$as_echo_n "checking whether rq_for_each_segment() is available... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
cat confdefs.h - <<_ACEOF >conftest.c
@ -18937,6 +19002,7 @@ fi
rm -Rf build
EXTRA_KCFLAGS="$tmp_flags"
{ $as_echo "$as_me:$LINENO: checking whether super_block uses const struct xattr_hander" >&5
$as_echo_n "checking whether super_block uses const struct xattr_hander... " >&6; }