mirror_zfs/config/kernel-bio-rw-syncio.m4
Brian Behlendorf c9c0d073da Add build system
Add autoconf style build infrastructure to the ZFS tree.  This
includes autogen.sh, configure.ac, m4 macros, some scripts/*,
and makefiles for all the core ZFS components.
2010-08-31 13:41:27 -07:00

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dnl #
dnl # 2.6.29 API change
dnl # BIO_RW_SYNC renamed to BIO_RW_SYNCIO
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_SYNCIO], [
AC_MSG_CHECKING([whether BIO_RW_SYNCIO is defined])
ZFS_LINUX_TRY_COMPILE([
#include <linux/bio.h>
],[
int flags;
flags = BIO_RW_SYNCIO;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_RW_SYNCIO, 1,
[BIO_RW_SYNCIO is defined])
],[
AC_MSG_RESULT(no)
])
])