freebsd-nq/config/kernel-kobj-name-len.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 # 2.6.27 API change,
dnl # kobject KOBJ_NAME_LEN static limit removed. All users of this
dnl # constant were removed prior to 2.6.27, but to be on the safe
dnl # side this check ensures the constant is undefined.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_KOBJ_NAME_LEN], [
AC_MSG_CHECKING([whether kernel defines KOBJ_NAME_LEN])
ZFS_LINUX_TRY_COMPILE([
#include <linux/kobject.h>
],[
int val;
val = KOBJ_NAME_LEN;
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_KOBJ_NAME_LEN, 1,
[kernel defines KOBJ_NAME_LEN])
],[
AC_MSG_RESULT([no])
])
])