/usr/src/zfs-0.7.5/config/kernel-generic_readlink.m4 is in zfs-dkms 0.7.5-1ubuntu15.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | dnl #
dnl # 4.10 API
dnl #
dnl # NULL inode_operations.readlink implies generic_readlink(), which
dnl # has been made static.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL], [
AC_MSG_CHECKING([whether generic_readlink is global])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
int i __attribute__ ((unused));
i = generic_readlink(NULL, NULL, 0);
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_READLINK, 1,
[generic_readlink is global])
],[
AC_MSG_RESULT([no])
])
])
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