mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-17 10:01:01 +03:00
28 lines
657 B
Plaintext
28 lines
657 B
Plaintext
|
dnl #
|
||
|
|
dnl # ZERO_PAGE() is an alias for emtpy_zero_page. On certain architectures
|
||
|
|
dnl # this is a GPL exported variable.
|
||
|
|
dnl #
|
||
|
|
|
||
|
|
dnl #
|
||
|
|
dnl # Checking if ZERO_PAGE is exported GPL-only
|
||
|
|
dnl #
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_ZERO_PAGE], [
|
||
|
|
ZFS_LINUX_TEST_SRC([zero_page], [
|
||
|
|
#include <asm/pgtable.h>
|
||
|
|
], [
|
||
|
|
struct page *p __attribute__ ((unused));
|
||
|
|
p = ZERO_PAGE(0);
|
||
|
|
], [], [ZFS_META_LICENSE])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_ZERO_PAGE], [
|
||
|
|
AC_MSG_CHECKING([whether ZERO_PAGE() is GPL-only])
|
||
|
|
ZFS_LINUX_TEST_RESULT([zero_page_license], [
|
||
|
|
AC_MSG_RESULT(no)
|
||
|
|
], [
|
||
|
|
AC_MSG_RESULT(yes)
|
||
|
|
AC_DEFINE(HAVE_ZERO_PAGE_GPL_ONLY, 1,
|
||
|
|
[ZERO_PAGE() is GPL-only])
|
||
|
|
])
|
||
|
|
])
|