1dnl #
2dnl # 2.6.39 API compat,
3dnl
4dnl # The function zlib_deflate_workspacesize() now take 2 arguments.
5dnl # This was done to avoid always having to allocate the maximum size
6dnl # workspace (268K).  The caller can now specific the windowBits and
7dnl # memLevel compression parameters to get a smaller workspace.
8dnl #
9AC_DEFUN([ZFS_AC_KERNEL_SRC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE], [
10	ZFS_LINUX_TEST_SRC([2args_zlib_deflate_workspacesize], [
11		#include <linux/zlib.h>
12	],[
13		return zlib_deflate_workspacesize(MAX_WBITS, MAX_MEM_LEVEL);
14	])
15])
16
17AC_DEFUN([ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE], [
18	AC_MSG_CHECKING([whether zlib_deflate_workspacesize() wants 2 args])
19	ZFS_LINUX_TEST_RESULT([2args_zlib_deflate_workspacesize], [
20		AC_MSG_RESULT(yes)
21		AC_DEFINE(HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE, 1,
22		    [zlib_deflate_workspacesize() wants 2 args])
23	],[
24		ZFS_LINUX_TEST_ERROR([zlib_deflate_workspacesize()])
25	])
26])
27