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1 | dnl # |
2 | dnl # zlib inflate compat, | |
3 | dnl # Verify the kernel has CONFIG_ZLIB_INFLATE support enabled. | |
4 | dnl # | |
5 | AC_DEFUN([SPL_AC_CONFIG_ZLIB_INFLATE], [ | |
6 | AC_MSG_CHECKING([whether CONFIG_ZLIB_INFLATE is defined]) | |
7 | SPL_LINUX_TRY_COMPILE([ | |
8 | #if !defined(CONFIG_ZLIB_INFLATE) && \ | |
9 | !defined(CONFIG_ZLIB_INFLATE_MODULE) | |
10 | #error CONFIG_ZLIB_INFLATE not defined | |
11 | #endif | |
12 | ],[ ],[ | |
13 | AC_MSG_RESULT([yes]) | |
14 | ],[ | |
15 | AC_MSG_RESULT([no]) | |
16 | AC_MSG_ERROR([ | |
17 | *** This kernel does not include the required zlib inflate support. | |
18 | *** Rebuild the kernel with CONFIG_ZLIB_INFLATE=y|m set.]) | |
19 | ]) | |
20 | ]) | |
21 | ||
22 | dnl # | |
23 | dnl # zlib deflate compat, | |
24 | dnl # Verify the kernel has CONFIG_ZLIB_DEFLATE support enabled. | |
25 | dnl # | |
26 | AC_DEFUN([SPL_AC_CONFIG_ZLIB_DEFLATE], [ | |
27 | AC_MSG_CHECKING([whether CONFIG_ZLIB_DEFLATE is defined]) | |
28 | SPL_LINUX_TRY_COMPILE([ | |
29 | #if !defined(CONFIG_ZLIB_DEFLATE) && \ | |
30 | !defined(CONFIG_ZLIB_DEFLATE_MODULE) | |
31 | #error CONFIG_ZLIB_DEFLATE not defined | |
32 | #endif | |
33 | ],[ ],[ | |
34 | AC_MSG_RESULT([yes]) | |
35 | ],[ | |
36 | AC_MSG_RESULT([no]) | |
37 | AC_MSG_ERROR([ | |
38 | *** This kernel does not include the required zlib deflate support. | |
39 | *** Rebuild the kernel with CONFIG_ZLIB_DEFLATE=y|m set.]) | |
40 | ]) | |
41 | ]) | |
42 | ||
43 | dnl # | |
44 | dnl # 2.6.39 API compat, | |
45 | dnl # The function zlib_deflate_workspacesize() now take 2 arguments. | |
46 | dnl # This was done to avoid always having to allocate the maximum size | |
47 | dnl # workspace (268K). The caller can now specific the windowBits and | |
48 | dnl # memLevel compression parameters to get a smaller workspace. | |
49 | dnl # | |
50 | AC_DEFUN([SPL_AC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE], | |
51 | [AC_MSG_CHECKING([whether zlib_deflate_workspacesize() wants 2 args]) | |
52 | SPL_LINUX_TRY_COMPILE([ | |
53 | #include <linux/zlib.h> | |
54 | ],[ | |
55 | return zlib_deflate_workspacesize(MAX_WBITS, MAX_MEM_LEVEL); | |
56 | ],[ | |
57 | AC_MSG_RESULT(yes) | |
58 | AC_DEFINE(HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE, 1, | |
59 | [zlib_deflate_workspacesize() wants 2 args]) | |
60 | ],[ | |
61 | AC_MSG_RESULT(no) | |
62 | ]) | |
63 | ]) |