64 lines
1.9 KiB
Text
64 lines
1.9 KiB
Text
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dnl #
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dnl # zlib inflate compat,
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dnl # Verify the kernel has CONFIG_ZLIB_INFLATE support enabled.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_CONFIG_ZLIB_INFLATE], [
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AC_MSG_CHECKING([whether CONFIG_ZLIB_INFLATE is defined])
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ZFS_LINUX_TRY_COMPILE([
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#if !defined(CONFIG_ZLIB_INFLATE) && \
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!defined(CONFIG_ZLIB_INFLATE_MODULE)
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#error CONFIG_ZLIB_INFLATE not defined
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#endif
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],[ ],[
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AC_MSG_RESULT([yes])
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],[
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AC_MSG_RESULT([no])
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AC_MSG_ERROR([
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*** This kernel does not include the required zlib inflate support.
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*** Rebuild the kernel with CONFIG_ZLIB_INFLATE=y|m set.])
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])
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])
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dnl #
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dnl # zlib deflate compat,
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dnl # Verify the kernel has CONFIG_ZLIB_DEFLATE support enabled.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_CONFIG_ZLIB_DEFLATE], [
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AC_MSG_CHECKING([whether CONFIG_ZLIB_DEFLATE is defined])
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ZFS_LINUX_TRY_COMPILE([
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#if !defined(CONFIG_ZLIB_DEFLATE) && \
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!defined(CONFIG_ZLIB_DEFLATE_MODULE)
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#error CONFIG_ZLIB_DEFLATE not defined
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#endif
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],[ ],[
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AC_MSG_RESULT([yes])
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],[
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AC_MSG_RESULT([no])
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AC_MSG_ERROR([
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*** This kernel does not include the required zlib deflate support.
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*** Rebuild the kernel with CONFIG_ZLIB_DEFLATE=y|m set.])
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])
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])
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dnl #
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dnl # 2.6.39 API compat,
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dnl # The function zlib_deflate_workspacesize() now take 2 arguments.
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dnl # This was done to avoid always having to allocate the maximum size
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dnl # workspace (268K). The caller can now specific the windowBits and
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dnl # memLevel compression parameters to get a smaller workspace.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE],
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[AC_MSG_CHECKING([whether zlib_deflate_workspacesize() wants 2 args])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/zlib.h>
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],[
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return zlib_deflate_workspacesize(MAX_WBITS, MAX_MEM_LEVEL);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE, 1,
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[zlib_deflate_workspacesize() wants 2 args])
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],[
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AC_MSG_RESULT(no)
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])
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])
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