linux/lib/xz/Kconfig
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   1config XZ_DEC
   2        tristate "XZ decompression support"
   3        select CRC32
   4        help
   5          LZMA2 compression algorithm and BCJ filters are supported using
   6          the .xz file format as the container. For integrity checking,
   7          CRC32 is supported. See Documentation/xz.txt for more information.
   8
   9config XZ_DEC_X86
  10        bool "x86 BCJ filter decoder" if EXPERT
  11        default y
  12        depends on XZ_DEC
  13        select XZ_DEC_BCJ
  14
  15config XZ_DEC_POWERPC
  16        bool "PowerPC BCJ filter decoder" if EXPERT
  17        default y
  18        depends on XZ_DEC
  19        select XZ_DEC_BCJ
  20
  21config XZ_DEC_IA64
  22        bool "IA-64 BCJ filter decoder" if EXPERT
  23        default y
  24        depends on XZ_DEC
  25        select XZ_DEC_BCJ
  26
  27config XZ_DEC_ARM
  28        bool "ARM BCJ filter decoder" if EXPERT
  29        default y
  30        depends on XZ_DEC
  31        select XZ_DEC_BCJ
  32
  33config XZ_DEC_ARMTHUMB
  34        bool "ARM-Thumb BCJ filter decoder" if EXPERT
  35        default y
  36        depends on XZ_DEC
  37        select XZ_DEC_BCJ
  38
  39config XZ_DEC_SPARC
  40        bool "SPARC BCJ filter decoder" if EXPERT
  41        default y
  42        depends on XZ_DEC
  43        select XZ_DEC_BCJ
  44
  45config XZ_DEC_BCJ
  46        bool
  47        default n
  48
  49config XZ_DEC_TEST
  50        tristate "XZ decompressor tester"
  51        default n
  52        depends on XZ_DEC
  53        help
  54          This allows passing .xz files to the in-kernel XZ decoder via
  55          a character special file. It calculates CRC32 of the decompressed
  56          data and writes diagnostics to the system log.
  57
  58          Unless you are developing the XZ decoder, you don't need this
  59          and should say N.
  60
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