1 | #
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2 | # For a description of the syntax of this configuration file,
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3 | # see scripts/kbuild/config-language.txt.
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4 | #
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5 |
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6 | menu "Archival Utilities"
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7 |
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8 | config AR
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9 | bool "ar"
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10 | default n
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11 | help
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12 | ar is an archival utility program used to create, modify, and
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13 | extract contents from archives. An archive is a single file holding
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14 | a collection of other files in a structure that makes it possible to
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15 | retrieve the original individual files (called archive members).
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16 | The original files' contents, mode (permissions), timestamp, owner,
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17 | and group are preserved in the archive, and can be restored on
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18 | extraction.
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19 |
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20 | The stored filename is limited to 15 characters. (for more information
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21 | see long filename support).
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22 | ar has 60 bytes of overheads for every stored file.
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23 |
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24 | This implementation of ar can extract archives, it cannot create or
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25 | modify them.
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26 | On an x86 system, the ar applet adds about 1K.
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27 |
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28 | Unless you have a specific application which requires ar, you should
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29 | probably say N here.
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30 |
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31 | config FEATURE_AR_LONG_FILENAMES
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32 | bool "Enable support for long filenames (not need for debs)"
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33 | default n
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34 | depends on AR
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35 | help
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36 | By default the ar format can only store the first 15 characters of the
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37 | filename, this option removes that limitation.
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38 | It supports the GNU ar long filename method which moves multiple long
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39 | filenames into a the data section of a new ar entry.
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40 |
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41 | config BUNZIP2
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42 | bool "bunzip2"
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43 | default n
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44 | help
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45 | bunzip2 is a compression utility using the Burrows-Wheeler block
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46 | sorting text compression algorithm, and Huffman coding. Compression
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47 | is generally considerably better than that achieved by more
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48 | conventional LZ77/LZ78-based compressors, and approaches the
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49 | performance of the PPM family of statistical compressors.
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50 |
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51 | The BusyBox bunzip2 applet is limited to de-compression only.
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52 | On an x86 system, this applet adds about 11K.
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53 |
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54 | Unless you have a specific application which requires bunzip2, you
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55 | should probably say N here.
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56 |
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57 | config CPIO
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58 | bool "cpio"
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59 | default n
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60 | help
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61 | cpio is an archival utility program used to create, modify, and extract
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62 | contents from archives.
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63 | cpio has 110 bytes of overheads for every stored file.
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64 |
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65 | This implementation of cpio can extract cpio archives created in the
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66 | "newc" or "crc" format, it cannot create or modify them.
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67 |
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68 | Unless you have a specific application which requires cpio, you should
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69 | probably say N here.
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70 |
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71 | config DPKG
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72 | bool "dpkg"
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73 | default n
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74 | help
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75 | dpkg is a medium-level tool to install, build, remove and manage Debian packages.
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76 |
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77 | This implementation of dpkg has a number of limitations, you should use the
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78 | official dpkg if possible.
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79 |
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80 | config DPKG_DEB
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81 | bool "dpkg_deb"
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82 | default n
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83 | help
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84 | dpkg-deb packs, unpacks and provides information about Debian archives.
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85 |
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86 | This implementation of dpkg-deb cannot pack archives.
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87 |
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88 | Unless you have a specific application which requires dpkg-deb, you should
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89 | probably say N here.
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90 |
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91 | config FEATURE_DPKG_DEB_EXTRACT_ONLY
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92 | bool "extract only (-x)"
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93 | default n
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94 | depends on DPKG_DEB
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95 | help
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96 | This reduces dpkg-deb to the equivalent of "ar -p <deb> data.tar.gz | tar -zx".
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97 | However it saves space as none of the extra dpkg-deb, ar or tar options are
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98 | needed, they are linked to internally.
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99 |
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100 | config GUNZIP
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101 | bool "gunzip"
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102 | default n
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103 | help
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104 | gunzip is used to decompress archives created by gzip.
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105 | You can use the `-t' option to test the integrity of
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106 | an archive, without decompressing it.
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107 |
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108 | config FEATURE_GUNZIP_UNCOMPRESS
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109 | bool "Uncompress support"
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110 | default n
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111 | depends on GUNZIP
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112 | help
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113 | Enable if you want gunzip to have the ability to decompress
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114 | archives created by the program compress (not much
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115 | used anymore).
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116 |
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117 | config GZIP
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118 | bool "gzip"
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119 | default n
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120 | help
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121 | gzip is used to compress files.
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122 | It's probably the most widely used UNIX compression program.
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123 |
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124 | config RPM2CPIO
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125 | bool "rpm2cpio"
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126 | default n
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127 | help
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128 | Converts an RPM file into a CPIO archive.
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129 |
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130 | config RPM
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131 | bool "rpm"
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132 | default n
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133 | help
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134 | Mini RPM applet - queries and extracts RPM packages.
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135 |
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136 | config FEATURE_RPM_BZ2
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137 | bool "Enable handling of rpms with bzip2-compressed data inside"
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138 | default n
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139 | depends on RPM
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140 | help
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141 | Enable handling of rpms with bzip2-compressed data inside.
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142 |
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143 | config TAR
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144 | bool "tar"
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145 | default n
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146 | help
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147 | tar is an archiving program. It's commonly used with gzip to
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148 | create compressed archives. It's probably the most widely used
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149 | UNIX archive program.
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150 |
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151 | config FEATURE_TAR_CREATE
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152 | bool "Enable archive creation"
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153 | default y
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154 | depends on TAR
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155 | help
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156 | If you enable this option you'll be able to create
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157 | tar archives using the `-c' option.
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158 |
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159 | config FEATURE_TAR_BZIP2
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160 | bool "Enable -j option to handle .tar.bz2 files"
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161 | default n
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162 | depends on TAR
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163 | help
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164 | If you enable this option you'll be able to extract
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165 | archives compressed with bzip2.
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166 |
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167 | config FEATURE_TAR_LZMA
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168 | bool "Enable -a option to handle .tar.lzma files"
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169 | default n
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170 | depends on TAR
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171 | help
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172 | If you enable this option you'll be able to extract
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173 | archives compressed with lzma.
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174 |
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175 | config FEATURE_TAR_FROM
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176 | bool "Enable -X (exclude from) and -T (include from) options)"
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177 | default n
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178 | depends on TAR
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179 | help
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180 | If you enable this option you'll be able to specify
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181 | a list of files to include or exclude from an archive.
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182 |
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183 | config FEATURE_TAR_GZIP
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184 | bool "Enable -z option"
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185 | default y
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186 | depends on TAR
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187 | help
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188 | If you enable this option tar will be able to call gzip,
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189 | when creating or extracting tar gziped archives.
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190 |
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191 | config FEATURE_TAR_COMPRESS
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192 | bool "Enable -Z option"
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193 | default n
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194 | depends on TAR
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195 | help
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196 | If you enable this option tar will be able to call uncompress,
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197 | when extracting .tar.Z archives.
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198 |
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199 | config FEATURE_TAR_OLDGNU_COMPATIBILITY
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200 | bool "Enable support for old tar header format"
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201 | default N
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202 | depends on TAR
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203 | help
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204 | This option is required to unpack archives created in
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205 | the old GNU format; help to kill this old format by
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206 | repacking your ancient archives with the new format.
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207 |
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208 | config FEATURE_TAR_OLDSUN_COMPATIBILITY
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209 | bool "Enable untarring of tarballs with checksums produced by buggy Sun tar"
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210 | default N
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211 | depends on TAR
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212 | help
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213 | This option is required to unpack archives created by some old
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214 | version of Sun's tar (it was calculating checksum using signed arithmetic).
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215 | It is said to be fixed in newer Sun tar, but "old" tarballs still exist.
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216 |
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217 | config FEATURE_TAR_GNU_EXTENSIONS
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218 | bool "Enable support for some GNU tar extensions"
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219 | default y
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220 | depends on TAR
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221 | help
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222 | With this option busybox supports GNU long filenames and
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223 | linknames.
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224 |
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225 | config FEATURE_TAR_LONG_OPTIONS
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226 | bool "Enable long options"
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227 | default n
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228 | depends on TAR && GETOPT_LONG
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229 | help
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230 | Enable use of long options, increases size by about 400 Bytes
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231 |
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232 | config UNCOMPRESS
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233 | bool "uncompress"
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234 | default n
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235 | help
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236 | uncompress is used to decompress archives created by compress.
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237 | Not much used anymore, replaced by gzip/gunzip.
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238 |
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239 | config UNLZMA
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240 | bool "unlzma"
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241 | default n
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242 | help
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243 | unlzma is a compression utility using the Lempel-Ziv-Markov chain
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244 | compression algorithm, and range coding. Compression
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245 | is generally considerably better than that achieved by the bzip2
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246 | compressors.
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247 |
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248 | The BusyBox unlzma applet is limited to de-compression only.
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249 | On an x86 system, this applet adds about 4K.
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250 |
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251 | Unless you have a specific application which requires unlzma, you
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252 | should probably say N here.
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253 |
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254 | config FEATURE_LZMA_FAST
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255 | bool "Optimze unlzma for speed"
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256 | default n
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257 | depends on UNLZMA
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258 | help
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259 | This option reduces decompression time by about 33% at the cost of
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260 | a 2K bigger binary.
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261 |
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262 | config UNZIP
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263 | bool "unzip"
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264 | default n
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265 | help
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266 | unzip will list or extract files from a ZIP archive,
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267 | commonly found on DOS/WIN systems. The default behavior
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268 | (with no options) is to extract the archive into the
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269 | current directory. Use the `-d' option to extract to a
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270 | directory of your choice.
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271 |
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272 | comment "Common options for cpio and tar"
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273 | depends on CPIO || TAR
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274 |
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275 | config FEATURE_UNARCHIVE_TAPE
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276 | bool "Enable tape drive support"
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277 | default n
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278 | depends on CPIO || TAR
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279 | help
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280 | I don't think this is needed anymore.
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281 |
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282 | comment "Common options for dpkg and dpkg_deb"
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283 | depends on DPKG || DPKG_DEB
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284 |
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285 | config FEATURE_DEB_TAR_GZ
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286 | bool "gzip debian packages (normal)"
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287 | default y if DPKG || DPKG_DEB
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288 | depends on DPKG || DPKG_DEB
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289 | help
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290 | This is the default compression method inside the debian ar file.
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291 |
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292 | If you want compatibility with standard .deb's you should say yes here.
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293 |
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294 | config FEATURE_DEB_TAR_BZ2
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295 | bool "bzip2 debian packages"
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296 | default n
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297 | depends on DPKG || DPKG_DEB
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298 | help
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299 | This allows dpkg and dpkg-deb to extract deb's that are compressed internally
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300 | with bzip2 instead of gzip.
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301 |
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302 | You only want this if you are creating your own custom debian packages that
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303 | use an internal control.tar.bz2 or data.tar.bz2.
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304 |
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305 | config FEATURE_DEB_TAR_LZMA
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306 | bool "lzma debian packages"
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307 | default n
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308 | depends on DPKG || DPKG_DEB
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309 | help
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310 | This allows dpkg and dpkg-deb to extract deb's that are compressed
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311 | internally with lzma instead of gzip.
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312 |
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313 | You only want this if you are creating your own custom debian
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314 | packages that use an internal control.tar.lzma or data.tar.lzma.
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315 |
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316 | endmenu
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