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annotate host-tools.sh @ 508:909a4921273d

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Move genext2fs build to host-tools, remove dead code, add comments.
author Rob Landley <rob@landley.net>
date Sun, 30 Nov 2008 06:20:35 -0600
parents 3fe5916931e5
children 8d2b9cd1a52e
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177
6b4844b708b9 dash->bash.
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1 #!/bin/bash
93
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2
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3 # Get lots of predefined environment variables and shell functions.
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4
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5 # Tell bash not to cache the $PATH to anything, so busybox/toybox utilities
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6 # get used immediately even if a different executable was found last lookup.
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7 set +h
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8
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9 NO_ARCH=1
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e98ed40c55ef Move include.sh to sources/include.sh. End user doesn't call it directly, shouldn't be at top level.
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10 source sources/include.sh
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11
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b0438691e9e1 Move color selection into ./config. (The default colors don't look great on a white background.)
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12 echo -e "$HOST_COLOR"
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13 echo "=== Building host tools"
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14
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15 export LC_ALL=C
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16
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fd6d26721acf Minor tweak, move toybox build to the start.
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17 mkdir -p "${HOSTTOOLS}" || dienow
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18
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19 # If we want to record the host command lines, so we know exactly what commands
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20 # the build uses.
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21
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22 if [ ! -z "$RECORD_COMMANDS" ] && [ ! -f "$BUILD/wrapdir/wrappy" ]
352
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23 then
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24 echo setup wrapdir
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25
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26 # Build the wrapper and install it into build/wrapdir/wrappy
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27 rm -rf "$BUILD/wrapdir"
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28 mkdir "$BUILD/wrapdir" &&
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29 $CC -Os "$SOURCES/toys/wrappy.c" -o "$BUILD/wrapdir/wrappy" || dienow
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30
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31 # Loop through each $PATH element and create a symlink to the wrapper with
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32 # that name.
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33
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34 for i in $(echo $PATH | sed 's/:/ /g')
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35 do
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36 for j in $(ls $i)
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37 do
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38 ln -s wrappy "$BUILD/wrapdir/$j"
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39 done
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40 done
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41
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42 # Adjust things to use wrapper directory
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43
352
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44 export WRAPPY_REALPATH="$PATH"
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45 PATH="$BUILD/wrapdir"
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46
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47 # If we're not recording the host command lines, then populate a directory
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48 # with host versions of all the command line utilities we're going to install
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49 # into mini-native. When we're done, PATH can be set to include just this
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50 # directory and nothing else.
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51
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52 # This serves three purposes:
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53 #
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54 # 1) Enumerate exactly what we need to build the system, so we can make sure
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55 # mini-native has everything it needs to rebuild us. If anything is missing
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56 # from this list, the resulting mini-native probably won't have it either,
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57 # so it's nice to know as early as possible that we actually needed it.
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58 #
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59 # 2) Quick smoke test that the versions of the tools we're using can compile
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60 # everything from source correctly, and thus mini-native should be able to
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61 # rebuild from source using those same tools.
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62 #
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63 # 3) Reduce variation from distro to distro. The build always uses the
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64 # same command line utilities no matter where we're running, because we
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65 # provide our own.
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66
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67 else
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68
352
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69 # Start by creating symlinks to the host toolchain, since we need to use
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70 # that to build anything else. We build a cross compiler, and a native
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71 # compiler for the target, but we don't build a host toolchain. We use the
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72 # one that's already there.
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73
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74 for i in ar as nm cc gcc make ld
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75 do
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76 [ ! -f "${HOSTTOOLS}/$i" ] && (ln -s `which $i` "${HOSTTOOLS}/$i" || dienow)
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77 done
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78
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79 # Build toybox
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80
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81 if [ ! -f "${HOSTTOOLS}/patch" ]
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82 then
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83 setupfor toybox &&
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84 if [ -z "$USE_TOYBOX" ]
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85 then
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86 echo "CONFIG_PATCH=y" > mini.conf &&
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87 make allnoconfig KCONFIG_ALLCONFIG=mini.conf &&
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88 make &&
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89 mv toybox "$HOSTTOOLS"/patch &&
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90 cd ..
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91 else
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92 make defconfig &&
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93 make &&
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94 make install_flat PREFIX="${HOSTTOOLS}" &&
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95 cd ..
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96 fi
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97
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98 cleanup toybox
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99 fi
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100
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101 # Build busybox
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102
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103 # Yes this is an old version of busybox. (It's the last version I released
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104 # as busybox maintainer.) We're gradually replacing busybox with toybox, one
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105 # command at a time.
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106
352
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107 if [ ! -f "${HOSTTOOLS}/busybox" ]
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108 then
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109 setupfor busybox &&
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110 make allyesconfig KCONFIG_ALLCONFIG="${SOURCES}/trimconfig-busybox" &&
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111 make -j $CPUS &&
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112 make busybox.links &&
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113 cp busybox "${HOSTTOOLS}"
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114
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115 [ $? -ne 0 ] && dienow
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116
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117 for i in $(sed 's@.*/@@' busybox.links)
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118 do
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119 ln -s busybox "${HOSTTOOLS}"/$i # || dienow
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120 done
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121 cd ..
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122
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123 cleanup busybox
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124 fi
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125 fi
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126
254
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127
301
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128 # This is optionally used by mini-native to accelerate native builds when
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129 # running under qemu. It's not used to build mini-native, or to build
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130 # the cross compiler, but it needs to be on the host system in order to
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131 # use the distcc acceleration trick.
301
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132
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133 # Build distcc (if it's not in $PATH)
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134 if [ ! -f "${HOSTTOOLS}"/distccd ]
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135 then
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136 if [ -z "$(which distccd)" ]
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137 then
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138 setupfor distcc &&
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139 ./configure --with-included-popt &&
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140 make -j "$CPUS" &&
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141 cp distcc distccd "${HOSTTOOLS}" &&
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142 cd ..
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143
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144 cleanup distcc
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145 else
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146 ln -s "$(which distccd)" "${HOSTTOOLS}"/distccd
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147 fi
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148 fi
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149
508
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150 # If the host system hasn't got genext2fs, build it. We use it to build the
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151 # ext2 image to boot qemu with in package-mini-native.sh.
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152
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153 if [ -z "$(which genext2fs)" ]
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154 then
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155 setupfor genext2fs &&
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156 ./configure &&
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157 make -j $CPUS &&
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158 cp genext2fs "${HOSTTOOLS}" &&
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159 cd ..
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160
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161 cleanup genext2fs
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162 fi
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163
301
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164 # Everything after here is stuff we _could_ build, but currently don't.
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165
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166 # Build squashfs
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167 #setupfor squashfs
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168 #cd squashfs-tools &&
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169 #make &&
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170 #cp mksquashfs unsquashfs "${HOSTTOOLS}" &&
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171 #cd ..
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172 #
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173 #cleanup squashfs
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174
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175 if [ ! -z "$RECORD_COMMANDS" ]
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176 then
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177 # Add the host tools we just built to wrapdir
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178 for j in $(ls "$HOSTTOOLS")
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179 do
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180 ln -s wrappy "$BUILD/wrapdir/$j"
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181 done
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182 fi
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183
93
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184 echo -e "\e[32mHost tools build complete.\e[0m"