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annotate sources/sections/binutils-gcc.sh @ 842:dee27a32b160

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Fix static toolchain wrapping so distcc works with them too.
author Rob Landley <rob@landley.net>
date Sat, 10 Oct 2009 12:08:59 -0500
parents fc498452494a
children 96afbdffbf97
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
832
fc498452494a Add missing chunk too make distcc work again.
Rob Landley <rob@landley.net>
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1 # Build binutils, c wrapper, and uClibc++
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2
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3 # Build binutils, which provides the linker and assembler and such.
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4
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5 # PROGRAM_PREFIX affects the name of the generated tools, ala "${ARCH}-".
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6
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7 setupfor binutils
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8
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9 # The binutils ./configure stage is _really_stupid_, and we need to define
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10 # lots of environment variables to make it behave.
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11
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12 function configure_binutils()
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13 {
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14 "$CURSRC/configure" --prefix="$STAGE_DIR" \
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15 --build="$CROSS_HOST" --host="$FROM_HOST" --target="$CROSS_TARGET" \
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16 --disable-nls --disable-shared --disable-multilib --disable-werror \
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17 --with-lib-path=lib --program-prefix="$PROGRAM_PREFIX" $BINUTILS_FLAGS
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18
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19 [ $? -ne 0 ] && dienow
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20 }
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21
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22 if [ -z "$FROM_ARCH" ]
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23 then
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24 # Create a simple cross compiler, from this host to target $ARCH.
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25 # This has no prerequisites.
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26
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27 # The binutils ./configure stage is _really_stupid_. Define lots of
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28 # environment variables to make it behave.
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29
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30 AR=ar AS=as LD=ld NM=nm OBJDUMP=objdump OBJCOPY=objcopy configure_binutils
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31 else
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32 # Canadian cross for an arbitrary host/target. The new compiler will run
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33 # on $FROM_ARCH as its host, and build executables for $ARCH as its target.
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34 # (Use host==target to produce a native compiler.) Doing this requires
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35 # existing host ($FROM_ARCH) _and_ target ($ARCH) cross compilers as
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36 # prerequisites.
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37
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38 AR="${FROM_ARCH}-ar" CC="${FROM_ARCH}-cc" configure_binutils
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39 fi
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40
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41 # Now that it's configured, build and install binutils
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42
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43 make -j $CPUS configure-host &&
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44 make -j $CPUS CFLAGS="-O2 $STATIC_FLAGS" &&
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45 make -j $CPUS install &&
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46 mkdir -p "$STAGE_DIR/include" &&
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47 cp "$CURSRC/include/libiberty.h" "$STAGE_DIR/include"
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48
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49 cleanup build-binutils
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50
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51 # Force gcc to build, largely against its will.
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52
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53 setupfor gcc-core build-gcc
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54 setupfor gcc-g++ build-gcc gcc-core
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55
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56 # GCC tries to "help out in the kitchen" by screwing up the kernel include
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57 # files. Surgery with sed to cut out that horrible idea throw it away.
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58
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59 sed -i 's@^STMP_FIX.*@@' "${CURSRC}/gcc/Makefile.in" || dienow
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60
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61 # The gcc ./configure manages to make the binutils one look sane. Again,
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62 # wrap it so we can call it with different variables to beat sense out of it.
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63
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64 function configure_gcc()
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65 {
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66 "$CURSRC/configure" --target="$CROSS_TARGET" --prefix="$STAGE_DIR" \
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67 --disable-multilib --disable-nls --enable-c99 --enable-long-long \
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68 --enable-__cxa_atexit --enable-languages=c,c++ --disable-libstdcxx-pch \
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69 --program-prefix="$PROGRAM_PREFIX" "$@" $GCC_FLAGS &&
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70 mkdir -p gcc &&
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71 ln -s `which ${CC_FOR_TARGET:-cc}` gcc/xgcc || dienow
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72 }
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73
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74 if [ -z "$FROM_ARCH" ]
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75 then
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76 # Produce a standard host->target cross compiler, which does not include
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77 # thread support or libgcc_s.so to make it depend on the host less.
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78
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79 # The only prerequisite for this is binutils, above. (It doesn't even
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80 # require a C library for the target to exist yet, which is good because you
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81 # have a chicken and egg problem otherwise. What would you have compiled
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82 # that C library _with_?)
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83
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84 AR_FOR_TARGET="${ARCH}-ar" configure_gcc \
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85 --disable-threads --disable-shared --host="$CROSS_HOST"
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86 else
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87 # Canadian cross a compiler to run on $FROM_ARCH as its host and output
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88 # binaries for $ARCH as its target.
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89
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90 # GCC has some deep assumptions here, which are wrong. Lots of redundant
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91 # corrections are required to make it stop.
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92
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93 CC="${FROM_ARCH}-cc" AR="${FROM_ARCH}-ar" AS="${FROM_ARCH}-as" \
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94 LD="${FROM_ARCH}-ld" NM="${FROM_ARCH}-nm" \
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95 CC_FOR_TARGET="${ARCH}-cc" AR_FOR_TARGET="${ARCH}-ar" \
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96 NM_FOR_TARGET="${ARCH}-nm" GCC_FOR_TARGET="${ARCH}-cc" \
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97 AS_FOR_TARGET="${ARCH}-as" LD_FOR_TARGET="${ARCH}-ld" \
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98 CXX_FOR_TARGET="${ARCH}-c++" \
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99 ac_cv_path_AR_FOR_TARGET="${ARCH}-ar" \
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100 ac_cv_path_RANLIB_FOR_TARGET="${ARCH}-ranlib" \
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101 ac_cv_path_NM_FOR_TARGET="${ARCH}-nm" \
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102 ac_cv_path_AS_FOR_TARGET="${ARCH}-as" \
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103 ac_cv_path_LD_FOR_TARGET="${ARCH}-ld" \
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104 configure_gcc --enable-threads=posix --enable-shared \
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105 --build="$CROSS_HOST" --host="$CROSS_TARGET"
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106 fi
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107
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108 # Now that it's configured, build and install gcc
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109
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110 make -j $CPUS configure-host &&
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111 make -j $CPUS all-gcc LDFLAGS="$STATIC_FLAGS" &&
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112
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113 # Work around gcc bug; we disabled multilib but it doesn't always notice.
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114
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115 ln -s lib "$STAGE_DIR/lib64" &&
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116 make -j $CPUS install-gcc &&
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117 rm "$STAGE_DIR/lib64" &&
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118 ln -s "${PROGRAM_PREFIX}gcc" "$STAGE_DIR/bin/${PROGRAM_PREFIX}cc" || dienow
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119
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120 # Now we need to beat libsupc++ out of gcc (which uClibc++ needs to build).
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121 # But don't want to build the whole of libstdc++-v3 because
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122 # A) we're using uClibc++ instead, B) the build breaks.
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123
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124 if [ ! -z "$FROM_ARCH" ]
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125 then
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126 # The libsupc++ ./configure dies if run after the simple cross compiling
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127 # ./configure, because gcc's build system is overcomplicated crap. So
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128 # skip the uClibc++ build first time around. We still build C++ support
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129 # in gcc because we need it to canadian cross build uClibc++ later.
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130
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131 make -j $CPUS configure-target-libstdc++-v3 &&
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132 cd "$CROSS_TARGET"/libstdc++-v3/libsupc++ &&
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133 make -j $CPUS &&
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134 mv .libs/libsupc++.a "$STAGE_DIR"/lib || dienow
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135 fi
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136
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137 # We're done with that source and could theoretically cleanup gcc-core and
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138 # build-gcc here, but we still need the timestamps if we do binary package
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139 # tarballs.
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140
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141 function build_ccwrap()
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142 {
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143 # build and install gcc wrapper script.
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144
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145 TEMP="${FROM_ARCH}-cc"
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146 [ -z "$FROM_ARCH" ] && TEMP="$CC"
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147
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148 mv "$STAGE_DIR/bin/${PROGRAM_PREFIX}"{gcc,rawgcc} &&
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149 "$TEMP" "$SOURCES/toys/ccwrap.c" -Os -s \
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150 -o "$STAGE_DIR/bin/${PROGRAM_PREFIX}gcc" "$@" $STATIC_FLAGS \
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151 -DGCC_UNWRAPPED_NAME='"'"${PROGRAM_PREFIX}rawgcc"'"' &&
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152
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153 # Move the gcc internal libraries and headers somewhere sane
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154
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155 mkdir -p "$STAGE_DIR"/gcc &&
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156 mv "$STAGE_DIR"/lib/gcc/*/*/include "$STAGE_DIR"/gcc/include &&
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157 mv "$STAGE_DIR"/lib/gcc/*/* "$STAGE_DIR"/gcc/lib &&
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158
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159 # Rub gcc's nose in the binutils output. (It's RIGHT THERE! Find it!)
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160
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161 cd "$STAGE_DIR"/libexec/gcc/*/*/ &&
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162 cp -s "../../../../$CROSS_TARGET/bin/"* . &&
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163
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164 ln -s ${CROSS_TARGET} ${STAGE_DIR}/tools &&
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165 ln -sf ../../../../tools/bin/ld ${STAGE_DIR}/libexec/gcc/*/*/collect2 || dienow
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166
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167 # These are allowed to fail, there for static toolchains that don't make 'em.
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168
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169 ln -s ../../bin/${PROGRAM_PREFIX}-rawgcc gcc 2>/dev/null
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170 ln -s ../../bin/${PROGRAM_PREFIX}-rawgcc cc 2>/dev/null
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171 ln -s ../../bin/${PROGRAM_PREFIX}-rawg++ g++ 2>/dev/null
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172 ln -s ../../bin/${PROGRAM_PREFIX}-rawg++ c++ 2>/dev/null
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173
823
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174 # Wrap C++ too.
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175
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176 mv "$STAGE_DIR/bin/${PROGRAM_PREFIX}"{g++,rawg++} &&
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177 rm "$STAGE_DIR/bin/${PROGRAM_PREFIX}c++" &&
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178 ln -s "$STAGE_DIR/bin/${PROGRAM_PREFIX}"{rawg++,rawc++} &&
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179 ln -s "$STAGE_DIR/bin/${PROGRAM_PREFIX}"{gcc,g++} &&
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180 ln -s "$STAGE_DIR/bin/${PROGRAM_PREFIX}"{gcc,c++} || dienow
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181 }
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182
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183 if [ -z "$FROM_ARCH" ]
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184 then
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185 build_ccwrap
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186 else
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187 build_ccwrap -DGIMME_AN_S
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188 fi
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189
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190 mv "$WORK"/{gcc-core,gcc}
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191 PACKAGE=gcc cleanup build-gcc "${STAGE_DIR}"/{lib/gcc,{libexec/gcc,gcc/lib}/install-tools,bin/${ARCH}-unknown-*}