make/toolchain.sh

Thu, 19 Sep 2024 22:17:24 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 19 Sep 2024 22:17:24 +0200
changeset 559
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parent 515
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permissions
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1 #!/bin/sh
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2 #
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3 # toolchain detection
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4 #
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5
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6 if isplatform "bsd" && notisplatform "openbsd"; then
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7 C_COMPILERS="clang gcc cc"
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8 CPP_COMPILERS="clang++ g++ CC"
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9 else
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10 C_COMPILERS="gcc clang suncc cc"
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11 CPP_COMPILERS="g++ clang++ sunCC CC"
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12 fi
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13 unset TOOLCHAIN
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14 unset TOOLCHAIN_NAME
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15 unset TOOLCHAIN_CC
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16 unset TOOLCHAIN_CXX
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18 check_c_compiler()
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19 {
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20 cat > "$TEMP_DIR/test.c" << __EOF__
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21 /* test file */
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22 #include <stdio.h>
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23 int main(int argc, char **argv) {
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24 #if defined(_MSC_VER)
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25 printf("msc\n");
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26 #elif defined(__clang__)
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27 printf("clang gnuc\n");
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28 #elif defined(__GNUC__)
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29 printf("gcc gnuc\n");
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30 #elif defined(__sun)
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31 printf("suncc\n");
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32 #else
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33 printf("unknown\n");
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34 #endif
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35 return 0;
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36 }
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37 __EOF__
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38 rm -f "$TEMP_DIR/checkcc"
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39 $1 -o "$TEMP_DIR/checkcc" $CFLAGS $LDFLAGS "$TEMP_DIR/test.c" 2> /dev/null
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40 }
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41
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42 check_cpp_compiler()
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43 {
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44 cat > "$TEMP_DIR/test.cpp" << __EOF__
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45 /* test file */
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46 #include <iostream>
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47 int main(int argc, char **argv) {
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48 #if defined(_MSC_VER)
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49 std::cout << "msc" << std::endl;
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50 #elif defined(__clang__)
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51 std::cout << "clang gnuc" << std::endl;
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52 #elif defined(__GNUC__)
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53 std::cout << "gcc gnuc" << std::endl;
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54 #elif defined(__sun)
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55 std::cout << "suncc" << std::endl;
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56 #else
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57 std::cout << "cc" << std::endl;
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58 #endif
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59 return 0;
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60 }
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61 __EOF__
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62 rm -f "$TEMP_DIR/checkcc"
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63 $1 -o "$TEMP_DIR/checkcc" $CXXFLAGS $LDFLAGS "$TEMP_DIR/test.cpp" 2> /dev/null
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64 }
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65
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66 create_libtest_source()
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67 {
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68 # $1: filename
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69 # $2: optional include
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70 cat > "$TEMP_DIR/$1" << __EOF__
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71 /* libtest file */
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72 int main(int argc, char **argv) {
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73 return 0;
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74 }
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75 __EOF__
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76 if [ -n "$2" ]; then
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77 echo "#include <$2>" >> "$TEMP_DIR/$1"
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78 fi
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79 }
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80
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81 check_c_lib()
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82 {
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83 # $1: libname
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84 # $2: optional include
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85 if [ -z "$TOOLCHAIN_CC" ]; then
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86 return 1
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87 fi
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88 create_libtest_source "test.c" "$2"
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89 rm -f "$TEMP_DIR/checklib"
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90 $TOOLCHAIN_CC -o "$TEMP_DIR/checklib" $CFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.c" 2> /dev/null
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91 }
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92
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93 check_cpp_lib()
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94 {
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95 # $1: libname
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96 # $2: optional include
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97 if [ -z "$TOOLCHAIN_CXX" ]; then
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98 return 1
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99 fi
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100 create_libtest_source "test.cpp" "$2"
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101 rm -f "$TEMP_DIR/checklib"
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102 $TOOLCHAIN_CXX -o "$TEMP_DIR/checklib" $CXXFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.cpp" 2> /dev/null
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103 }
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104
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105 check_lib()
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106 {
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107 # $1: libname
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108 # $2: optional include
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109 if [ -n "$TOOLCHAIN_CC" ]; then
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110 check_c_lib "$1" "$2"
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111 elif [ -n "$TOOLCHAIN_CXX" ]; then
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112 check_cpp_lib "$1" "$2"
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113 fi
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114 }
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115
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116 detect_c_compiler()
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117 {
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118 if [ -n "$TOOLCHAIN_CC" ]; then
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119 return 0
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120 fi
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121 printf "detect C compiler... "
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122 if [ -n "$CC" ]; then
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123 if check_c_compiler "$CC"; then
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124 TOOLCHAIN_CC=$CC
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125 TOOLCHAIN=`"$TEMP_DIR/checkcc"`
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126 TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
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127 echo "$CC"
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128 return 0
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129 else
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130 echo "$CC is not a working C compiler"
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131 return 1
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132 fi
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133 else
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134 for COMP in $C_COMPILERS
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135 do
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136 if check_c_compiler "$COMP"; then
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137 TOOLCHAIN_CC=$COMP
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138 TOOLCHAIN=`"$TEMP_DIR/checkcc"`
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139 TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
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140 echo "$COMP"
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141 return 0
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142 fi
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143 done
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144 echo "not found"
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145 return 1
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146 fi
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147 }
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148
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149 detect_cpp_compiler()
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150 {
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151 if [ -n "$TOOLCHAIN_CXX" ]; then
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152 return 0
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153 fi
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154 printf "detect C++ compiler... "
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155
515
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156 if [ -n "$CXX" ]; then
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157 if check_cpp_compiler "$CXX"; then
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158 TOOLCHAIN_CXX=$CXX
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159 TOOLCHAIN=`"$TEMP_DIR/checkcc"`
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160 TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
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161 echo "$CXX"
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162 return 0
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163 else
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164 echo "$CXX is not a working C++ compiler"
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165 return 1
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166 fi
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167 else
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168 for COMP in $CPP_COMPILERS
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169 do
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170 if check_cpp_compiler "$COMP"; then
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171 TOOLCHAIN_CXX=$COMP
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172 TOOLCHAIN=`"$TEMP_DIR/checkcc"`
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173 TOOLCHAIN_NAME=`echo "$TOOLCHAIN" | cut -f1 -d' ' -`
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174 echo "$COMP"
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175 return 0
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176 fi
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177 done
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178 echo "${TOOLCHAIN_CXX:-"not found"}"
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179 return 1
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180 fi
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181 }
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182
515
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183 write_toolchain_defaults()
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184 {
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185 echo "# toolchain" >> "$1"
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186 if [ -n "$TOOLCHAIN_CC" ]; then
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187 echo "CC = ${TOOLCHAIN_CC}" >> "$1"
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188 fi
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189 if [ -n "$TOOLCHAIN_CXX" ]; then
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190 echo "CXX = ${TOOLCHAIN_CXX}" >> "$1"
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191 fi
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192 echo >> "$1"
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193 if [ -f "make/${TOOLCHAIN_NAME}.mk" ]; then
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194 cat "make/${TOOLCHAIN_NAME}.mk" >> "$1"
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195 elif [ -f "make/cc.mk" ]; then
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196 cat "make/cc.mk" >> "$1"
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197 else
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198 echo "!!! WARNING !!! Default toolchain flags not found. Configuration might be incomplete."
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199 fi
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200 }

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