Tue, 19 Sep 2023 19:29:19 +0200
check compilers before any dependency checks
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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 | C_COMPILERS="gcc clang suncc cc" |
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7 | CPP_COMPILERS="g++ clang++ sunCC CC" |
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8 | unset TOOLCHAIN_NAME |
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9 | unset TOOLCHAIN_CC |
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10 | unset TOOLCHAIN_CXX |
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11 | |
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12 | check_c_compiler() |
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13 | { |
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14 | cat > "$TEMP_DIR/test.c" << __EOF__ |
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15 | /* test file */ |
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16 | #include <stdio.h> |
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17 | int main(int argc, char **argv) { |
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18 | #if defined(__clang__) |
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19 | printf("clang\n"); |
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20 | #elif defined(__GNUC__) |
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21 | printf("gcc\n"); |
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22 | #elif defined(__sun) |
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23 | printf("suncc\n"); |
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24 | #else |
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25 | printf("unknown\n"); |
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26 | #endif |
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27 | return 0; |
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28 | } |
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29 | __EOF__ |
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30 | rm -f "$TEMP_DIR/checkcc" |
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31 | $1 -o "$TEMP_DIR/checkcc" $CFLAGS $LDFLAGS "$TEMP_DIR/test.c" 2> /dev/null |
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32 | } |
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33 | |
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34 | check_cpp_compiler() |
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35 | { |
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36 | cat > "$TEMP_DIR/test.cpp" << __EOF__ |
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37 | /* test file */ |
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38 | #include <iostream> |
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39 | int main(int argc, char **argv) { |
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40 | #if defined(__clang__) |
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41 | std::cout << "clang" << std::endl; |
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42 | #elif defined(__GNUC__) |
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43 | std::cout << "gcc" << std::endl; |
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44 | #elif defined(__sun) |
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45 | std::cout << "suncc" << std::endl; |
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46 | #else |
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47 | std::cout << "cc" << std::endl; |
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48 | #endif |
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49 | return 0; |
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50 | } |
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51 | __EOF__ |
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52 | rm -f "$TEMP_DIR/checkcc" |
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53 | $1 -o "$TEMP_DIR/checkcc" $CXXFLAGS $LDFLAGS "$TEMP_DIR/test.cpp" 2> /dev/null |
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54 | } |
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55 | |
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56 | check_c_lib() |
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57 | { |
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58 | if [ -z "$TOOLCHAIN_CC" ]; then |
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59 | return 1 |
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60 | fi |
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61 | cat > "$TEMP_DIR/test.c" << __EOF__ |
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62 | /* libtest file */ |
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63 | int main(int argc, char **argv) { |
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64 | return 0; |
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65 | } |
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66 | __EOF__ |
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67 | rm -f "$TEMP_DIR/checklib" |
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68 | $TOOLCHAIN_CC -o "$TEMP_DIR/checklib" $CFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.c" 2> /dev/null |
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69 | } |
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70 | |
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71 | check_cpp_lib() |
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72 | { |
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73 | if [ -z "$TOOLCHAIN_CXX" ]; then |
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74 | return 1 |
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75 | fi |
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76 | cat > "$TEMP_DIR/test.cpp" << __EOF__ |
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77 | /* libtest file */ |
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78 | int main(int argc, char **argv) { |
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79 | return 0; |
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80 | } |
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81 | __EOF__ |
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82 | rm -f "$TEMP_DIR/checklib" |
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83 | $TOOLCHAIN_CXX -o "$TEMP_DIR/checklib" $CXXFLAGS $LDFLAGS "-l$1" "$TEMP_DIR/test.cpp" 2> /dev/null |
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84 | } |
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85 | |
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86 | check_lib() |
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87 | { |
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88 | if [ -n "$TOOLCHAIN_CC" ]; then |
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89 | check_c_lib "$1" |
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90 | elif [ -n "$TOOLCHAIN_CXX" ]; then |
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91 | check_cpp_lib "$1" |
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92 | fi |
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93 | } |
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94 | |
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95 | detect_c_compiler() |
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96 | { |
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97 | if [ -n "$TOOLCHAIN_CC" ]; then |
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98 | return 0 |
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99 | fi |
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100 | printf "detect C compiler... " |
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101 | if [ -n "$CC" ]; then |
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102 | if check_c_compiler "$CC"; then |
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103 | TOOLCHAIN_CC=$CC |
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104 | TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"` |
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105 | echo "$CC" |
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106 | return 0 |
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107 | else |
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108 | echo "$CC is not a working C compiler" |
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109 | return 1 |
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110 | fi |
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111 | else |
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112 | for COMP in $C_COMPILERS |
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113 | do |
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114 | if check_c_compiler "$COMP"; then |
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115 | TOOLCHAIN_CC=$COMP |
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116 | TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"` |
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117 | echo "$COMP" |
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118 | return 0 |
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119 | fi |
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120 | done |
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121 | echo "not found" |
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122 | return 1 |
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123 | fi |
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124 | } |
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125 | |
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126 | detect_cpp_compiler() |
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127 | { |
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128 | if [ -n "$TOOLCHAIN_CXX" ]; then |
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129 | return 0 |
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130 | fi |
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131 | printf "detect C++ compiler... " |
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132 | |
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133 | if [ -n "$CXX" ]; then |
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134 | if check_cpp_compiler "$CXX"; then |
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135 | TOOLCHAIN_CXX=$CXX |
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136 | TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"` |
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137 | echo "$CXX" |
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138 | return 0 |
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139 | else |
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140 | echo "$CXX is not a working C++ compiler" |
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141 | return 1 |
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142 | fi |
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143 | else |
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144 | for COMP in $CPP_COMPILERS |
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145 | do |
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146 | if check_cpp_compiler "$COMP"; then |
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147 | TOOLCHAIN_CXX=$COMP |
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148 | TOOLCHAIN_NAME=`"$TEMP_DIR/checkcc"` |
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149 | echo "$COMP" |
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150 | return 0 |
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151 | fi |
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152 | done |
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153 | echo "${TOOLCHAIN_CXX:-"not found"}" |
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154 | return 1 |
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155 | fi |
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156 | } |
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157 | |
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158 | write_toolchain_defaults() |
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159 | { |
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160 | echo "# toolchain" >> "$1" |
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161 | if [ -n "$TOOLCHAIN_CC" ]; then |
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162 | echo "CC = ${TOOLCHAIN_CC}" >> "$1" |
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163 | fi |
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164 | if [ -n "$TOOLCHAIN_CXX" ]; then |
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165 | echo "CXX = ${TOOLCHAIN_CXX}" >> "$1" |
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166 | fi |
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167 | echo >> "$1" |
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168 | if [ -f "make/${TOOLCHAIN_NAME}.mk" ]; then |
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169 | cat "make/${TOOLCHAIN_NAME}.mk" >> "$1" |
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170 | else |
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171 | echo "!!! WARNING !!! Default toolchain flags not found. Configuration might be incomplete." |
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172 | fi |
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173 | } |