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2 # Copyright (C) Igor Sysoev
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3
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4
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50
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5 # gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2
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46
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6 # 3.0.4, 3.1.1, 3.2.3, 3.3.2, 3.3.3, 3.3.4, 3.4.0, 3.4.2
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70
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7 # 4.0.0, 4.0.1, 4.1.0
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50
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8
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9
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10 NGX_GCC_VER=`$CC -v 2>&1 | grep 'gcc version' 2>&1 \
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11 | sed -e 's/^.* version \(.*\)/\1/'`
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12
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13 echo " + gcc version: $NGX_GCC_VER"
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14
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106
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15 have=NGX_COMPILER value="\"gcc $NGX_GCC_VER\"" . auto/define
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16
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17
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18 # Solaris 7's /usr/ccs/bin/as does not support "-pipe"
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19
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20 CC_TEST_FLAGS="-pipe"
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21
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126
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22 ngx_feature="gcc -pipe switch"
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23 ngx_feature_name=
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24 ngx_feature_run=no
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25 ngx_feature_incs=
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258
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26 ngx_feature_path=
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27 ngx_feature_libs=
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28 ngx_feature_test=
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29 . auto/feature
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30
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31 CC_TEST_FLAGS=
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32
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33 if [ $ngx_found = yes ]; then
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34 PIPE="-pipe"
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35 fi
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36
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110
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37
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130
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38 case "$NGX_MACHINE" in
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110
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39
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242
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40 sun4u | sun4v | sparc | sparc64 )
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112
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41 # "-mcpu=v9" enables the "casa" assembler instruction
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110
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42 CFLAGS="$CFLAGS -mcpu=v9"
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43 ;;
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44
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45 esac
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46
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47
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48 # optimizations
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49
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50 #NGX_GCC_OPT="-O2"
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51 #NGX_GCC_OPT="-Os"
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52 NGX_GCC_OPT="-O"
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53
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54 CFLAGS="$CFLAGS $NGX_GCC_OPT"
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55
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56 #CFLAGS="$CFLAGS -fomit-frame-pointer"
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57
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58 case $CPU in
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59 pentium)
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60 # optimize for Pentium and Athlon
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61 CPU_OPT="-march=pentium"
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62 NGX_CPU_CACHE_LINE=32
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63 ;;
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64
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65 pentiumpro | pentium3)
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66 # optimize for Pentium Pro, Pentium II and Pentium III
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67 CPU_OPT="-march=pentiumpro"
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68 NGX_CPU_CACHE_LINE=32
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69 ;;
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70
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71 pentium4)
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72 # optimize for Pentium 4, gcc 3.x
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73 CPU_OPT="-march=pentium4"
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74 NGX_CPU_CACHE_LINE=128
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4
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75 ;;
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76
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77 athlon)
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78 # optimize for Athlon, gcc 3.x
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79 CPU_OPT="-march=athlon"
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80 NGX_CPU_CACHE_LINE=64
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81 ;;
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82
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83 opteron)
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84 # optimize for Opteron, gcc 3.x
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85 CPU_OPT="-march=opteron"
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86 NGX_CPU_CACHE_LINE=64
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58
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87 ;;
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88
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130
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89 sparc32)
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90 # build 32-bit UltraSparc binary
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91 CPU_OPT="-m32"
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92 CORE_LINK="$CORE_LINK -m32"
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93 NGX_CPU_CACHE_LINE=64
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130
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94 ;;
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95
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96 sparc64)
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97 # build 64-bit UltraSparc binary
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98 CPU_OPT="-m64"
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99 CORE_LINK="$CORE_LINK -m64"
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100 NGX_CPU_CACHE_LINE=64
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101 ;;
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102
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162
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103 ppc64)
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104 # build 64-bit PowerPC binary
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105 CPU_OPT="-m64"
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106 CPU_OPT="$CPU_OPT -falign-functions=32 -falign-labels=32"
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107 CPU_OPT="$CPU_OPT -falign-loops=32 -falign-jumps=32"
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108 CORE_LINK="$CORE_LINK -m64"
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109 NGX_CPU_CACHE_LINE=128
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110 ;;
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111
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112 esac
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113
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554
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114 CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
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115
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116 case "$NGX_GCC_VER" in
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117 2.7*)
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118 # batch build
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119 CPU_OPT=
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120 ;;
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121 esac
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4
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122
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123
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124 CFLAGS="$CFLAGS $PIPE $CPU_OPT"
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125
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126 if [ ".$PCRE_OPT" = "." ]; then
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127 PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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128 else
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129 PCRE_OPT="$PCRE_OPT $PIPE"
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130 fi
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131
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132 if [ ".$MD5_OPT" = "." ]; then
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133 MD5_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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134 else
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135 MD5_OPT="$MD5_OPT $PIPE"
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136 fi
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137
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138 if [ ".$ZLIB_OPT" = "." ]; then
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139 ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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140 else
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141 ZLIB_OPT="$ZLIB_OPT $PIPE"
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142 fi
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143
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144
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145 # warnings
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146
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36
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147 # -W requires at least -O
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274
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148 CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W"
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36
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149
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150 CFLAGS="$CFLAGS -Wall -Wpointer-arith"
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126
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151 #CFLAGS="$CFLAGS -Wconversion"
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4
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152 #CFLAGS="$CFLAGS -Winline"
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153
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50
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154
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155 case "$NGX_GCC_VER" in
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156 3.* | 4.* )
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157 # we have a lot of the unused function arguments
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158 CFLAGS="$CFLAGS -Wno-unused-parameter"
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482
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159 CFLAGS="$CFLAGS -Wunused-function"
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112
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160 CFLAGS="$CFLAGS -Wunused-variable"
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161 CFLAGS="$CFLAGS -Wunused-value"
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482
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162 # 4.2.1 shows the warning in wrong places
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163 #CFLAGS="$CFLAGS -Wunreachable-code"
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164 ;;
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165
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166 *)
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167 # we have a lot of the unused function arguments
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168 CFLAGS="$CFLAGS -Wno-unused"
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169 ;;
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170 esac
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171
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4
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172
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173 # stop on warning
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174 CFLAGS="$CFLAGS -Werror"
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175
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176 # debug
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177 CFLAGS="$CFLAGS -g"
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178
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179 # DragonFly's gcc3 generates DWARF
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180 #CFLAGS="$CFLAGS -g -gstabs"
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181
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182 if [ ".$CPP" = "." ]; then
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183 CPP="$CC -E"
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184 fi
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