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1
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2 # Copyright (C) Igor Sysoev
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660
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3 # Copyright (C) Nginx, Inc.
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4
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4
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5
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50
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6 # gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2
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46
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7 # 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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8 # 4.0.0, 4.0.1, 4.1.0
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9
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10
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11 NGX_GCC_VER=`$CC -v 2>&1 | grep 'gcc version' 2>&1 \
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12 | sed -e 's/^.* version \(.*\)/\1/'`
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13
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14 echo " + gcc version: $NGX_GCC_VER"
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15
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106
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16 have=NGX_COMPILER value="\"gcc $NGX_GCC_VER\"" . auto/define
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17
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18
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19 # Solaris 7's /usr/ccs/bin/as does not support "-pipe"
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20
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21 CC_TEST_FLAGS="-pipe"
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22
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126
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23 ngx_feature="gcc -pipe switch"
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24 ngx_feature_name=
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25 ngx_feature_run=no
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26 ngx_feature_incs=
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27 ngx_feature_path=
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28 ngx_feature_libs=
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29 ngx_feature_test=
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30 . auto/feature
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31
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32 CC_TEST_FLAGS=
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33
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34 if [ $ngx_found = yes ]; then
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35 PIPE="-pipe"
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36 fi
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37
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110
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38
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130
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39 case "$NGX_MACHINE" in
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110
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40
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242
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41 sun4u | sun4v | sparc | sparc64 )
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112
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42 # "-mcpu=v9" enables the "casa" assembler instruction
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110
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43 CFLAGS="$CFLAGS -mcpu=v9"
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44 ;;
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45
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46 esac
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47
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48
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49 # optimizations
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50
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36
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51 #NGX_GCC_OPT="-O2"
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52 #NGX_GCC_OPT="-Os"
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53 NGX_GCC_OPT="-O"
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54
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55 #CFLAGS="$CFLAGS -fomit-frame-pointer"
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56
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57 case $CPU in
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58 pentium)
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59 # optimize for Pentium and Athlon
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60 CPU_OPT="-march=pentium"
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138
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61 NGX_CPU_CACHE_LINE=32
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62 ;;
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63
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64 pentiumpro | pentium3)
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65 # optimize for Pentium Pro, Pentium II and Pentium III
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66 CPU_OPT="-march=pentiumpro"
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138
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67 NGX_CPU_CACHE_LINE=32
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68 ;;
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69
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70 pentium4)
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71 # optimize for Pentium 4, gcc 3.x
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72 CPU_OPT="-march=pentium4"
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73 NGX_CPU_CACHE_LINE=128
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74 ;;
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75
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70
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76 athlon)
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77 # optimize for Athlon, gcc 3.x
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78 CPU_OPT="-march=athlon"
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138
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79 NGX_CPU_CACHE_LINE=64
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70
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80 ;;
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81
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82 opteron)
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83 # optimize for Opteron, gcc 3.x
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84 CPU_OPT="-march=opteron"
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85 NGX_CPU_CACHE_LINE=64
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58
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86 ;;
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87
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130
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88 sparc32)
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89 # build 32-bit UltraSparc binary
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90 CPU_OPT="-m32"
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91 CORE_LINK="$CORE_LINK -m32"
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92 NGX_CPU_CACHE_LINE=64
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130
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93 ;;
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94
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95 sparc64)
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96 # build 64-bit UltraSparc binary
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97 CPU_OPT="-m64"
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98 CORE_LINK="$CORE_LINK -m64"
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99 NGX_CPU_CACHE_LINE=64
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4
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100 ;;
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101
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102 ppc64)
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103 # build 64-bit PowerPC binary
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104 CPU_OPT="-m64"
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105 CPU_OPT="$CPU_OPT -falign-functions=32 -falign-labels=32"
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106 CPU_OPT="$CPU_OPT -falign-loops=32 -falign-jumps=32"
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107 CORE_LINK="$CORE_LINK -m64"
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108 NGX_CPU_CACHE_LINE=128
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109 ;;
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110
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111 esac
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112
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554
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113 CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
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114
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115 case "$NGX_GCC_VER" in
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116 2.7*)
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117 # batch build
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118 CPU_OPT=
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119 ;;
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120 esac
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4
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121
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122
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123 CFLAGS="$CFLAGS $PIPE $CPU_OPT"
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124
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125 if [ ".$PCRE_OPT" = "." ]; then
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126 PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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127 else
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128 PCRE_OPT="$PCRE_OPT $PIPE"
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129 fi
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130
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131 if [ ".$MD5_OPT" = "." ]; then
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132 MD5_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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133 else
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134 MD5_OPT="$MD5_OPT $PIPE"
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135 fi
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136
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137 if [ ".$ZLIB_OPT" = "." ]; then
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138 ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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139 else
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140 ZLIB_OPT="$ZLIB_OPT $PIPE"
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141 fi
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142
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143
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144 # warnings
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145
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36
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146 # -W requires at least -O
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274
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147 CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W"
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36
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148
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4
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149 CFLAGS="$CFLAGS -Wall -Wpointer-arith"
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126
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150 #CFLAGS="$CFLAGS -Wconversion"
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151 #CFLAGS="$CFLAGS -Winline"
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682
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152 #CFLAGS="$CFLAGS -Wmissing-prototypes"
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4
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153
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154
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155 case "$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="$CFLAGS -Wno-unused-parameter"
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482
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159 # 4.2.1 shows the warning in wrong places
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160 #CFLAGS="$CFLAGS -Wunreachable-code"
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161 ;;
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162
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163 *)
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164 # we have a lot of the unused function arguments
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165 CFLAGS="$CFLAGS -Wno-unused"
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166 ;;
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167 esac
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168
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4
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169
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170 # stop on warning
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171 CFLAGS="$CFLAGS -Werror"
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172
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173 # debug
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174 CFLAGS="$CFLAGS -g"
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175
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176 # DragonFly's gcc3 generates DWARF
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177 #CFLAGS="$CFLAGS -g -gstabs"
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178
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179 if [ ".$CPP" = "." ]; then
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180 CPP="$CC -E"
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181 fi
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