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455
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1
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2 # Copyright (C) Igor Sysoev
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3
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4
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501
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5 # gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2
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497
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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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521
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7 # 4.0.0, 4.0.1, 4.1.0
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501
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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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15
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16 # Solaris 7's /usr/ccs/bin/as does not support "-pipe"
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17
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18 CC_TEST_FLAGS="-pipe"
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19
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20 ngx_feature="gcc -pipe switch"
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21 ngx_feature_name=
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22 ngx_feature_run=no
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23 ngx_feature_incs=
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24 ngx_feature_libs=
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25 ngx_feature_test=
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26 . auto/feature
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27
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28 CC_TEST_FLAGS=
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29
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30 if [ $ngx_found = yes ]; then
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31 PIPE="-pipe"
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32 fi
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33
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34 # optimizations
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35
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487
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36 #NGX_GCC_OPT="-O2"
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37 #NGX_GCC_OPT="-Os"
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38 NGX_GCC_OPT="-O"
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39
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40 CFLAGS="$CFLAGS $NGX_GCC_OPT"
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41
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42 #CFLAGS="$CFLAGS -fomit-frame-pointer"
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43
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44 case $CPU in
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45 pentium)
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46 # optimize for Pentium and Athlon
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47 CPU_OPT="-march=pentium"
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48 ;;
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49
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50 pentiumpro)
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51 # optimize for Pentium Pro, Pentium II and Pentium III
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52 CPU_OPT="-march=pentiumpro"
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53 ;;
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54
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55 pentium4)
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56 # optimize for Pentium 4, gcc 3.x
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57 CPU_OPT="-march=pentium4"
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58 ;;
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59
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521
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60 athlon)
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61 # optimize for Athlon, gcc 3.x
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62 CPU_OPT="-march=athlon"
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63 ;;
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64
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509
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65 opteron)
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66 # optimize for Opteron, gcc 3.x
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67 CPU_OPT="-march=opteron"
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68 ;;
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69
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70 sparc64)
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71 # build 64-bit UltraSparc binary
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72 CPU_OPT="-m64"
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73 CORE_LINK="$CORE_LINK -m64"
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74 CC_AUX_FLAGS="$CC_AUX_FLAGS -m64"
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75 ;;
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76
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77 esac
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78
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79
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501
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80 case "$NGX_GCC_VER" in
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81 2.7*)
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82 # batch build
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83 CPU_OPT=
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84 ;;
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85 esac
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86
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87
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88 CFLAGS="$CFLAGS $PIPE $CPU_OPT"
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89
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90 if [ ".$PCRE_OPT" = "." ]; then
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91 PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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92 else
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93 PCRE_OPT="$PCRE_OPT $PIPE"
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94 fi
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95
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96 if [ ".$MD5_OPT" = "." ]; then
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97 MD5_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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98 else
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99 MD5_OPT="$MD5_OPT $PIPE"
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100 fi
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101
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102 if [ ".$ZLIB_OPT" = "." ]; then
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103 ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
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104 else
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105 ZLIB_OPT="$ZLIB_OPT $PIPE"
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106 fi
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107
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108
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109 # warnings
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110
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111 # -W requires at least -O
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112 CFLAGS="$CFLAGS ${NGX_GCC_OPT:-O} -W"
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113
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114 CFLAGS="$CFLAGS -Wall -Wpointer-arith"
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115 #CFLAGS="$CFLAGS -Wconversion"
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116 #CFLAGS="$CFLAGS -Winline"
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117
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118
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119 case "$NGX_GCC_VER" in
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120 3.* | 4.* )
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121 # we have a lot of the unused function arguments
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122 CFLAGS="$CFLAGS -Wno-unused-parameter"
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123 CFLAGS="$CFLAGS -Wno-unused-function"
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124 #CFLAGS="$CFLAGS -Wunreachable-code"
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125 ;;
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126
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127 *)
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128 # we have a lot of the unused function arguments
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129 CFLAGS="$CFLAGS -Wno-unused"
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130 ;;
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131 esac
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132
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133
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134 # stop on warning
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135 CFLAGS="$CFLAGS -Werror"
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136
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137 # debug
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138 CFLAGS="$CFLAGS -g"
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139
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140 # DragonFly's gcc3 generates DWARF
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141 #CFLAGS="$CFLAGS -g -gstabs"
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142
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143 if [ ".$CPP" = "." ]; then
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144 CPP="$CC -E"
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145 fi
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