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annotate auto/cc/clang @ 5106:afee87b8190a

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SSL: Next Protocol Negotiation extension support. Not only this is useful for the upcoming SPDY support, but it can also help to improve HTTPS performance by enabling TLS False Start in Chrome/Chromium browsers [1]. So, we always enable NPN for HTTPS if it is supported by OpenSSL. [1] http://www.imperialviolet.org/2012/04/11/falsestart.html
author Valentin Bartenev <vbart@nginx.com>
date Thu, 07 Mar 2013 18:21:28 +0000
parents 182aee3b1bf5
children f1daa0356a1d
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1
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2 # Copyright (C) Nginx, Inc.
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3
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4
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5 # clang
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6
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7
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8 NGX_CLANG_VER=`$CC -v 2>&1 | grep 'clang version' 2>&1 \
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9 | sed -e 's/^.*clang version \(.*\)/\1/'`
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10
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11 echo " + clang version: $NGX_CLANG_VER"
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12
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13 have=NGX_COMPILER value="\"clang $NGX_CLANG_VER\"" . auto/define
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14
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15
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16 CC_TEST_FLAGS="-pipe"
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17
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18
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19 # optimizations
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20
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21 #NGX_CLANG_OPT="-O2"
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22 #NGX_CLANG_OPT="-Oz"
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23 NGX_CLANG_OPT="-O"
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24
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25 case $CPU in
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26 pentium)
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27 # optimize for Pentium
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28 CPU_OPT="-march=pentium"
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29 NGX_CPU_CACHE_LINE=32
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30 ;;
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31
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32 pentiumpro | pentium3)
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33 # optimize for Pentium Pro, Pentium II and Pentium III
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34 CPU_OPT="-march=pentiumpro"
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35 NGX_CPU_CACHE_LINE=32
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36 ;;
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37
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38 pentium4)
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39 # optimize for Pentium 4
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40 CPU_OPT="-march=pentium4"
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41 NGX_CPU_CACHE_LINE=128
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42 ;;
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43
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44 athlon)
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45 # optimize for Athlon
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46 CPU_OPT="-march=athlon"
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47 NGX_CPU_CACHE_LINE=64
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48 ;;
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49
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50 opteron)
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51 # optimize for Opteron
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52 CPU_OPT="-march=opteron"
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53 NGX_CPU_CACHE_LINE=64
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54 ;;
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55
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56 esac
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57
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58 CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
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59
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60
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61 CFLAGS="$CFLAGS -pipe $CPU_OPT"
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62
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63 if [ ".$PCRE_OPT" = "." ]; then
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64 PCRE_OPT="-O2 -pipe $CPU_OPT"
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65 else
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66 PCRE_OPT="$PCRE_OPT -pipe"
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67 fi
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68
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69 if [ ".$MD5_OPT" = "." ]; then
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70 MD5_OPT="-O2 -pipe $CPU_OPT"
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71 else
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72 MD5_OPT="$MD5_OPT -pipe"
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73 fi
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74
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75 if [ ".$ZLIB_OPT" = "." ]; then
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76 ZLIB_OPT="-O2 -pipe $CPU_OPT"
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77 else
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78 ZLIB_OPT="$ZLIB_OPT -pipe"
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79 fi
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81
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82 # warnings
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83
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84 CFLAGS="$CFLAGS $NGX_CLANG_OPT -Wall -Wextra -Wpointer-arith"
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85 #CFLAGS="$CFLAGS -Wmissing-prototypes"
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86
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87 # we have a lot of unused function arguments
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88 CFLAGS="$CFLAGS -Wno-unused-parameter"
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89
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90 # stop on warning
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91 #CFLAGS="$CFLAGS -Werror"
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92
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93 # debug
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94 CFLAGS="$CFLAGS -g"
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95
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96 if [ ".$CPP" = "." ]; then
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97 CPP="$CC -E"
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98 fi