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annotate auto/cc/clang @ 5539:c86dd32573c0

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Configure: enabled -Werror for clang. Modern clang versions seem to no longer produce warnings for system headers on Linux (at least clang 3.3 works), hence the change. For older versions --with-cc-opt="-Wno-error" can be used as a workaround.
author Ruslan Ermilov <ru@nginx.com>
date Tue, 28 Jan 2014 00:31:31 +0400
parents fedf777c6b24
children 80bd391c90d1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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f1daa0356a1d Configure: fixed detection of newer Apple clang compilers.
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8 NGX_CLANG_VER=`$CC -v 2>&1 | grep '\(clang\|LLVM\) version' 2>&1 \
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9 | sed -e 's/^.* 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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80
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81
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82 # warnings
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83
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84 CFLAGS="$CFLAGS $NGX_CLANG_OPT -Wall -Wextra -Wpointer-arith"
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fedf777c6b24 Configure: enable -Wconditional-uninitialized with clang.
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85 CFLAGS="$CFLAGS -Wconditional-uninitialized"
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86 #CFLAGS="$CFLAGS -Wmissing-prototypes"
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87
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88 # we have a lot of unused function arguments
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89 CFLAGS="$CFLAGS -Wno-unused-parameter"
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90
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91 # stop on warning
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c86dd32573c0 Configure: enabled -Werror for clang.
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92 CFLAGS="$CFLAGS -Werror"
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93
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94 # debug
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95 CFLAGS="$CFLAGS -g"
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96
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97 if [ ".$CPP" = "." ]; then
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98 CPP="$CC -E"
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99 fi