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1 # This is the target specific configuration file. This is invoked by the
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2 # autoconf generated configure script. Putting it in a separate shell file
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3 # lets us skip running autoconf when modifying target specific information.
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4
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5 # This file switches on the shell variable ${target}, and sets the
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6 # following shell variables:
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7 # config_path An ordered list of directories to search for
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8 # sources and headers. This is relative to the
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9 # config subdirectory of the source tree.
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10 # XCFLAGS Add extra compile flags to use.
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11 # XLDFLAGS Add extra link flags to use.
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12
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13 # Optimize TLS usage by avoiding the overhead of dynamic allocation.
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14 if test $gcc_cv_have_tls = yes ; then
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15 case "${target}" in
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16
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17 *-*-linux*)
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18 XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
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19 ;;
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20 esac
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21 fi
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22
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23 # Since we require POSIX threads, assume a POSIX system by default.
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24 config_path="posix"
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25
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26 # Check for futex enabled all at once.
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27 if test $enable_linux_futex = yes; then
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28 case "${target}" in
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29
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30 alpha*-*-linux*)
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31 config_path="linux/alpha linux posix"
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32 ;;
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33
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34 ia64*-*-linux*)
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35 config_path="linux/ia64 linux posix"
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36 ;;
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37
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38 mips*-*-linux*)
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39 config_path="linux/mips linux posix"
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40 ;;
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41
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42 powerpc*-*-linux*)
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43 config_path="linux/powerpc linux posix"
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44 ;;
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45
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46 s390*-*-linux*)
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47 config_path="linux/s390 linux posix"
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48 ;;
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49
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50 # Note that bare i386 is not included here. We need cmpxchg.
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51 i[456]86-*-linux*)
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52 config_path="linux/x86 linux posix"
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53 case " ${CC} ${CFLAGS} " in
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54 *" -m64 "*)
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55 ;;
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56 *)
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57 if test -z "$with_arch"; then
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58 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
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59 fi
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60 esac
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61 ;;
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62
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63 # Similar jiggery-pokery for x86_64 multilibs, except here we
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64 # can't rely on the --with-arch configure option, since that
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65 # applies to the 64-bit side.
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66 x86_64-*-linux*)
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67 config_path="linux/x86 linux posix"
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68 case " ${CC} ${CFLAGS} " in
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69 *" -m32 "*)
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70 XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
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71 ;;
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72 esac
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73 ;;
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74
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75 # Note that sparcv7 and sparcv8 is not included here. We need cas.
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76 sparcv9-*-linux* | sparc64-*-linux*)
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77 echo "int i;" > conftestx.c
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78 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
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79 config_path="linux/sparc linux posix"
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80 case "`/usr/bin/file conftestx.o`" in
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81 *32-bit*)
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82 case " ${CC} ${CFLAGS}" in
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83 *" -mcpu=ultrasparc"*)
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84 ;;
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85 *)
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86 XCFLAGS="${XCFLAGS} -mcpu=v9"
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87 ;;
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88 esac
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89 ;;
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90 esac
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91 fi
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92 rm -f conftestx.c conftestx.o
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93 ;;
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94 esac
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95 fi
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96
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97 # Other system configury
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98 case "${target}" in
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99
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100 *-*-hpux11*)
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101 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
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102 XLDFLAGS="${XLDFLAGS} -lrt"
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103 ;;
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104
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105 *-*-mingw32*)
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106 config_path="mingw32 posix"
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107 ;;
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108
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109 *-*-solaris2.[56]*)
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110 config_path="posix95 posix"
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111 XLDFLAGS="${XLDFLAGS} -lposix4"
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112 ;;
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113
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114 *-*-darwin*)
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115 config_path="bsd posix"
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116 ;;
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117
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118 *)
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119 ;;
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120
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121 esac
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