Mercurial > flash_v2
annotate host/infra/acinclude.m4 @ 136:a9ac27ec7abc ecos-sw-2000-11-17
Merge from eCos master repository on 2000-11-17-18:24:25-GMT
| author | jlarmour |
|---|---|
| date | Fri, 17 Nov 2000 23:16:43 +0000 |
| parents | 6ed91473a1cd |
| children | f58bc1b2c2bc |
| rev | line source |
|---|---|
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1 dnl Process this file with aclocal to get an aclocal.m4 file. Then |
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2 dnl process that with autoconf. |
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3 dnl ==================================================================== |
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4 dnl |
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5 dnl acinclude.m4 |
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6 dnl |
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7 dnl Host side implementation of the eCos infrastructure. |
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8 dnl |
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9 dnl ==================================================================== |
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10 dnl####COPYRIGHTBEGIN#### |
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11 dnl |
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12 dnl ---------------------------------------------------------------------------- |
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13 dnl Copyright (C) 1998, 1999, 2000 Red Hat, Inc. |
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14 dnl |
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15 dnl This file is part of the eCos host tools. |
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16 dnl |
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17 dnl This program is free software; you can redistribute it and/or modify it |
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18 dnl under the terms of the GNU General Public License as published by the Free |
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19 dnl Software Foundation; either version 2 of the License, or (at your option) |
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20 dnl any later version. |
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21 dnl |
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22 dnl This program is distributed in the hope that it will be useful, but WITHOUT |
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23 dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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24 dnl FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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25 dnl more details. |
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26 dnl |
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27 dnl You should have received a copy of the GNU General Public License along with |
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28 dnl this program; if not, write to the Free Software Foundation, Inc., |
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29 dnl 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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30 dnl |
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31 dnl ---------------------------------------------------------------------------- |
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32 dnl |
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33 dnl####COPYRIGHTEND#### |
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34 dnl ==================================================================== |
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35 dnl#####DESCRIPTIONBEGIN#### |
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36 dnl |
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37 dnl Author(s): bartv |
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38 dnl Contact(s): bartv |
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39 dnl Date: 1998/07/14 |
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40 dnl Version: 0.01 |
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41 dnl |
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42 dnl####DESCRIPTIONEND#### |
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43 dnl ==================================================================== |
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44 |
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45 dnl Access shared macros. |
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46 dnl AM_CONDITIONAL needs to be mentioned here or else aclocal does not |
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47 dnl incorporate the macro into aclocal.m4 |
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48 sinclude(../acinclude.m4) |
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49 |
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50 |
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51 dnl ==================================================================== |
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52 dnl Look for a 64 bit data type. It is necessary to check both C and C++ |
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53 dnl compilers. |
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54 dnl |
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55 dnl A better implementation would check whether or not AC_PROG_CC and |
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56 dnl AC_PROG_CXX have been invoked and only test the appropriate |
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57 dnl compiler. |
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58 dnl |
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59 dnl When cross-compiling, default to long long on the assumption that |
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60 dnl gcc/g++ must be used and long long is likely to be the 64 bit data |
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61 dnl type. This is not guaranteed, but sufficiently likely to meet |
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62 dnl the requirements for the time being. The CHECK_SIZEOF() macro |
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63 dnl might be another way to get the desired information. |
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64 |
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65 AC_DEFUN(CYG_AC_TYPE_64bit, [ |
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66 AC_REQUIRE([AC_PROG_CC]) |
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67 AC_REQUIRE([AC_PROG_CXX]) |
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68 |
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69 AC_CACHE_CHECK("for a 64 bit data type",cyg_ac_cv_type_64bit,[ |
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70 for type in "long" "long long" "__int64"; do |
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71 AC_LANG_SAVE |
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72 AC_LANG_C |
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73 AC_TRY_RUN([ |
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74 main() { |
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75 return 8 != sizeof($type); |
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76 } |
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77 ],ctype_64bit=$type,ctype_64bit="unknown",ctype_64bit="long long") |
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78 AC_LANG_CPLUSPLUS |
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79 AC_TRY_RUN([ |
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80 int main(int argc, char ** argv) { |
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81 return 8 != sizeof($type); |
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82 } |
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83 ],cxxtype_64bit=$type,cxxtype_64bit="unknown",cxxtype_64bit="long long") |
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84 AC_LANG_RESTORE |
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85 if test "${ctype_64bit}" = "${type}" -a "${cxxtype_64bit}" = "${type}"; then |
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86 cyg_ac_cv_type_64bit="${type}" |
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87 break |
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88 fi |
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89 done |
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90 ]) |
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91 if test "${cyg_ac_cv_type_64bit}" = ""; then |
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92 AC_MSG_ERROR(Unable to figure out how to do 64 bit arithmetic) |
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93 else |
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94 if test "${cyg_ac_cv_type_64bit}" != "long long"; then |
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95 AC_DEFINE_UNQUOTED(cyg_halint64,${cyg_ac_cv_type_64bit}) |
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96 AC_DEFINE_UNQUOTED(cyg_halcount64,${cyg_ac_cv_type_64bit}) |
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97 fi |
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98 fi |
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99 ]) |
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100 |
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101 dnl ==================================================================== |
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102 dnl Check that both the C and C++ compilers support __PRETTY_FUNCTION__ |
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103 |
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104 AC_DEFUN(CYG_AC_C_PRETTY_FUNCTION,[ |
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105 AC_REQUIRE([AC_PROG_CC]) |
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106 AC_REQUIRE([AC_PROG_CXX]) |
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107 |
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108 AC_CACHE_CHECK("for __PRETTY_FUNCTION__ support",cyg_ac_cv_c_pretty_function,[ |
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109 AC_LANG_SAVE |
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110 AC_LANG_C |
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111 AC_TRY_LINK( |
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112 [#include <stdio.h>], |
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113 [puts(__PRETTY_FUNCTION__);], |
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114 c_ok="yes", |
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115 c_ok="no" |
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116 ) |
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117 AC_LANG_CPLUSPLUS |
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118 AC_TRY_LINK( |
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119 [#include <cstdio>], |
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120 [puts(__PRETTY_FUNCTION__);], |
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121 cxx_ok="yes", |
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122 cxx_ok="no" |
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123 ) |
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124 AC_LANG_RESTORE |
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125 if test "${c_ok}" = "yes" -a "${cxx_ok}" = "yes"; then |
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126 cyg_ac_cv_c_pretty_function="yes" |
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127 fi |
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128 ]) |
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129 if test "${cyg_ac_cv_c_pretty_function}" = "yes"; then |
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130 AC_DEFINE(CYGDBG_INFRA_DEBUG_FUNCTION_PSEUDOMACRO) |
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131 fi |
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132 ]) |
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133 |
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134 |
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135 |
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136 |
