1 | #! /bin/sh |
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2 | # Install modified versions of certain problematic Irix include files. |
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3 | # Copyright (C) 1997 Free Software Foundation, Inc. |
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4 | # Contributed by Brendan Kehoe (brendan@cygnus.com). |
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5 | # |
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6 | # This file is part of GNU CC. |
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7 | # |
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8 | # GNU CC is free software; you can redistribute it and/or modify |
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9 | # it under the terms of the GNU General Public License as published by |
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10 | # the Free Software Foundation; either version 2, or (at your option) |
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11 | # any later version. |
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12 | # |
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13 | # GNU CC is distributed in the hope that it will be useful, |
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14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | # GNU General Public License for more details. |
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17 | # |
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18 | # You should have received a copy of the GNU General Public License |
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19 | # along with GNU CC; see the file COPYING. If not, write to |
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20 | # the Free Software Foundation, 59 Temple Place - Suite 330, |
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21 | # Boston, MA 02111-1307, USA. |
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22 | # |
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23 | # See README-fixinc for more information. |
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24 | |
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25 | # Directory containing the original header files. |
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26 | INPUT=${2-${INPUT-/usr/include}} |
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27 | |
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28 | # Fail if no arg to specify a directory for the output. |
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29 | if [ x$1 = x ] |
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30 | then echo fixincludes: no output directory specified |
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31 | exit 1 |
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32 | fi |
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33 | |
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34 | # Directory in which to store the results. |
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35 | LIB=${1?"fixincludes: output directory not specified"} |
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36 | |
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37 | # Make sure it exists. |
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38 | if [ ! -d $LIB ]; then |
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39 | mkdir $LIB || exit 1 |
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40 | fi |
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41 | |
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42 | ORIG_DIR=`pwd` |
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43 | |
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44 | # Make LIB absolute if it is relative. |
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45 | # Don't do this if not necessary, since may screw up automounters. |
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46 | case $LIB in |
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47 | /*) |
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48 | ;; |
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49 | *) |
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50 | LIB=$ORIG_DIR/$LIB |
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51 | ;; |
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52 | esac |
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53 | |
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54 | echo 'Building fixincludes in ' ${LIB} |
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55 | |
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56 | # |
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57 | # Note: For Irix, we deliberately don't try to create the directory trees, |
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58 | # since we only modify math.h, limits.h and unistd.h. If we |
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59 | # ADD ANY OTHERS, the "Making directories:" and symlinks code from |
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60 | # fixinc.svr4 may have to go back in. |
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61 | |
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62 | # The Irix math.h defines struct exception, which conflicts with |
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63 | # the class exception defined in the C++ file std/stdexcept.h. We |
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64 | # redefine it to __math_exception. This is not a great fix, but I |
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65 | # haven't been able to think of anything better. |
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66 | file=math.h |
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67 | base=`basename $file` |
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68 | if [ -r ${LIB}/$file ]; then |
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69 | file_to_fix=${LIB}/$file |
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70 | else |
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71 | if [ -r ${INPUT}/$file ]; then |
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72 | file_to_fix=${INPUT}/$file |
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73 | else |
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74 | file_to_fix="" |
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75 | fi |
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76 | fi |
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77 | if [ \! -z "$file_to_fix" ]; then |
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78 | echo Checking $file_to_fix |
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79 | sed -e '/struct exception/i\ |
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80 | #ifdef __cplusplus\ |
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81 | #define exception __math_exception\ |
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82 | #endif'\ |
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83 | -e '/struct exception/a\ |
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84 | #ifdef __cplusplus\ |
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85 | #undef exception\ |
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86 | #endif' $file_to_fix > /tmp/$base |
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87 | if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \ |
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88 | true |
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89 | else |
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90 | echo Fixed $file_to_fix |
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91 | rm -f ${LIB}/$file |
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92 | cp /tmp/$base ${LIB}/$file |
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93 | chmod a+r ${LIB}/$file |
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94 | fi |
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95 | rm -f /tmp/$base |
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96 | fi |
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97 | |
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98 | # In limits.h, put #ifndefs around things that are supposed to be defined |
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99 | # in float.h to avoid redefinition errors if float.h is included first. |
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100 | |
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101 | file=limits.h |
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102 | base=`basename $file` |
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103 | if [ -r ${LIB}/$file ]; then |
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104 | file_to_fix=${LIB}/$file |
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105 | else |
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106 | if [ -r ${INPUT}/$file ]; then |
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107 | file_to_fix=${INPUT}/$file |
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108 | else |
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109 | file_to_fix="" |
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110 | fi |
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111 | fi |
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112 | if [ \! -z "$file_to_fix" ]; then |
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113 | echo Checking $file_to_fix |
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114 | sed -e '/[ ]FLT_MIN[ ]/i\ |
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115 | #ifndef FLT_MIN |
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116 | '\ |
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117 | -e '/[ ]FLT_MIN[ ]/a\ |
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118 | #endif |
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119 | '\ |
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120 | -e '/[ ]FLT_MAX[ ]/i\ |
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121 | #ifndef FLT_MAX |
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122 | '\ |
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123 | -e '/[ ]FLT_MAX[ ]/a\ |
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124 | #endif |
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125 | '\ |
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126 | -e '/[ ]FLT_DIG[ ]/i\ |
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127 | #ifndef FLT_DIG |
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128 | '\ |
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129 | -e '/[ ]FLT_DIG[ ]/a\ |
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130 | #endif |
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131 | '\ |
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132 | -e '/[ ]DBL_MIN[ ]/i\ |
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133 | #ifndef DBL_MIN |
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134 | '\ |
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135 | -e '/[ ]DBL_MIN[ ]/a\ |
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136 | #endif |
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137 | '\ |
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138 | -e '/[ ]DBL_MAX[ ]/i\ |
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139 | #ifndef DBL_MAX |
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140 | '\ |
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141 | -e '/[ ]DBL_MAX[ ]/a\ |
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142 | #endif |
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143 | '\ |
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144 | -e '/[ ]DBL_DIG[ ]/i\ |
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145 | #ifndef DBL_DIG |
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146 | '\ |
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147 | -e '/[ ]DBL_DIG[ ]/a\ |
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148 | #endif |
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149 | ' $file_to_fix > /tmp/$base |
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150 | if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \ |
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151 | true |
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152 | else |
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153 | echo Fixed $file_to_fix |
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154 | rm -f ${LIB}/$file |
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155 | cp /tmp/$base ${LIB}/$file |
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156 | chmod a+r ${LIB}/$file |
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157 | fi |
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158 | rm -f /tmp/$base |
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159 | fi |
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160 | |
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161 | # The Irix unistd.h will introduce a call to __vfork in its libc, but the |
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162 | # function is never actually prototyped. |
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163 | file=unistd.h |
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164 | base=`basename $file` |
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165 | if [ -r ${LIB}/$file ]; then |
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166 | file_to_fix=${LIB}/$file |
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167 | else |
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168 | if [ -r ${INPUT}/$file ]; then |
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169 | file_to_fix=${INPUT}/$file |
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170 | else |
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171 | file_to_fix="" |
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172 | fi |
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173 | fi |
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174 | if [ \! -z "$file_to_fix" ]; then |
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175 | echo Checking $file_to_fix |
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176 | sed -e '/__vfork/i\ |
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177 | extern pid_t __vfork(void);'\ |
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178 | $file_to_fix > /tmp/$base |
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179 | if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \ |
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180 | true |
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181 | else |
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182 | echo Fixed $file_to_fix |
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183 | rm -f ${LIB}/$file |
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184 | cp /tmp/$base ${LIB}/$file |
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185 | chmod a+r ${LIB}/$file |
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186 | fi |
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187 | rm -f /tmp/$base |
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188 | fi |
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189 | |
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190 | exit 0 |
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