gcc/fixinc.irix

   1 #! /bin/sh
   2 # Install modified versions of certain problematic Irix include files.
   3 # If possible, create a wrapper (see fixinc.wrap) instead of copying files.
   4 #
   5 # Copyright (C) 1997 Free Software Foundation, Inc.
   6 # Contributed by Brendan Kehoe (brendan@cygnus.com).
   7 #
   8 # This file is part of GNU CC.
   9 #
  10 # GNU CC is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 2, or (at your option)
  13 # any later version.
  14 #
  15 # GNU CC is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with GNU CC; see the file COPYING.  If not, write to
  22 # the Free Software Foundation, 59 Temple Place - Suite 330,
  23 # Boston, MA 02111-1307, USA.
  24 #
  25 #       See README-fixinc for more information.
  26
  27 # Directory containing the original header files.
  28 INPUT=${2-${INPUT-/usr/include}}
  29
  30 # Fail if no arg to specify a directory for the output.
  31 if [ x$1 = x ]
  32 then echo fixincludes: no output directory specified
  33 exit 1
  34 fi
  35
  36 # Directory in which to store the results.
  37 LIB=${1?"fixincludes: output directory not specified"}
  38
  39 # Make sure it exists.
  40 if [ ! -d $LIB ]; then
  41   mkdir $LIB || exit 1
  42 fi
  43
  44 ORIG_DIR=`pwd`
  45
  46 # Make LIB absolute if it is relative.
  47 # Don't do this if not necessary, since may screw up automounters.
  48 case $LIB in
  49 /*)
  50         ;;
  51 *)
  52         LIB=$ORIG_DIR/$LIB
  53         ;;
  54 esac
  55
  56 echo 'Building fixincludes in ' ${LIB}
  57
  58 #
  59 # Note: For Irix, we deliberately don't try to create the directory trees,
  60 #       since we only modify math.h, limits.h and unistd.h.  If we
  61 #       ADD ANY OTHERS, the "Making directories:" and symlinks code from
  62 #       fixinc.svr4 may have to go back in.
  63
  64 # This math.h fix is copied from fixinc.wrap.  We want to avoid copying
  65 # math.h because both math.h and stdlib.h have a declaration for initstate,
  66 # and this declaration changed between Irix 6.2 and Irix 6.3.  If we copy this
  67 # file, then the same toolchain can't be shared between 6.2 and 6.3+.
  68
  69 # Some math.h files define struct exception, which conflicts with
  70 # the class exception defined in the C++ file std/stdexcept.h.  We
  71 # redefine it to __math_exception.  This is not a great fix, but I
  72 # haven't been able to think of anything better.
  73 file=math.h
  74 if [ -r $INPUT/$file ]; then
  75   echo Checking $INPUT/$file
  76   if grep 'struct exception' $INPUT/$file >/dev/null
  77   then
  78     echo Fixed $file
  79     rm -f $LIB/$file
  80     cat <<'__EOF__' >$LIB/$file
  81 #ifndef _MATH_H_WRAPPER
  82 #ifdef __cplusplus
  83 # define exception __math_exception
  84 #endif
  85 #include_next <math.h>
  86 #ifdef __cplusplus
  87 # undef exception
  88 #endif
  89 #define _MATH_H_WRAPPER
  90 #endif /* _MATH_H_WRAPPER */
  91 __EOF__
  92     # Define _MATH_H_WRAPPER at the end of the wrapper, not the start,
  93     # so that if #include_next gets another instance of the wrapper,
  94     # this will follow the #include_next chain until we arrive at
  95     # the real <math.h>.
  96     chmod a+r $LIB/$file
  97   fi
  98 fi
  99
 100 # Avoid the definition of the bool type in curses.h when using
 101 # g++, since it's now an official type in the C++ language.
 102
 103 # This is also from fixinc.wrap.
 104
 105 file=curses.h
 106 if [ -r $INPUT/$file ]; then
 107   echo Checking $INPUT/$file
 108   w='[   ]'
 109   if grep "typedef$w$w*char$w$w*bool$w*;" $INPUT/$file >/dev/null
 110   then
 111     echo Fixed $file
 112     rm -f $LIB/$file
 113     cat <<'__EOF__' >$LIB/$file
 114 #ifndef _CURSES_H_WRAPPER
 115 #ifdef __cplusplus
 116 # define bool __curses_bool_t
 117 #endif
 118 #include_next <curses.h>
 119 #ifdef __cplusplus
 120 # undef bool
 121 #endif
 122 #define _CURSES_H_WRAPPER
 123 #endif /* _CURSES_H_WRAPPER */
 124 __EOF__
 125     # Define _CURSES_H_WRAPPER at the end of the wrapper, not the start,
 126     # so that if #include_next gets another instance of the wrapper,
 127     # this will follow the #include_next chain until we arrive at
 128     # the real <curses.h>.
 129     chmod a+r $LIB/$file
 130   fi
 131 fi
 132
 133 # In limits.h, put #ifndefs around things that are supposed to be defined
 134 # in float.h to avoid redefinition errors if float.h is included first.
 135
 136 file=limits.h
 137 base=`basename $file`
 138 if [ -r ${LIB}/$file ]; then
 139   file_to_fix=${LIB}/$file
 140 else
 141   if [ -r ${INPUT}/$file ]; then
 142     file_to_fix=${INPUT}/$file
 143   else
 144     file_to_fix=""
 145   fi
 146 fi
 147 if [ \! -z "$file_to_fix" ]; then
 148   echo Checking $file_to_fix
 149   sed -e '/[    ]FLT_MIN[       ]/i\
 150 #ifndef FLT_MIN
 151 '\
 152       -e '/[    ]FLT_MIN[       ]/a\
 153 #endif
 154 '\
 155       -e '/[    ]FLT_MAX[       ]/i\
 156 #ifndef FLT_MAX
 157 '\
 158       -e '/[    ]FLT_MAX[       ]/a\
 159 #endif
 160 '\
 161       -e '/[    ]FLT_DIG[       ]/i\
 162 #ifndef FLT_DIG
 163 '\
 164       -e '/[    ]FLT_DIG[       ]/a\
 165 #endif
 166 '\
 167       -e '/[    ]DBL_MIN[       ]/i\
 168 #ifndef DBL_MIN
 169 '\
 170       -e '/[    ]DBL_MIN[       ]/a\
 171 #endif
 172 '\
 173       -e '/[    ]DBL_MAX[       ]/i\
 174 #ifndef DBL_MAX
 175 '\
 176       -e '/[    ]DBL_MAX[       ]/a\
 177 #endif
 178 '\
 179       -e '/[    ]DBL_DIG[       ]/i\
 180 #ifndef DBL_DIG
 181 '\
 182       -e '/[    ]DBL_DIG[       ]/a\
 183 #endif
 184 ' $file_to_fix > /tmp/$base
 185   if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
 186     true
 187   else
 188     echo Fixed $file_to_fix
 189     rm -f ${LIB}/$file
 190     cp /tmp/$base ${LIB}/$file
 191     chmod a+r ${LIB}/$file
 192   fi
 193   rm -f /tmp/$base
 194 fi
 195
 196 # The Irix unistd.h will introduce a call to __vfork in its libc, but the
 197 # function is never actually prototyped.
 198 file=unistd.h
 199 base=`basename $file`
 200 if [ -r ${LIB}/$file ]; then
 201   file_to_fix=${LIB}/$file
 202 else
 203   if [ -r ${INPUT}/$file ]; then
 204     file_to_fix=${INPUT}/$file
 205   else
 206     file_to_fix=""
 207   fi
 208 fi
 209 if [ \! -z "$file_to_fix" ]; then
 210   echo Checking $file_to_fix
 211   sed -e '/__vfork/i\
 212 extern pid_t __vfork(void);'\
 213      $file_to_fix > /tmp/$base
 214   if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
 215     true
 216   else
 217     echo Fixed $file_to_fix
 218     rm -f ${LIB}/$file
 219     cp /tmp/$base ${LIB}/$file
 220     chmod a+r ${LIB}/$file
 221   fi
 222   rm -f /tmp/$base
 223 fi
 224
 225 exit 0