gcc/fixinc.irix

   1 #! /bin/sh
   2 # Install modified versions of certain problematic Irix include files.
   3 # Copyright (C) 1997 Free Software Foundation, Inc.
   4 # Contributed by Brendan Kehoe (brendan@cygnus.com).
   5 #
   6 # This file is part of GNU CC.
   7 #
   8 # GNU CC is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2, or (at your option)
  11 # any later version.
  12 #
  13 # GNU CC is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with GNU CC; see the file COPYING.  If not, write to
  20 # the Free Software Foundation, 59 Temple Place - Suite 330,
  21 # Boston, MA 02111-1307, USA.
  22 #
  23 #       See README-fixinc for more information.
  24
  25 # Directory containing the original header files.
  26 INPUT=${2-${INPUT-/usr/include}}
  27
  28 # Fail if no arg to specify a directory for the output.
  29 if [ x$1 = x ]
  30 then echo fixincludes: no output directory specified
  31 exit 1
  32 fi
  33
  34 # Directory in which to store the results.
  35 LIB=${1?"fixincludes: output directory not specified"}
  36
  37 # Make sure it exists.
  38 if [ ! -d $LIB ]; then
  39   mkdir $LIB || exit 1
  40 fi
  41
  42 ORIG_DIR=`pwd`
  43
  44 # Make LIB absolute if it is relative.
  45 # Don't do this if not necessary, since may screw up automounters.
  46 case $LIB in
  47 /*)
  48         ;;
  49 *)
  50         LIB=$ORIG_DIR/$LIB
  51         ;;
  52 esac
  53
  54 echo 'Building fixincludes in ' ${LIB}
  55
  56 #
  57 # Note: For Irix, we deliberately don't try to create the directory trees,
  58 #       since we only modify math.h and limits.h.  If we ADD ANY OTHERS,
  59 #       the "Making directories:" and symlinks code from fixinc.svr4 may
  60 #       have to go back in.
  61
  62 # The Irix math.h defines struct exception, which conflicts with
  63 # the class exception defined in the C++ file std/stdexcept.h.  We
  64 # redefine it to __math_exception.  This is not a great fix, but I
  65 # haven't been able to think of anything better.
  66 file=math.h
  67 base=`basename $file`
  68 if [ -r ${LIB}/$file ]; then
  69   file_to_fix=${LIB}/$file
  70 else
  71   if [ -r ${INPUT}/$file ]; then
  72     file_to_fix=${INPUT}/$file
  73   else
  74     file_to_fix=""
  75   fi
  76 fi
  77 if [ \! -z "$file_to_fix" ]; then
  78   echo Checking $file_to_fix
  79   sed -e '/struct exception/i\
  80 #ifdef __cplusplus\
  81 #define exception __math_exception\
  82 #endif'\
  83       -e '/struct exception/a\
  84 #ifdef __cplusplus\
  85 #undef exception\
  86 #endif' $file_to_fix > /tmp/$base
  87   if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
  88     true
  89   else
  90     echo Fixed $file_to_fix
  91     rm -f ${LIB}/$file
  92     cp /tmp/$base ${LIB}/$file
  93     chmod a+r ${LIB}/$file
  94   fi
  95   rm -f /tmp/$base
  96 fi
  97
  98 # In limits.h, put #ifndefs around things that are supposed to be defined
  99 # in float.h to avoid redefinition errors if float.h is included first.
 100
 101 file=limits.h
 102 base=`basename $file`
 103 if [ -r ${LIB}/$file ]; then
 104   file_to_fix=${LIB}/$file
 105 else
 106   if [ -r ${INPUT}/$file ]; then
 107     file_to_fix=${INPUT}/$file
 108   else
 109     file_to_fix=""
 110   fi
 111 fi
 112 if [ \! -z "$file_to_fix" ]; then
 113   echo Checking $file_to_fix
 114   sed -e '/[    ]FLT_MIN[       ]/i\
 115 #ifndef FLT_MIN
 116 '\
 117       -e '/[    ]FLT_MIN[       ]/a\
 118 #endif
 119 '\
 120       -e '/[    ]FLT_MAX[       ]/i\
 121 #ifndef FLT_MAX
 122 '\
 123       -e '/[    ]FLT_MAX[       ]/a\
 124 #endif
 125 '\
 126       -e '/[    ]FLT_DIG[       ]/i\
 127 #ifndef FLT_DIG
 128 '\
 129       -e '/[    ]FLT_DIG[       ]/a\
 130 #endif
 131 '\
 132       -e '/[    ]DBL_MIN[       ]/i\
 133 #ifndef DBL_MIN
 134 '\
 135       -e '/[    ]DBL_MIN[       ]/a\
 136 #endif
 137 '\
 138       -e '/[    ]DBL_MAX[       ]/i\
 139 #ifndef DBL_MAX
 140 '\
 141       -e '/[    ]DBL_MAX[       ]/a\
 142 #endif
 143 '\
 144       -e '/[    ]DBL_DIG[       ]/i\
 145 #ifndef DBL_DIG
 146 '\
 147       -e '/[    ]DBL_DIG[       ]/a\
 148 #endif
 149 ' $file_to_fix > /tmp/$base
 150   if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
 151     true
 152   else
 153     echo Fixed $file_to_fix
 154     rm -f ${LIB}/$file
 155     cp /tmp/$base ${LIB}/$file
 156     chmod a+r ${LIB}/$file
 157   fi
 158   rm -f /tmp/$base
 159 fi
 160
 161 exit 0