gcc/fixinc/genfixes

   1 #! /bin/sh
   2
   3 # Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
   4 # This file is part of GCC.
   5
   6 # GCC is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2, or (at your option)
   9 # any later version.
  10
  11 # GCC is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with GCC; see the file COPYING.  If not, write to
  18 # the Free Software Foundation, 59 Temple Place - Suite 330,
  19 # Boston, MA 02111-1307, USA.
  20
  21 SHELL=/bin/sh
  22 export SHELL
  23 if [ $# -eq 0 ] ; then
  24   not_done=false
  25 else
  26   not_done=true
  27 fi
  28
  29 while $not_done
  30 do
  31   case "$1" in
  32   -D )
  33     shift
  34     if [ $# -eq 0 ] ; then
  35       not_done=false
  36     else
  37       AG="$AG -D$1"
  38       shift
  39     fi
  40     ;;
  41
  42   -D* )
  43     AG="$AG $1"
  44     shift
  45     ;;
  46
  47   '-?' )
  48     echo "USAGE: gendefs [ -D<def-name> ... ] [ <output-name> ]"
  49     echo "WHERE: '<def-name>' specifies a #define test name from inclhack.def"
  50     echo "  and  '<output-name>' is one of:"
  51     echo "       fixincl.x machine.h"
  52     echo "The default is to produce the first three outputs."
  53     exit 0
  54     ;;
  55
  56   * )
  57     not_done=false
  58     ;;
  59   esac
  60 done
  61
  62 if [ $# -eq 0 ] ; then
  63   set -- fixincl.x
  64 fi
  65
  66 AG="autogen $AG"
  67 set -e
  68
  69 case "$1" in
  70 fixincl.x | */fixincl.x )
  71   if [ -z "`${AG} -v | fgrep 'Ver. 5.'`" ]
  72   then
  73     echo "AutoGen appears to be out of date or not correctly installed."
  74     echo "Please download and install:"
  75     echo "   ftp://gcc.gnu.org/pub/gcc/infrastructure/autogen.tar.gz"
  76     touch fixincl.x
  77   else
  78     echo AutoGen-ing fixincl.x
  79     $AG inclhack.def
  80   fi
  81   ;;
  82
  83 machname.h | */machname.h )
  84   # This script extracts from the specs file all the predefined macros
  85   # that are not in the C89 reserved namespace (the reserved namespace
  86   # is all identifiers beginnning with two underscores or one underscore
  87   # followed by a capital letter).  The specs file is on standard input.
  88   # A #define for a regular expression to find any of those macros in a
  89   # header file is written to standard output.
  90
  91   # Note dependency on ASCII. \040 = space, \011 = tab, \012 = newline.
  92   # tr ' ' '\n' is, alas, not portable.
  93
  94   tr -s '\040\011' '\012\012' < ../specs |
  95     sed -n 's/^.*-D\([a-zA-Z_][a-zA-Z0-9_]*\).*$/\1/p' |
  96     sort -u > mn.T
  97
  98   if grep -v '^_[_A-Z]' mn.T > mn.U
  99   then
 100     echo "Forbidden identifiers: `tr '\012' ' ' <mn.U`" >&2
 101     sed 's/^/\\\\</; s/$/\\\\>/' <mn.U | tr '\012' '|' > mn.V
 102     echo '' >>mn.V
 103     sed 's/^/#define MN_NAME_PAT "/; s/|$/"/' < mn.V > machname.T
 104   else
 105     echo "No forbidden identifiers defined by this target" >&2
 106     echo '#undef MN_NAME_PAT' > machname.T
 107   fi
 108   rm -f mn.[TUV]
 109   mv -f machname.T machname.h
 110   ;;
 111
 112 * )
 113   echo genfixes cannot create $1
 114   exit 1
 115   ;;
 116 esac
 117
 118 exit 0