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ntp 4.2.6p5

    1: #! /bin/sh
    2: # ylwrap - wrapper for lex/yacc invocations.
    3: 
    4: scriptversion=2009-04-28.21; # UTC
    5: 
    6: # Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
    7: # 2007, 2009 Free Software Foundation, Inc.
    8: #
    9: # Written by Tom Tromey <tromey@cygnus.com>.
   10: #
   11: # This program is free software; you can redistribute it and/or modify
   12: # it under the terms of the GNU General Public License as published by
   13: # the Free Software Foundation; either version 2, or (at your option)
   14: # any later version.
   15: #
   16: # This program is distributed in the hope that it will be useful,
   17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   19: # GNU General Public License for more details.
   20: #
   21: # You should have received a copy of the GNU General Public License
   22: # along with this program.  If not, see <http://www.gnu.org/licenses/>.
   23: 
   24: # As a special exception to the GNU General Public License, if you
   25: # distribute this file as part of a program that contains a
   26: # configuration script generated by Autoconf, you may include it under
   27: # the same distribution terms that you use for the rest of that program.
   28: 
   29: # This file is maintained in Automake, please report
   30: # bugs to <bug-automake@gnu.org> or send patches to
   31: # <automake-patches@gnu.org>.
   32: 
   33: case "$1" in
   34:   '')
   35:     echo "$0: No files given.  Try \`$0 --help' for more information." 1>&2
   36:     exit 1
   37:     ;;
   38:   --basedir)
   39:     basedir=$2
   40:     shift 2
   41:     ;;
   42:   -h|--h*)
   43:     cat <<\EOF
   44: Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
   45: 
   46: Wrapper for lex/yacc invocations, renaming files as desired.
   47: 
   48:   INPUT is the input file
   49:   OUTPUT is one file PROG generates
   50:   DESIRED is the file we actually want instead of OUTPUT
   51:   PROGRAM is program to run
   52:   ARGS are passed to PROG
   53: 
   54: Any number of OUTPUT,DESIRED pairs may be used.
   55: 
   56: Report bugs to <bug-automake@gnu.org>.
   57: EOF
   58:     exit $?
   59:     ;;
   60:   -v|--v*)
   61:     echo "ylwrap $scriptversion"
   62:     exit $?
   63:     ;;
   64: esac
   65: 
   66: 
   67: # The input.
   68: input="$1"
   69: shift
   70: case "$input" in
   71:   [\\/]* | ?:[\\/]*)
   72:     # Absolute path; do nothing.
   73:     ;;
   74:   *)
   75:     # Relative path.  Make it absolute.
   76:     input="`pwd`/$input"
   77:     ;;
   78: esac
   79: 
   80: pairlist=
   81: while test "$#" -ne 0; do
   82:   if test "$1" = "--"; then
   83:     shift
   84:     break
   85:   fi
   86:   pairlist="$pairlist $1"
   87:   shift
   88: done
   89: 
   90: # The program to run.
   91: prog="$1"
   92: shift
   93: # Make any relative path in $prog absolute.
   94: case "$prog" in
   95:   [\\/]* | ?:[\\/]*) ;;
   96:   *[\\/]*) prog="`pwd`/$prog" ;;
   97: esac
   98: 
   99: # FIXME: add hostname here for parallel makes that run commands on
  100: # other machines.  But that might take us over the 14-char limit.
  101: dirname=ylwrap$$
  102: trap "cd '`pwd`'; rm -rf $dirname > /dev/null 2>&1" 1 2 3 15
  103: mkdir $dirname || exit 1
  104: 
  105: cd $dirname
  106: 
  107: case $# in
  108:   0) "$prog" "$input" ;;
  109:   *) "$prog" "$@" "$input" ;;
  110: esac
  111: ret=$?
  112: 
  113: if test $ret -eq 0; then
  114:   set X $pairlist
  115:   shift
  116:   first=yes
  117:   # Since DOS filename conventions don't allow two dots,
  118:   # the DOS version of Bison writes out y_tab.c instead of y.tab.c
  119:   # and y_tab.h instead of y.tab.h. Test to see if this is the case.
  120:   y_tab_nodot="no"
  121:   if test -f y_tab.c || test -f y_tab.h; then
  122:     y_tab_nodot="yes"
  123:   fi
  124: 
  125:   # The directory holding the input.
  126:   input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
  127:   # Quote $INPUT_DIR so we can use it in a regexp.
  128:   # FIXME: really we should care about more than `.' and `\'.
  129:   input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
  130: 
  131:   while test "$#" -ne 0; do
  132:     from="$1"
  133:     # Handle y_tab.c and y_tab.h output by DOS
  134:     if test $y_tab_nodot = "yes"; then
  135:       if test $from = "y.tab.c"; then
  136:     	from="y_tab.c"
  137:       else
  138:     	if test $from = "y.tab.h"; then
  139:     	  from="y_tab.h"
  140:     	fi
  141:       fi
  142:     fi
  143:     if test -f "$from"; then
  144:       # If $2 is an absolute path name, then just use that,
  145:       # otherwise prepend `../'.
  146:       case "$2" in
  147:     	[\\/]* | ?:[\\/]*) target="$2";;
  148:     	*) target="../$2";;
  149:       esac
  150: 
  151:       # We do not want to overwrite a header file if it hasn't
  152:       # changed.  This avoid useless recompilations.  However the
  153:       # parser itself (the first file) should always be updated,
  154:       # because it is the destination of the .y.c rule in the
  155:       # Makefile.  Divert the output of all other files to a temporary
  156:       # file so we can compare them to existing versions.
  157:       if test $first = no; then
  158: 	realtarget="$target"
  159: 	target="tmp-`echo $target | sed s/.*[\\/]//g`"
  160:       fi
  161:       # Edit out `#line' or `#' directives.
  162:       #
  163:       # We don't want the resulting debug information to point at
  164:       # an absolute srcdir; it is better for it to just mention the
  165:       # .y file with no path.
  166:       #
  167:       # We want to use the real output file name, not yy.lex.c for
  168:       # instance.
  169:       #
  170:       # We want the include guards to be adjusted too.
  171:       FROM=`echo "$from" | sed \
  172:             -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
  173:             -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
  174:       TARGET=`echo "$2" | sed \
  175:             -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
  176:             -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
  177: 
  178:       sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
  179:           -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?
  180: 
  181:       # Check whether header files must be updated.
  182:       if test $first = no; then
  183: 	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
  184: 	  echo "$2" is unchanged
  185: 	  rm -f "$target"
  186: 	else
  187:           echo updating "$2"
  188:           mv -f "$target" "$realtarget"
  189:         fi
  190:       fi
  191:     else
  192:       # A missing file is only an error for the first file.  This
  193:       # is a blatant hack to let us support using "yacc -d".  If -d
  194:       # is not specified, we don't want an error when the header
  195:       # file is "missing".
  196:       if test $first = yes; then
  197:         ret=1
  198:       fi
  199:     fi
  200:     shift
  201:     shift
  202:     first=no
  203:   done
  204: else
  205:   ret=$?
  206: fi
  207: 
  208: # Remove the directory.
  209: cd ..
  210: rm -rf $dirname
  211: 
  212: exit $ret
  213: 
  214: # Local Variables:
  215: # mode: shell-script
  216: # sh-indentation: 2
  217: # eval: (add-hook 'write-file-hooks 'time-stamp)
  218: # time-stamp-start: "scriptversion="
  219: # time-stamp-format: "%:y-%02m-%02d.%02H"
  220: # time-stamp-time-zone: "UTC"
  221: # time-stamp-end: "; # UTC"
  222: # End: