#! /bin/sh+
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# Wrapper for compilers which do not understand `-c -o'.+
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+
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scriptversion=2005-05-14.22+
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+
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# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.+
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# Written by Tom Tromey <tromey@cygnus.com>.+
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#+
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# This program is free software; you can redistribute it and/or modify+
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# it under the terms of the GNU General Public License as published by+
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# the Free Software Foundation; either version 2, or (at your option)+
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# any later version.+
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#+
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# This program is distributed in the hope that it will be useful,+
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# but WITHOUT ANY WARRANTY; without even the implied warranty of+
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+
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# GNU General Public License for more details.+
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#+
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# You should have received a copy of the GNU General Public License+
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# along with this program; if not, write to the Free Software+
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.+
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+
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# As a special exception to the GNU General Public License, if you+
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# distribute this file as part of a program that contains a+
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# configuration script generated by Autoconf, you may include it under+
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# the same distribution terms that you use for the rest of that program.+
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+
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# This file is maintained in Automake, please report+
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# bugs to <bug-automake@gnu.org> or send patches to+
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# <automake-patches@gnu.org>.+
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+
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case $1 in+
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  '')+
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     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2+
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     exit 1;+
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     ;;+
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  -h | --h*)+
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    cat <<\EOF+
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Usage: compile [--help] [--version] PROGRAM [ARGS]+
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+
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Wrapper for compilers which do not understand `-c -o'.+
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Remove `-o dest.o' from ARGS, run PROGRAM with the remaining+
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arguments, and rename the output as expected.+
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+
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If you are trying to build a whole package this is not the+
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right script to run: please start by reading the file `INSTALL'.+
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+
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Report bugs to <bug-automake@gnu.org>.+
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EOF+
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    exit $?+
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    ;;+
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  -v | --v*)+
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    echo "compile $scriptversion"+
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    exit $?+
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    ;;+
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esac+
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+
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ofile=+
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cfile=+
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eat=+
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+
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for arg+
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do+
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  if test -n "$eat"; then+
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    eat=+
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  else+
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    case $1 in+
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      -o)+
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	# configure might choose to run compile as `compile cc -o foo foo.c'.+
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	# So we strip `-o arg' only if arg is an object.+
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	eat=1+
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	case $2 in+
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	  *.o | *.obj)+
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	    ofile=$2+
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	    ;;+
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	  *)+
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	    set x "$@" -o "$2"+
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	    shift+
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	    ;;+
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	esac+
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	;;+
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      *.c)+
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	cfile=$1+
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	set x "$@" "$1"+
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	shift+
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	;;+
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      *)+
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	set x "$@" "$1"+
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	shift+
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	;;+
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    esac+
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  fi+
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  shift+
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done+
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+
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if test -z "$ofile" || test -z "$cfile"; then+
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  # If no `-o' option was seen then we might have been invoked from a+
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  # pattern rule where we don't need one.  That is ok -- this is a+
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  # normal compilation that the losing compiler can handle.  If no+
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  # `.c' file was seen then we are probably linking.  That is also+
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  # ok.+
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  exec "$@"+
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fi+
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+
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# Name of file we expect compiler to create.+
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cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`+
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+
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# Create the lock directory.+
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# Note: use `[/.-]' here to ensure that we don't use the same name+
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# that we are using for the .o file.  Also, base the name on the expected+
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# object file name, since that is what matters with a parallel build.+
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lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d+
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while true; do+
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  if mkdir "$lockdir" >/dev/null 2>&1; then+
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    break+
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  fi+
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  sleep 1+
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done+
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# FIXME: race condition here if user kills between mkdir and trap.+
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trap "rmdir '$lockdir'; exit 1" 1 2 15+
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+
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# Run the compile.+
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"$@"+
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ret=$?+
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+
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if test -f "$cofile"; then+
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  mv "$cofile" "$ofile"+
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elif test -f "${cofile}bj"; then+
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  mv "${cofile}bj" "$ofile"+
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fi+
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+
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rmdir "$lockdir"+
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exit $ret+
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+
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# Local Variables:+
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# mode: shell-script+
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# sh-indentation: 2+
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# eval: (add-hook 'write-file-hooks 'time-stamp)+
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# time-stamp-start: "scriptversion="+
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# time-stamp-format: "%:y-%02m-%02d.%02H"+
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# time-stamp-end: "$"+
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# End:+
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