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#! /bin/sh
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# Wrapper for compilers which do not understand `-c -o'.
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scriptversion=2005-05-14.22
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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>.</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 3, 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, see <http: licenses="" www.gnu.org="">.</http:>
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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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# This file is maintained in Automake, please report
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# bugs to <bug-automake@gnu.org> or send patches to</bug-automake@gnu.org>
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# <automake-patches@gnu.org>.</automake-patches@gnu.org>
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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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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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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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Report bugs to <bug-automake@gnu.org>.</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 $?
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    ;;
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esac
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ofile=
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cfile=
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eat=
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for arg
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do
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  if test -n "$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=$1
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	set x "$@" "$1"
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	shift
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	;;
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      *)
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	set x "$@" "$1"
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	shift
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	;;
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    esac
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  fi
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  shift
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done
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if test -z "$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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# 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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# 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 '$lockdir'; exit 1" 1 2 15
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# Run the compile.
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"$@"
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ret=$?
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if test -f "$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" "$ofile"
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fi
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rmdir "$lockdir"
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exit $ret
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# Local Variables:
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# mode: shell-script
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# sh-indentation: 2
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# eval: (add-hook 'write-file-hooks 'time-stamp)
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# time-stamp-start: "scriptversion="
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# time-stamp-format: "%:y-%02m-%02d.%02H"
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# time-stamp-end: "$"
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# End: