#! /bin/sh

 # Wrapper for compilers which do not understand `-c -o'.

 scriptversion=2005-05-14.22

 # Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.

 # Written by Tom Tromey <tromey@cygnus.com>.

 #

 # This program is free software; you can redistribute it and/or modify

 # it under the terms of the GNU General Public License as published by

 # the Free Software Foundation; either version 2, or (at your option)

 # any later version.

 #

 # This program is distributed in the hope that it will be useful,

 # but WITHOUT ANY WARRANTY; without even the implied warranty of

 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 # GNU General Public License for more details.

 #

 # You should have received a copy of the GNU General Public License

 # along with this program; if not, write to the Free Software

 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 # As a special exception to the GNU General Public License, if you

 # distribute this file as part of a program that contains a

 # configuration script generated by Autoconf, you may include it under

 # the same distribution terms that you use for the rest of that program.

 # This file is maintained in Automake, please report

 # bugs to <bug-automake@gnu.org> or send patches to

 # <automake-patches@gnu.org>.

 case $1 in

   '')

      echo "$0: No command.  Try \`$0 --help' for more information." 1>&2

      exit 1;

      ;;

   -h | --h*)

     cat <<\EOF

 Usage: compile [--help] [--version] PROGRAM [ARGS]

 Wrapper for compilers which do not understand `-c -o'.

 Remove `-o dest.o' from ARGS, run PROGRAM with the remaining

 arguments, and rename the output as expected.

 If you are trying to build a whole package this is not the

 right script to run: please start by reading the file `INSTALL'.

 Report bugs to <bug-automake@gnu.org>.

 EOF

     exit $?

     ;;

   -v | --v*)

     echo "compile $scriptversion"

     exit $?

     ;;

 esac

 ofile=

 cfile=

 eat=

 for arg

 do

   if test -n "$eat"; then

     eat=

   else

     case $1 in

       -o)

 	# configure might choose to run compile as `compile cc -o foo foo.c'.

 	# So we strip `-o arg' only if arg is an object.

 	eat=1

 	case $2 in

 	  *.o | *.obj)

 	    ofile=$2

 	    ;;

 	  *)

 	    set x "$@" -o "$2"

 	    shift

 	    ;;

 	esac

 	;;

       *.c)

 	cfile=$1

 	set x "$@" "$1"

 	shift

 	;;

       *)

 	set x "$@" "$1"

 	shift

 	;;

     esac

   fi

   shift

 done

 if test -z "$ofile" || test -z "$cfile"; then

   # If no `-o' option was seen then we might have been invoked from a

   # pattern rule where we don't need one.  That is ok -- this is a

   # normal compilation that the losing compiler can handle.  If no

   # `.c' file was seen then we are probably linking.  That is also

   # ok.

   exec "$@"

 fi

 # Name of file we expect compiler to create.

 cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`

 # Create the lock directory.

 # Note: use `[/.-]' here to ensure that we don't use the same name

 # that we are using for the .o file.  Also, base the name on the expected

 # object file name, since that is what matters with a parallel build.

 lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d

 while true; do

   if mkdir "$lockdir" >/dev/null 2>&1; then

     break

   fi

   sleep 1

 done

 # FIXME: race condition here if user kills between mkdir and trap.

 trap "rmdir '$lockdir'; exit 1" 1 2 15

 # Run the compile.

 "$@"

 ret=$?

 if test -f "$cofile"; then

   mv "$cofile" "$ofile"

 elif test -f "${cofile}bj"; then

   mv "${cofile}bj" "$ofile"

 fi

 rmdir "$lockdir"

 exit $ret

 # Local Variables:

 # mode: shell-script

 # sh-indentation: 2

 # eval: (add-hook 'write-file-hooks 'time-stamp)

 # time-stamp-start: "scriptversion="

 # time-stamp-format: "%:y-%02m-%02d.%02H"

 # time-stamp-end: "$"

 # End: