#! /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: