#! /bin/sh# Wrapper for compilers which do not understand `-c -o'.# Copyright 1999, 2000 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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.# Usage:# compile PROGRAM [ARGS]...# `-o FOO.o' is removed from the args passed to the actual compile.prog=$1shiftofile=cfile=args=while test $# -gt 0; do   case "$1" in    -o)       # configure might choose to run compile as `compile cc -o foo foo.c'.       # So we do something ugly here.       ofile=$2       shift       case "$ofile" in	*.o | *.obj)	   ;;	*)	   args="$args -o $ofile"	   ofile=	   ;;       esac       ;;    *.c)       cfile=$1       args="$args $1"       ;;    *)       args="$args $1"       ;;   esac   shiftdoneif test -z "$ofile" || test -z "$cfile"; then   # If no `-o' option was seen then we might have been invoked from a   # pattern rule where we don't need one.  That is ok -- this is a   # normal compilation that the losing compiler can handle.  If no   # `.c' file was seen then we are probably linking.  That is also   # ok.   exec "$prog" $argsfi# 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'`.dwhile true; do   if mkdir $lockdir > /dev/null 2>&1; then      break   fi   sleep 1done# FIXME: race condition here if user kills between mkdir and trap.trap "rmdir $lockdir; exit 1" 1 2 15# Run the compile."$prog" $argsstatus=$?if test -f "$cofile"; then   mv "$cofile" "$ofile"firmdir $lockdirexit $status