Chris@4: #! /bin/sh
Chris@4: # Wrapper for compilers which do not understand `-c -o'.
Chris@4: 
Chris@4: scriptversion=2005-05-14.22
Chris@4: 
Chris@4: # Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
Chris@4: # Written by Tom Tromey <tromey@cygnus.com>.
Chris@4: #
Chris@4: # This program is free software; you can redistribute it and/or modify
Chris@4: # it under the terms of the GNU General Public License as published by
Chris@4: # the Free Software Foundation; either version 2, or (at your option)
Chris@4: # any later version.
Chris@4: #
Chris@4: # This program is distributed in the hope that it will be useful,
Chris@4: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@4: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@4: # GNU General Public License for more details.
Chris@4: #
Chris@4: # You should have received a copy of the GNU General Public License
Chris@4: # along with this program; if not, write to the Free Software
Chris@4: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Chris@4: 
Chris@4: # As a special exception to the GNU General Public License, if you
Chris@4: # distribute this file as part of a program that contains a
Chris@4: # configuration script generated by Autoconf, you may include it under
Chris@4: # the same distribution terms that you use for the rest of that program.
Chris@4: 
Chris@4: # This file is maintained in Automake, please report
Chris@4: # bugs to <bug-automake@gnu.org> or send patches to
Chris@4: # <automake-patches@gnu.org>.
Chris@4: 
Chris@4: case $1 in
Chris@4:   '')
Chris@4:      echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
Chris@4:      exit 1;
Chris@4:      ;;
Chris@4:   -h | --h*)
Chris@4:     cat <<\EOF
Chris@4: Usage: compile [--help] [--version] PROGRAM [ARGS]
Chris@4: 
Chris@4: Wrapper for compilers which do not understand `-c -o'.
Chris@4: Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
Chris@4: arguments, and rename the output as expected.
Chris@4: 
Chris@4: If you are trying to build a whole package this is not the
Chris@4: right script to run: please start by reading the file `INSTALL'.
Chris@4: 
Chris@4: Report bugs to <bug-automake@gnu.org>.
Chris@4: EOF
Chris@4:     exit $?
Chris@4:     ;;
Chris@4:   -v | --v*)
Chris@4:     echo "compile $scriptversion"
Chris@4:     exit $?
Chris@4:     ;;
Chris@4: esac
Chris@4: 
Chris@4: ofile=
Chris@4: cfile=
Chris@4: eat=
Chris@4: 
Chris@4: for arg
Chris@4: do
Chris@4:   if test -n "$eat"; then
Chris@4:     eat=
Chris@4:   else
Chris@4:     case $1 in
Chris@4:       -o)
Chris@4: 	# configure might choose to run compile as `compile cc -o foo foo.c'.
Chris@4: 	# So we strip `-o arg' only if arg is an object.
Chris@4: 	eat=1
Chris@4: 	case $2 in
Chris@4: 	  *.o | *.obj)
Chris@4: 	    ofile=$2
Chris@4: 	    ;;
Chris@4: 	  *)
Chris@4: 	    set x "$@" -o "$2"
Chris@4: 	    shift
Chris@4: 	    ;;
Chris@4: 	esac
Chris@4: 	;;
Chris@4:       *.c)
Chris@4: 	cfile=$1
Chris@4: 	set x "$@" "$1"
Chris@4: 	shift
Chris@4: 	;;
Chris@4:       *)
Chris@4: 	set x "$@" "$1"
Chris@4: 	shift
Chris@4: 	;;
Chris@4:     esac
Chris@4:   fi
Chris@4:   shift
Chris@4: done
Chris@4: 
Chris@4: if test -z "$ofile" || test -z "$cfile"; then
Chris@4:   # If no `-o' option was seen then we might have been invoked from a
Chris@4:   # pattern rule where we don't need one.  That is ok -- this is a
Chris@4:   # normal compilation that the losing compiler can handle.  If no
Chris@4:   # `.c' file was seen then we are probably linking.  That is also
Chris@4:   # ok.
Chris@4:   exec "$@"
Chris@4: fi
Chris@4: 
Chris@4: # Name of file we expect compiler to create.
Chris@4: cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
Chris@4: 
Chris@4: # Create the lock directory.
Chris@4: # Note: use `[/.-]' here to ensure that we don't use the same name
Chris@4: # that we are using for the .o file.  Also, base the name on the expected
Chris@4: # object file name, since that is what matters with a parallel build.
Chris@4: lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d
Chris@4: while true; do
Chris@4:   if mkdir "$lockdir" >/dev/null 2>&1; then
Chris@4:     break
Chris@4:   fi
Chris@4:   sleep 1
Chris@4: done
Chris@4: # FIXME: race condition here if user kills between mkdir and trap.
Chris@4: trap "rmdir '$lockdir'; exit 1" 1 2 15
Chris@4: 
Chris@4: # Run the compile.
Chris@4: "$@"
Chris@4: ret=$?
Chris@4: 
Chris@4: if test -f "$cofile"; then
Chris@4:   mv "$cofile" "$ofile"
Chris@4: elif test -f "${cofile}bj"; then
Chris@4:   mv "${cofile}bj" "$ofile"
Chris@4: fi
Chris@4: 
Chris@4: rmdir "$lockdir"
Chris@4: exit $ret
Chris@4: 
Chris@4: # Local Variables:
Chris@4: # mode: shell-script
Chris@4: # sh-indentation: 2
Chris@4: # eval: (add-hook 'write-file-hooks 'time-stamp)
Chris@4: # time-stamp-start: "scriptversion="
Chris@4: # time-stamp-format: "%:y-%02m-%02d.%02H"
Chris@4: # time-stamp-end: "$"
Chris@4: # End: