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- qos
- Wednesday, November 14th, 2007 at 6:01:50pm UTC
- #! /bin/bash
- # Wrapper for compilers which do not understand `-c -o'.
- # Copyright 1999, 2000 Free Software Foundation, Inc.
- # Written by Tom Tromey <[email protected]>.
- #
- # 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=$1
- shift
- ofile=
- 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 $1"
- ;;
- esac
- shift
- done
- if test -z "$ofile" || test -z "$cfile"; then
- # If no `-o' option was seen then we might have been invoked from a
- # pattern rule where we don't need one. That is ok -- this is a
- # normal compilation that the losing compiler can handle. If no
- # `.c' file was seen then we are probably linking. That is also
- # ok.
- exec "$prog" $args
- 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 $lockdir; exit 1" 1 2 15
- # Run the compile.
- "$prog" $args
- status=$?
- if test -f "$cofile"; then
- mv "$cofile" "$ofile"
- fi
- rmdir $lockdir
- exit $status
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