#! /bin/sh
# Copyright 2002 Free Software Foundation
# by Alexandre Oliva <aoliva@redhat.com>

# This script is Free Software, and it can be copied, distributed and
# modified as defined in the GNU General Public License.  A copy of
# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html

# This is a wrapper for distcc that turns relative pathnames into
# network-neutral ones.  It modifies anything containing a slash and
# not starting with dash or slash, as well as -B flags.  We need not
# be concerned about -I and -L, since distcc always does preprocessing
# and linking locally.

# To use it, set the STAGE_CC_WRAPPER to the name of this script, and
# the GCC build machinery will use it when buildling bootstrap stages
# and target libraries.  You will also need to point NETPWD to the
# netpwd script, and perhaps customize it to map pathnames properly
# for your environment.


# If the first pathname is relative (.../xgcc, ./libtool, etc),
case "$1" in
[^/]*/*)
  nargs=$#
  basedir=`${NETPWD-netpwd}`
  # then process arguments
  for arg
  do
    case $arg in
    -B[^/]*)
      arg=-B$basedir/`echo "X$arg" | sed -e '1s/^X-B//'`
      ;;
    [^-/]*/*)
      arg=$basedir/$arg
      ;;
    esac
    set fnord ${1+"$@"} "$arg"
  done
  shift $nargs # take list of fnords out
  shift $nargs # take original args out
  ;;
esac

# Since GCC adds the current working directory to the object file's
# debugging info, you have to start distcc on all machines in the same
# directory (say /tmp) and make sure you never use the localhost
# compiler, using the current machine as if it were remote, if at all.
case " $DISTCC_HOSTS " in
*" localhost "*)
  HOSTNAME=${HOSTNAME-`uname -n`}
  DISTCC_HOSTS=`echo $DISTCC_HOSTS | sed "s,localhost,$HOSTNAME,"`
  ;;
esac

exec distcc ${1+"$@"}