Rearrange everything.

[mdw-cross] / bin / mdw-cross

#! /bin/sh -e

case $# in
  0) echo 2>&1 "usage: ${0##*/} ENV [CMD [ARGS ...]]"; exit 2 ;;
esac
env=$1; shift
case $# in
  0) set -- "$SHELL" ;;
esac

case ${CROSSDIR+t} in
  t) ;;
  *)
    dir=$(pwd)
    p=$0
    while :; do
      case $p in */*) f=${p##*/} p=${p%/*};; *) f=$p p=. ;; esac
      cd $p
      if ! [ -L "$f" ]; then break; fi
      p=$(readlink "$f")
    done
    p=$(pwd)
    CROSSDIR=${p%/bin}; export CROSSDIR
    cd "$dir"
    ;;
esac

if ! [ -f "$CROSSDIR/etc/$env-setup.sh" ]; then
  echo 2>&1 "${0##*/}: cross environment \`$env' unknown"; exit 2
fi

p=$PATH CROSS_COMPILER_PREFIX=""
while :; do
  case $p in
    "") break ;;
    *:*) d=${p%%:*} p=${p#*:} ;;
    *) d=$p p="" ;;
  esac
  if [ -e "$d/ccache" ]; then CROSS_COMPILER_PREFIX="ccache "; break; fi
done
export CROSS_COMPILER_PREFIX

MDW_BUILDENV=$env; export MDW_BUILDENV

if [ -f "$CROSSDIR/etc/$env-config.site" ]
then CONFIG_SITE=$CROSSDIR/etc/$env-config.site
else CONFIG_SITE=$CROSSDIR/etc/common-cross-config.site
fi
export CONFIG_SITE

CROSS_PREFIX=$CROSSDIR/inst.$env; export CROSS_PREFIX
. "$CROSSDIR/etc/$env-setup.sh"

case ${CROSS_ARCH+t} in
  t) ;;
  *) echo 2>&1 "${0##*/}: setup script didn't set \`CROSS_ARCH'"; exit 2 ;;
esac
export CROSS_ARCH

case :$PATH: in
  *:"$CROSSDIR/tools:"*) ;;
  *) PATH=$CROSSDIR/tools:$PATH ;;
esac

exec "$@"