#!/bin/ksh
LC_ALL=C
LANG=C
export LC_ALL
export LANG

echo_eval(){
  echo "$@"
  eval "$@"
}

set_tar_dir(){
  b="$1"
  eval "${b}_tar"=$(find . -name "${b}-*.tar*" | tail -n 1)
  #eval echo "\$${b}_tar"
  eval "${b}_dir"=$(eval tar tzf "\$${b}_tar" | head -n 1)
  #eval echo "\$${b}_dir"
}

for b in \
    xnu	\
    ; do
  set_tar_dir "$b"	&&
  eval tar="\$${b}_tar"	&&
  eval dir="\$${b}_dir"	&&
  [ -d "$dir" ] ||
  case "$tar" in
  *.tar.lzma)	echo_eval tar --lzma -xf "'$tar'"	;;
  *.tar.xz)	echo_eval tar xJf "'$tar'"	;;
  *.tar.bz2)	echo_eval tar xjf "'$tar'"	;;
  *.tar.gz)	echo_eval tar xzf "'$tar'"	;;
  *.tar.Z)	echo_eval tar xZf "'$tar'"	;;
  *.tar)	echo_eval tar xf "'$tar'"	;;
  *)	break	;;
  esac
done	&&

(
echo_eval cd "'$xnu_dir'"	&&
echo_eval mkdir -p obj sym dst	&&
echo_eval make CC=gcc ARCH_CONFIGS="'I386 X86_64'"SRCROOT="'$PWD'" OBJROOT="'$PWD/obj'" SYMROOT="'$PWD/sym'" DSTROOT="'$PWD/dst'" exporthdrs all	&&
:
)	&&
echo ok	||
echo ng