rtems/aclocal/target.m4

dnl $Id$

AC_DEFUN(RTEMS_CONFIG_SUBDIRS,
[
define([RTEMS_TGT_SUBDIRS], 
ifdef([RTEMS_TGT_SUBDIRS], [RTEMS_TGT_SUBDIRS ],)[$1])dnl
target_subdirs="RTEMS_TGT_SUBDIRS"
AC_SUBST(target_subdirs)
])

dnl This is a subroutine of AC_OUTPUT.
dnl It is called after running config.status.
dnl AC_OUTPUT_SUBDIRS(DIRECTORY...)
AC_DEFUN(RTEMS_OUTPUT_SUBDIRS,
[
if test "$no_recursion" != yes; then
  if test $target_alias != $host_alias; then 
    target_subdir="$target_alias"
  else
    target_subdir="."
  fi
  # Remove --cache-file and --srcdir arguments so they do not pile up.
  ac_sub_configure_args=
  ac_prev=
  for ac_arg in $ac_configure_args; do
    if test -n "$ac_prev"; then
      ac_prev=
      continue
    fi
    case "$ac_arg" in
    -cache-file | --cache-file | --cache-fil | --cache-fi \
    | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
      ac_prev=cache_file ;;
    -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
    | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
      ;;
    -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
      ac_prev=srcdir ;;
    -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
      ;;
    *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
    esac
  done

  test -d $target_subdir || mkdir $target_subdir
  for ac_config_dir in $1; do

    # Do not complain, so a configure script can configure whichever
    # parts of a large source tree are present.
    if test ! -d $srcdir/$ac_config_dir; then
      continue
    fi

    echo configuring in $target_subdir/$ac_config_dir

    case "$srcdir" in
    .) ;;
    *)
      if test -d $target_subdir/$ac_config_dir || mkdir $target_subdir/$ac_config_dir; then :;
      else
        AC_MSG_ERROR(can not create `pwd`/$target_subdir/$ac_config_dir)
      fi
      ;;
    esac

    ac_popdir=`pwd`
    cd $target_subdir/$ac_config_dir

changequote(, )dnl
      # A "../" for each directory in /$ac_config_dir.
      ac_dots=`echo $target_subdir/$ac_config_dir|sed -e 's%^\./%%' -e 's%[^/]$%&/%' -e 's%[^/]*/%../%g'`
changequote([, ])dnl

    case "$srcdir" in
    .) # No --srcdir option.  We are building in place.
      ac_sub_srcdir=$srcdir ;;
    /*) # Absolute path.
      ac_sub_srcdir=$srcdir/$ac_config_dir ;;
    *) # Relative path.
      ac_sub_srcdir=$ac_dots$srcdir/$ac_config_dir ;;
    esac

    # Check for guested configure; otherwise get Cygnus style configure.
    if test -f $ac_sub_srcdir/configure; then
      ac_sub_configure=$ac_sub_srcdir/configure
    elif test -f $ac_sub_srcdir/configure.in; then
      ac_sub_configure=$ac_configure
    else
      AC_MSG_WARN(no configuration information is in $ac_config_dir)
      ac_sub_configure=
    fi

    # The recursion is here.
    if test -n "$ac_sub_configure"; then

      # Make the cache file name correct relative to the subdirectory.
      if test "$target_alias" != "$host_alias"; then
      ac_sub_cache_file=$cache_file
      else
      case "$cache_file" in
      /*) ac_sub_cache_file=$cache_file ;;
      *) # Relative path.
        ac_sub_cache_file="$ac_dots$cache_file" ;;
      esac
      fi
ifdef([AC_PROVIDE_AC_PROG_INSTALL],
      [  case "$ac_given_INSTALL" in
changequote(, )dnl
        [/$]*) INSTALL="$ac_given_INSTALL" ;;
changequote([, ])dnl
        *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
        esac
])dnl

      echo "[running ${CONFIG_SHELL-/bin/sh} $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file] --srcdir=$ac_sub_srcdir"
      # The eval makes quoting arguments work.
      if eval ${CONFIG_SHELL-/bin/sh} $ac_sub_configure \
	$ac_sub_configure_args --srcdir=$ac_sub_srcdir \
	--with-target-subdir=$target_subdir --cache-file=$ac_sub_cache_file 
      then :
      else
        AC_MSG_ERROR($ac_sub_configure failed for $ac_config_dir)
      fi
    fi

    cd $ac_popdir
  done
fi
])