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dnl rtems-top.m4,v 1.5 2002/07/31 14:40:48 ralf Exp
 
dnl
dnl RTEMS_TOP($1)
dnl 
dnl $1 .. relative path from this configure.in to the toplevel configure.in
dnl
AC_DEFUN(RTEMS_TOP,
[dnl
AC_REQUIRE([RTEMS_VERSIONING])
AC_CHECK_PROGS(MAKE, gmake make)
AC_BEFORE([$0], [AC_CONFIG_AUX_DIR])dnl
AC_BEFORE([$0], [AM_INIT_AUTOMAKE])dnl
 
AC_PREFIX_DEFAULT([/opt/rtems])
 
## HACK to allow gnu-make conditionals in automake-Makefiles.
ENDIF=endif
AC_SUBST(ENDIF)
 
RTEMS_TOPdir="$1";
AC_SUBST(RTEMS_TOPdir)
 
## with_target_subdirs is handled implicitly by autoconf
test -n "$with_target_subdir" || with_target_subdir="."
 
if test "$with_target_subdir" = "." ; then
# Native
PROJECT_TOPdir="${with_project_root}${RTEMS_TOPdir}/\$(MULTIBUILDTOP)\$(top_builddir)"
else
# Cross
dots=`echo $with_target_subdir|\
sed -e 's%^\./%%' -e 's%[[^/]]$%&/%' -e 's%[[^/]]*/%../%g'`
PROJECT_TOPdir="${dots}${with_project_root}${RTEMS_TOPdir}/\$(MULTIBUILDTOP)\$(top_builddir)"
fi
AC_SUBST(PROJECT_TOPdir)
 
PROJECT_ROOT="${with_project_root}${RTEMS_TOPdir}/\$(MULTIBUILDTOP)\$(top_builddir)"
AC_SUBST(PROJECT_ROOT)
 
AC_MSG_CHECKING([for RTEMS Version])
AS_IF([test -r "${srcdir}/${RTEMS_TOPdir}/cpukit/aclocal/version.m4"],
[],
[AC_MSG_ERROR([Unable to find ${RTEMS_TOPdir}/cpukit/aclocal/version.m4])])
AC_MSG_RESULT([_RTEMS_VERSION])
])dnl