1 files changed, 36 insertions, 0 deletions
diff --git a/aclocal/rtems-top.m4 b/aclocal/rtems-top.m4
new file mode 100644
index 0000000..c6acfd1
--- /dev/null
+++ b/aclocal/rtems-top.m4
@@ -0,0 +1,36 @@
+dnl $Id$
+
+# AC_DISABLE_OPTION_CHECKING is not available before 2.62
+AC_PREREQ(2.62)
+
+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_REQUIRE([AC_DISABLE_OPTION_CHECKING])
+AC_CONFIG_AUX_DIR([$1])
+AC_CHECK_PROGS(MAKE, gmake make)
+AC_BEFORE([$0], [AM_INIT_AUTOMAKE])dnl
+
+AC_PREFIX_DEFAULT([/opt/rtems-][_RTEMS_API])
+
+RTEMS_TOPdir="$1";
+AC_SUBST(RTEMS_TOPdir)
+
+dots=`echo $with_target_subdir|\
+sed -e 's,^\.$,,' -e 's%^\./%%' -e 's%[[^/]]$%&/%' -e 's%[[^/]]*/%../%g'`
+PROJECT_TOPdir=${dots}${RTEMS_TOPdir}/'$(top_builddir)'
+AC_SUBST(PROJECT_TOPdir)
+
+PROJECT_ROOT="${RTEMS_TOPdir}/\$(top_builddir)"
+AC_SUBST(PROJECT_ROOT)
+
+AC_MSG_CHECKING([for RTEMS Version])
+AC_MSG_RESULT([_RTEMS_VERSION])
+pkgdatadir="${datadir}"/rtems[]_RTEMS_API;
+AC_SUBST([pkgdatadir])
+])dnl