1 files changed, 63 insertions, 0 deletions
diff --git a/aclocal/target.m4 b/aclocal/target.m4
index 5c0d67d0ea..6a23ea82c1 100644
--- a/aclocal/target.m4
+++ b/aclocal/target.m4
@@ -88,3 +88,66 @@ rtems_configure_args="$ac_configure_args"
 
 ## FIXME: This is obsolete. Only kept for backward compatibility
 AU_DEFUN([RTEMS_OUTPUT_BUILD_SUBDIRS],[])
+
+
+dnl
+dnl Misc utility macros for subdir handling to work around missing abilities
+dnl in autoconf, automake and structural issues with RTEMS
+dnl
+dnl Contains parts derived from autoconf-2.13 AC_OUTPUT_SUBDIRS and Cygnus'
+dnl configure.in.
+dnl
+
+dnl
+dnl _RTEMS_PUSH_BUILDDIR(SUBDIR)
+dnl
+AC_DEFUN(_RTEMS_PUSH_BUILDDIR,
+[
+# _RTEMS_PUSH_BUILDDIR
+    echo configuring in $1
+    case "$srcdir" in
+    .) ;;
+    *) AS_MKDIR_P([$1])
+      ;;
+    esac
+
+    ac_popdir=`pwd`
+    cd $1
+])
+
+dnl
+dnl _RTEMS_POP_BUILDDIR
+dnl
+AC_DEFUN(_RTEMS_POP_BUILDDIR,
+[
+  cd $ac_popdir
+])
+
+dnl
+dnl _RTEMS_GIVEN_INSTALL
+dnl
+AC_DEFUN(_RTEMS_GIVEN_INSTALL,
+[
+ifdef([AC_PROVIDE_AC_PROG_INSTALL],[  
+  case "$ac_given_INSTALL" in
+  [[\\/]]* | ?:[[\\/]]*) INSTALL="$ac_given_INSTALL" ;;
+  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
+  esac
+])dnl
+])
+
+dnl
+dnl _RTEMS_SUB_SRCDIR(AC_CONFIG_DIR[,TARGET_SUBDIR])
+dnl
+AC_DEFUN(_RTEMS_SUB_SRCDIR,[
+# _RTEMS_SUB_SRCDIR
+    _RTEMS_ADJUST_SRCDIR(ac_sub_srcdir,$1,$2)
+
+    # Check for configure
+    if test -f $ac_sub_srcdir/configure; then
+      ac_sub_configure=$ac_sub_srcdir/configure
+    else
+      AC_MSG_WARN([no configuration information is in $1])
+      ac_sub_configure=
+    fi
+])