2002-07-05 Ralf Corsepius <corsepiu@faw.uni-ulm.de>

* acinclude.m4: New.
	* Makefile.am: Remove tar-installation.
	Prepend @exec@ to SUBDIRS.
	* configure.ac: Switch to AC_CONFIG_SRCDIR([optman]).
	Add RTEMS_ENABLE_MULTIPROCESSING.
	Add RTEMS_CONFIG_SUBDIR([exec]...).

c/src/acinclude.m4

@@ -0,0 +1,117 @@
+# $Id$
+#
+# Some hacks for handling powerpc-exception subdirectories
+#
+# Note: Consider this file a temporary band-aid until a better, more general
+# subdirectory handling solution is introduced to RTEMS.
+
+AC_DEFUN([RTEMS_CONFIG_SUBDIR],
+[
+AC_CONFIG_COMMANDS_POST(
+[
+ ac_sub_sourcedir=$2
+ ac_sub_builddir=$1
+
+if test "$no_recursion" != yes; then
+
+  # 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 $ac_arg in
+    -cache-file | --cache-file | --cache-fil | --cache-fi \
+    | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+      ac_prev=cache_file ;;
+    -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+    | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
+    | --c=*)
+      ;;
+    --config-cache | -C)
+      ;;
+    -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+      ac_prev=srcdir ;;
+    -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+      ;;
+    *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
+    esac
+  done
+
+  ac_sub_configure_args="$ac_sub_configure_args $3"
+
+  for ac_subdir in : $ac_sub_sourcedir; do test "x$ac_subdir" = x: && continue
+
+    # Do not complain, so a configure script can configure whichever
+    # parts of a large source tree are present.
+    test -d $srcdir/$ac_subdir || continue
+
+    AC_MSG_NOTICE([configuring in $ac_subdir])
+    case $srcdir in
+    .) ;;
+    *) AS_MKDIR_P(["./$ac_sub_builddir"])
+       if test -d ./$ac_sub_builddir; then :;
+       else
+         AC_MSG_ERROR([cannot create `pwd`/$ac_sub_builddir])
+       fi
+       ;;
+    esac
+
+    ac_popdir=`pwd`
+    cd $ac_sub_builddir
+
+    # A "../" for each directory in /$ac_subdir.
+    ac_dots=`echo $ac_sub_builddir |
+             sed 's,^\./,,;s,[[^/]]$,&/,;s,[[^/]]*/,../,g'`
+
+echo "*** dots  :$ac_dots"
+echo "*** src   :$srcdir"
+    case $srcdir in
+    .) # No --srcdir option.  We are building in place.
+      ac_sub_srcdir=$srcdir${ac_subdir} ;;
+    [[\\/]]* | ?:[[\\/]]* ) # Absolute path.
+      ac_sub_srcdir=$srcdir/$ac_subdir ;;
+    *) # Relative path.
+      ac_sub_srcdir=$ac_dots$srcdir/$ac_subdir ;;
+    esac
+
+echo "*** source:$ac_sub_sourcedir"
+echo "*** build :$ac_sub_builddir"
+echo "*** src   :$ac_sub_srcdir"
+echo "*** pwd   :"`pwd`
+
+    # Check for guested configure; otherwise get Cygnus style configure.
+    if test -f $ac_sub_srcdir/configure.gnu; then
+      ac_sub_configure="$SHELL '$ac_sub_srcdir/configure.gnu'"
+    elif test -f $ac_sub_srcdir/configure; then
+      ac_sub_configure="$SHELL '$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 $ac_subdir])
+      ac_sub_configure=
+    fi
+
+    # The recursion is here.
+    if test -n "$ac_sub_configure"; then
+      # Make the cache file name correct relative to the subdirectory.
+      case $cache_file in
+      [[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;;
+      *) # Relative path.
+        ac_sub_cache_file=$ac_dots$cache_file ;;
+      esac
+
+      AC_MSG_NOTICE([running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_sub_srcdir])
+      # The eval makes quoting arguments work.
+      eval $ac_sub_configure $ac_sub_configure_args \
+           --cache-file=$ac_sub_cache_file --srcdir=$ac_sub_srcdir ||
+        AC_MSG_ERROR([$ac_sub_configure failed for $ac_subdir])
+    fi
+
+    cd $ac_popdir
+  done
+fi
+])
+])