configure.in, configure: Make sure to create the stage* and include symbolic links in each subdirectory...

* configure.in, configure: Make sure to create the stage* and include
	symbolic links in each subdirectory, as we do in configure.lang for
	non-autoconf configurations.

fixes cp 3stage problem

From-SVN: r15528

gcc/configure

@@ -5111,6 +5111,19 @@ case x$CONFIG_HEADERS in
 xconfig.h:config.in)
 echo > cstamp-h ;;
 esac
+# Make sure we create things so -Bstage1/ will work.
+for d in .. ${subdirs} ; do
+  if [ $d != .. ]; then
+	STARTDIR=`pwd`
+	cd $d
+	for t in stage1 stage2 stage3 stage4 include
+	do
+		rm -f $t
+		$symbolic_link ../$t $t 2>/dev/null
+	done
+	cd $STARTDIR
+  fi
+done
 
 exit 0
 EOF

gcc/configure.in

@@ -3147,6 +3147,19 @@ case x$CONFIG_HEADERS in
 xconfig.h:config.in)
 echo > cstamp-h ;;
 esac
+# Make sure we create things so -Bstage1/ will work.
+for d in .. ${subdirs} ; do
+  if [ $d != .. ]; then
+	STARTDIR=`pwd`
+	cd $d
+	for t in stage1 stage2 stage3 stage4 include
+	do
+		rm -f $t
+		$symbolic_link ../$t $t 2>/dev/null
+	done
+	cd $STARTDIR
+  fi
+done
 ],
 [
 host='${host}'