libtool script is created in the working directory, not in the src directory

[[Imported from SVN: r5176]]

m4/dune.m4

 #! /bin/sh
-# $Id: dune.m4 5163 2008-04-21 13:50:27Z christi $
+# $Id$
 # checks for dune-headers and everything they need
 
 # TODO
@@ -173,7 +173,7 @@ AC_DEFUN([DUNE_CHECK_MODULES],[
       HAVE_[]_DUNE_MODULE=0
 
       # define LTCXXCOMPILE like it will be defined in the Makefile
-      LTCXXLINK="$srcdir/libtool --tag=CXX --mode=link $CXX $CXXFLAGS $LDFLAGS"
+      LTCXXLINK="./libtool --tag=CXX --mode=link $CXX $CXXFLAGS $LDFLAGS"
       CXX="$LTCXXLINK"
 
       # use module LDFLAGS