diff --git a/m4/Makefile.am b/m4/Makefile.am
index 8546d8f9b1403d88a3738a79e389edcb29b82c8c..d00e9dbb3522607f0ce9846645eefbee78bbb165 100644
--- a/m4/Makefile.am
+++ b/m4/Makefile.am
@@ -6,7 +6,7 @@ ALLM4S = acx_blas.m4 acx_lapack.m4 acx_mpi.m4 acx_pthread.m4 \
          dune_docu.m4 dune_exprtmpl.m4  dune_linkcxx.m4 \
 	 dune.m4 \
          dune_mpi.m4 dune_streams.m4 \
-         f5.m4 fortran_overwrite.m4 grape.m4 hdf5.m4 \
+         f5.m4 fortran_overwrite.m4 hdf5.m4 \
          immdx_lib_metis.m4 inkscape.m4 mpi-config.m4 opengl.m4 \
          pardiso.m4 parmetis.m4 static_assert.m4 shared_ptr.m4 superlu-dist.m4 \
 	 superlu.m4 xdr.m4
diff --git a/m4/grape.m4 b/m4/grape.m4
deleted file mode 100644
index fd7525397d4808bb8194acddb71293cdc8ffa508..0000000000000000000000000000000000000000
--- a/m4/grape.m4
+++ /dev/null
@@ -1,103 +0,0 @@
-# $Id$
-# searches for albert-headers and libs
-
-# grape.h und libgr.a/libgr.so are located in the same discretory 
-
-AC_DEFUN([DUNE_PATH_GRAPE],[
-  AC_REQUIRE([AC_PROG_CC])
-  AC_REQUIRE([AC_PATH_XTRA])
-  AC_REQUIRE([DUNE_PATH_OPENGL])
-  AC_REQUIRE([AC_PROG_LD_GNU])
-
-  AC_ARG_WITH(grape,
-    AC_HELP_STRING([--with-grape=PATH],[directory with Grape inside]))
-
-# store old values
-ac_save_LDFLAGS="$LDFLAGS"
-ac_save_CPPFLAGS="$CPPFLAGS"
-ac_save_LIBS="$LIBS"
-
-# don't even start testing if X wasn't found
-if test "x$X_LIBS" != x && test x$with_grape != xno ; then
-
-  LIBS="$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS"
-
-  # is --with-grape=bla used?
-  if test x$with_grape != x ; then
-    if test -d $with_grape; then
-      # expand tilde / other stuff
-      GRAPEROOT=`cd $with_grape && pwd`
-    else
-      AC_MSG_ERROR([directory $with_grape does not exist])
-    fi      
-  else
-    # set some kind of default grape-path...
-    GRAPEROOT="/usr/local/grape/"
-  fi
-
-  CPPFLAGS="$CPPFLAGS -I$GRAPEROOT"
-  LDFLAGS="$LDFLAGS -L$GRAPEROOT"
-
-  # check for header
-  # we have to use CC for checking the header!!
-  AC_LANG_PUSH([C])
-  AC_CHECK_HEADER([grape.h],
-    [GRAPE_CPPFLAGS="-I$GRAPEROOT"
-     HAVE_GRAPE="1"])
-  AC_LANG_POP
-
-  # check for lib if header was found
-  if test x$HAVE_GRAPE = x1 ; then
-    # if GL was found, add it implicitly...
-    #   This is not the best choice, but testing without GL first and
-    #   then trying again fails due to caching...
-    CPPFLAGS="$GRAPE_CPPFLAGS $GL_CFLAGS -DENABLE_GRAPE"
-    LIBS="$LIBS $GL_LIBS -lXext"
-    LDFLAGS="$LDFLAGS $GL_LDFLAGS"
-
-    # if we use the gnu linker add the grape path 
-    if test x$lt_cv_prog_gnu_ld = xyes ; then 
-      GRAPE_LINKER_FLAGS="-Wl,--rpath -Wl,$GRAPEROOT"
-    fi  
-
-    AC_CHECK_LIB(gr, grape, 
-      [GRAPE_LDFLAGS="-L$GRAPEROOT $GL_LDFLAGS $GRAPE_LINKER_FLAGS"
-       GRAPE_CPPFLAGS="$CPPFLAGS"
-       GRAPE_LIBS="-lgr $GL_LIBS -lXext"], 
-      [HAVE_GRAPE="0"])
-  fi
-
-  # did it work?
-  if test x$HAVE_GRAPE = x1 ; then
-    AC_SUBST(GRAPE_LIBS, $GRAPE_LIBS)
-    AC_SUBST(GRAPE_LDFLAGS, $GRAPE_LDFLAGS)
-    AC_SUBST(GRAPE_CPPFLAGS, $GRAPE_CPPFLAGS)
-    AC_DEFINE(HAVE_GRAPE, ENABLE_GRAPE,
-          [This is only true if grape-library was found by configure 
-           _and_ if the application uses the GRAPE_CPPFLAGS])
-
-    # add to global list
-    DUNE_PKG_LDFLAGS="$DUNE_PKG_LDFLAGS $GRAPE_LDFLAGS"
-    DUNE_PKG_LIBS="$DUNE_PKG_LIBS $GRAPE_LIBS"
-    DUNE_PKG_CPPFLAGS="$DUNE_PKG_CPPFLAGS $GRAPE_CPPFLAGS"
-  fi
-fi
-
-# report to summary
-if test x$HAVE_GRAPE = x1 ; then
-  with_grape="yes"
-else
-  with_grape="no"
-fi
-
-# also tell automake	
-AM_CONDITIONAL(GRAPE, test x$HAVE_GRAPE = x1)
-
-# reset old values
-LIBS="$ac_save_LIBS"
-CPPFLAGS="$ac_save_CPPFLAGS"
-LDFLAGS="$ac_save_LDFLAGS"
-  
-DUNE_ADD_SUMMARY_ENTRY([Grape],[$with_grape])
-
-])