--- config/mpich.orig	2005-10-26 13:31:41.000000000 -0700
+++ config/mpich	2007-11-04 15:46:53.000000000 -0800
@@ -31,11 +31,13 @@
 	# $CC is an MPICH compiler. Grab the version numbers.
         ccversion=`echo $ccversion | cut -f3 -d' '`
 	case "$ccversion" in
-	    1.2.[0-5]*)
+	    # modified for mpich2 versioning
+	    1.0.[0-5]*)
 		hdf5_mpi_complex_derived_datatype_works='no'
 		;;
 	    *)
 		# assume okay
+		hdf5_mpi_complex_derived_datatype_works='yes'
 		;;
 	esac
     fi