--- mpich-1.2.5/util/mpiinstall.in.old	2002-05-22 14:57:37.000000000 +0200
+++ mpich-1.2.5/util/mpiinstall.in	2002-05-22 15:03:30.000000000 +0200
@@ -109,6 +109,9 @@
 	-device=*) DEVICE=`echo A$arg | sed -e 's/A-device=//g'` 
 	           COMM=$DEVICE 
 		   arg="" ;;   # device not valid for mpeargs
+       -datapath=*)datadir=`echo $arg | sed -e 's/-datapath=//g'`
+                   datadir_override=1
+                   arg="" ;;  # datapath not valid for mpeargs
 	-manpath=*)mandir=`echo $arg | sed -e 's/-manpath=//g'` 
 		   mandir_override=1
 		   arg="" ;;   # manpath not valid for mpeargs
@@ -180,7 +183,9 @@
     if [ "$mandir_override" != 1 ] ; then
         mandir=$prefix/man
     fi
-    datadir=$prefix/share
+    if [ "$datadir_override" != 1 ] ; then
+        datadir=$prefix/share
+    fi
     docdir=$prefix/doc
 fi