--- src/mpi/romio/configure.orig	2009-09-14 17:30:33.267403501 -0700
+++ src/mpi/romio/configure	2009-09-14 17:39:40.079654437 -0700
@@ -2033,6 +2033,12 @@
 # Check whether --with-pvfs2 was given.
 if test "${with_pvfs2+set}" = set; then
   withval=$with_pvfs2;
+  if test "x$withval" = "xno" ; then
+    without_pvfs2=yes
+    with_pvfs2=""
+  fi
+else
+  without_pvfs2=yes
 fi
 
 
@@ -7577,11 +7583,16 @@
 	if test -n "${with_pvfs2}" -o -n "${file_system_pvfs2}" ; then
 		# the user either told us where pvfs is or asked for it in
 		# --with-file-system (or both)
-		CFLAGS="$CFLAGS $( $PVFS2_CONFIG --cflags)"
-		LIBS="$LIBS $( $PVFS2_CONFIG --libs)"
-		ROMIO_LIBLIST="$ROMIO_LIBLIST $LIBS"
-		FILE_SYSTEM="pvfs2 $FILE_SYSTEM"
-		file_system_pvfs2=1
+		if test "x$without_pvfs2" = "xyes" ; then
+			ROMIO_LIBLIST="$ROMIO_LIBLIST $LIBS"
+			file_system_pvfs2=0
+		else
+			CFLAGS="$CFLAGS $( $PVFS2_CONFIG --cflags)"
+			LIBS="$LIBS $( $PVFS2_CONFIG --libs)"
+			ROMIO_LIBLIST="$ROMIO_LIBLIST $LIBS"
+			FILE_SYSTEM="pvfs2 $FILE_SYSTEM"
+			file_system_pvfs2=1
+		fi
 	fi
 fi