$NetBSD: patch-configure,v 1.1 2016/09/18 07:46:09 dholland Exp $

Handle --without-mpi instead of using the resulting "no" as a path and
also in that case make it not probe for mpi headers.

--- configure.orig	2016-01-16 13:37:22.000000000 +0000
+++ configure
@@ -1322,6 +1322,10 @@ else
   MPIINCLUDE=
 fi
 
+if [ "x$MPIPACKAGE" = xno ]; then
+  unset MPIPACKAGE
+fi
+
 #AC_ARG_WITH(mpilib,[  --with-mpilib=PATH      Set location of MPI library directory],[MPILIB="-L$withval"], [MPILIB=])
 
 echo $ac_n "checking for MPI configuration""... $ac_c" 1>&6
@@ -1365,6 +1369,9 @@ fi
 #  fi
 
 echo $ac_n "checking for MPI header files""... $ac_c" 1>&6
+if [ "x${with_mpi}" = xno ]; then
+  echo "disabled" 1>&6
+else
 echo "configure:1369: checking for MPI header files" >&5
 if test -z "$MPIINCLUDE"; then
 cat > conftest.$ac_ext <<EOF
@@ -1404,7 +1411,7 @@ fi
 
 #AC_SUBST(MPILIB)
 
-
+fi # "x${with_mpi}" != xno
 
 
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