further progress on netcdf integration

configure.ac

@@ -278,7 +278,7 @@ fi
 # These are needed by ncdispatch.h. Only build with HDF5 parallel
 # versions of netCDF. */
 if test "x$enable_netcdf_integration" = xyes; then
-   AC_SUBST([HDF5_PARALLEL], [1])
+  AC_DEFINE([HDF5_PARALLEL],[1],[Does HDF5 library provide parallel access])
 fi
 
 AM_CONDITIONAL(BUILD_NCINT, [test "x$enable_netcdf_integration" = xyes])

src/ncint/ncint_pio.c

@@ -21,3 +21,14 @@ nc_init_intracomm(MPI_Comm comp_comm, int num_iotasks, int stride, int base, int
 {
     return PIOc_Init_Intracomm(comp_comm, num_iotasks, stride, base, rearr, iosysidp);
 }
+
+/**
+ * Same as PIOc_free_iosystem().
+ *
+ * @author Ed Hartnett
+ */
+int
+nc_free_iosystem(int iosysid)
+{
+    return PIOc_free_iosystem(iosysid);
+}

tests/ncint/tst_pio_udf.c

@@ -58,6 +58,9 @@ main(int argc, char **argv)
         if (nc_inq_format(ncid, NULL) != TEST_VAL_42) ERR;
         if (nc_inq_format_extended(ncid, NULL, NULL) != TEST_VAL_42) ERR;
         if (nc_abort(ncid) != TEST_VAL_42) ERR;
+
+        /* Close the iosystem. */
+        if (nc_free_iosystem(iosysid)) ERR;
     }
     SUMMARIZE_ERR;