Handle ADIOS append operations only when ADIOS support is enabled

Without this fix, build errors occur when SCORPIO is configured
without ADIOS support, since PIO_EADIOS2ERR is not declared in
that case.

Author: dqwu

src/clib/pio_darray.cpp

@@ -2169,6 +2169,7 @@ int PIOc_write_darray_impl(int ncid, int varid, int ioid, PIO_Offset arraylen, c
                         "Writing variable (%s, varid=%d) to file (%s, ncid=%d) failed. The file was not opened for writing, try reopening the file in write mode (use the PIO_WRITE flag)", pio_get_vname_from_file(file, varid), varid, pio_get_fname_from_file(file), file->pio_ncid);
     }
 
+#ifdef _ADIOS2
     if ((file->iotype == PIO_IOTYPE_ADIOS) || (file->iotype == PIO_IOTYPE_ADIOSC))
     {
         /* ADIOS type does not support open to append mode */
@@ -2189,6 +2190,7 @@ int PIOc_write_darray_impl(int ncid, int varid, int ioid, PIO_Offset arraylen, c
                            pio_get_fname_from_file(file), ncid);
         }
     }
+#endif
 
     /* Get decomposition information. */
     if (!(iodesc = pio_get_iodesc_from_id(ioid)))

src/clib/pio_getput_int.cpp

@@ -60,6 +60,7 @@ int spio_put_att_tc(int ncid, int varid, const char *name, nc_type atttype,
     spio_ltimer_start(ios->io_fstats->wr_timer_name);
     spio_ltimer_start(ios->io_fstats->tot_timer_name);
 
+#ifdef _ADIOS2
     if ((file->iotype == PIO_IOTYPE_ADIOS) || (file->iotype == PIO_IOTYPE_ADIOSC))
     {
         /* ADIOS type does not support open to append mode */
@@ -77,7 +78,11 @@ int spio_put_att_tc(int ncid, int varid, const char *name, nc_type atttype,
                            pio_get_vname_from_file(file, varid), varid, PIO_IS_NULL(name),
                            pio_get_fname_from_file(file), ncid);
         }
+    }
+#endif
 
+    if ((file->iotype == PIO_IOTYPE_ADIOS) || (file->iotype == PIO_IOTYPE_ADIOSC))
+    {
         GPTLstart("PIO:spio_put_att_tc_adios");
         GPTLstart("PIO:write_total_adios");
     }
@@ -2479,6 +2484,7 @@ int spio_put_vars_tc(int ncid, int varid, const PIO_Offset *start, const PIO_Off
     spio_ltimer_start(ios->io_fstats->wr_timer_name);
     spio_ltimer_start(ios->io_fstats->tot_timer_name);
 
+#ifdef _ADIOS2
     if ((file->iotype == PIO_IOTYPE_ADIOS) || (file->iotype == PIO_IOTYPE_ADIOSC))
     {
         /* ADIOS type does not support open to append mode */
@@ -2496,7 +2502,11 @@ int spio_put_vars_tc(int ncid, int varid, const PIO_Offset *start, const PIO_Off
                            pio_get_vname_from_file(file, varid), varid,
                            pio_get_fname_from_file(file), ncid);
         }
+    }
+#endif
 
+    if ((file->iotype == PIO_IOTYPE_ADIOS) || (file->iotype == PIO_IOTYPE_ADIOSC))
+    {
         GPTLstart("PIO:spio_put_vars_tc_adios");
         GPTLstart("PIO:write_total_adios");
     }