[svn-r29924] Description:

    Bring h5format_convert tool from revise_chunks branch to trunk.

Tested on:
    MacoSX/64 10.11.4 (amazon) w/serial, parallel & production
    (h5committest forthcoming)

63 files changed, 5022 insertions, 52 deletions

diff --git a/MANIFEST b/MANIFEST
index 68ac6fa..6dd890e 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -1240,6 +1240,57 @@
 ./tools/h5diff/testh5diff.sh.in
 ./tools/h5diff/testph5diff.sh.in
 
+# h5format_convert sources
+./tools/h5format_convert/Makefile.am
+./tools/h5format_convert/h5fc_chk_idx.c
+./tools/h5format_convert/h5fc_gentest.c
+./tools/h5format_convert/h5format_convert.c
+./tools/h5format_convert/testfiles/h5fc_v_n_all.ddl
+./tools/h5format_convert/testfiles/h5fc_v_bt1.ddl
+./tools/h5format_convert/testfiles/h5fc_v_non_chunked.ddl
+./tools/h5format_convert/testfiles/h5fc_d_file.ddl
+./tools/h5format_convert/testfiles/h5fc_v_ndata_bt1.ddl
+./tools/h5format_convert/testfiles/h5fc_dname.ddl
+./tools/h5format_convert/testfiles/h5fc_nonexistdset_file.ddl
+./tools/h5format_convert/testfiles/h5fc_help.ddl
+./tools/h5format_convert/testfiles/h5fc_v_all.ddl
+./tools/h5format_convert/testfiles/h5fc_nooption.ddl
+./tools/h5format_convert/testfiles/h5fc_v_n_1d.ddl
+./tools/h5format_convert/testfiles/h5fc_nonexistfile.ddl
+./tools/h5format_convert/testfiles/h5fc_non_v3.h5
+./tools/h5format_convert/testfiles/h5fc_edge_v3.h5
+./tools/h5format_convert/testfiles/h5fc_ext1_f.h5
+./tools/h5format_convert/testfiles/h5fc_ext1_i.h5
+./tools/h5format_convert/testfiles/h5fc_ext1_s.h5
+./tools/h5format_convert/testfiles/h5fc_ext2_if.h5
+./tools/h5format_convert/testfiles/h5fc_ext2_is.h5
+./tools/h5format_convert/testfiles/h5fc_ext2_sf.h5
+./tools/h5format_convert/testfiles/h5fc_ext3_isf.h5
+./tools/h5format_convert/testfiles/h5fc_ext_none.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext1_f.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext1_i.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext1_s.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext2_if.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext2_is.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext2_sf.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext3_isf.h5
+./tools/h5format_convert/testfiles/old_h5fc_ext_none.h5
+./tools/h5format_convert/testfiles/h5fc_ext1_f.ddl
+./tools/h5format_convert/testfiles/h5fc_ext1_i.ddl
+./tools/h5format_convert/testfiles/h5fc_ext1_s.ddl
+./tools/h5format_convert/testfiles/h5fc_ext2_if.ddl
+./tools/h5format_convert/testfiles/h5fc_ext2_is.ddl
+./tools/h5format_convert/testfiles/h5fc_ext2_sf.ddl
+./tools/h5format_convert/testfiles/h5fc_ext3_isf.ddl
+./tools/h5format_convert/testfiles/old_h5fc_ext1_f.ddl
+./tools/h5format_convert/testfiles/old_h5fc_ext1_i.ddl
+./tools/h5format_convert/testfiles/old_h5fc_ext1_s.ddl
+./tools/h5format_convert/testfiles/old_h5fc_ext2_if.ddl
+./tools/h5format_convert/testfiles/old_h5fc_ext2_is.ddl
+./tools/h5format_convert/testfiles/old_h5fc_ext2_sf.ddl
+./tools/h5format_convert/testfiles/old_h5fc_ext3_isf.ddl
+./tools/h5format_convert/testh5fc.sh.in
+
 # h5repack sources
 ./tools/h5repack/Makefile.am
 ./tools/h5repack/dynlib_rpk.c
@@ -2956,6 +3007,7 @@
 ./tools/h5copy/Makefile.in
 ./tools/h5diff/Makefile.in
 ./tools/h5dump/Makefile.in
+./tools/h5format_convert/Makefile.in
 ./tools/h5import/Makefile.in
 ./tools/h5jam/Makefile.in
 ./tools/h5ls/Makefile.in
diff --git a/configure.ac b/configure.ac
index 94e508b..b6bb44c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3544,6 +3544,8 @@ AC_CONFIG_FILES([src/libhdf5.settings
                  tools/misc/vds/Makefile
                  tools/h5stat/testh5stat.sh
                  tools/h5stat/Makefile
+                 tools/h5format_convert/Makefile
+                 tools/h5format_convert/testh5fc.sh
                  tools/perform/Makefile
                  examples/Makefile
                  examples/run-c-ex.sh
diff --git a/src/H5D.c b/src/H5D.c
index beb7cfe..aa932b1 100644
--- a/src/H5D.c
+++ b/src/H5D.c
@@ -379,7 +379,7 @@ H5Dget_space(hid_t dset_id)
 
 done:
     FUNC_LEAVE_API(ret_value)
-}
+} /* end H5Dget_space() */
 
 
 /*-------------------------------------------------------------------------
@@ -415,7 +415,7 @@ H5Dget_space_status(hid_t dset_id, H5D_space_status_t *allocation)
 
 done:
     FUNC_LEAVE_API(ret_value)
-}
+} /* H5Dget_space_status() */
 
 
 /*-------------------------------------------------------------------------
@@ -955,3 +955,103 @@ done:
     FUNC_LEAVE_API(ret_value)
 } /* H5Dflush */
 
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Dformat_convert (Internal)
+ *
+ * Purpose:     For chunked: 
+ *		  Convert the chunk indexing type to version 1 B-tree if not
+ *		For compact/contiguous: 
+ *		  Downgrade layout version to 3 if greater than 3
+ *		For virtual: no conversion
+ *
+ * Return:      Non-negative on success, negative on failure
+ *
+ * Programmer:  Vailin Choi
+ *              Feb 2015
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Dformat_convert(hid_t dset_id)
+{
+    H5D_t *dset;                /* Dataset to refresh */
+    herr_t ret_value = SUCCEED; /* return value */
+    
+    FUNC_ENTER_API(FAIL)
+    H5TRACE1("e", "i", dset_id);
+
+    /* Check args */
+    if(NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset")
+
+    switch(dset->shared->layout.type) {
+	case H5D_CHUNKED:
+	    /* Convert the chunk indexing type to version 1 B-tree if not */
+	    if(dset->shared->layout.u.chunk.idx_type != H5D_CHUNK_IDX_BTREE)
+                if((H5D__format_convert(dset, H5AC_ind_read_dxpl_id)) < 0)
+                    HGOTO_ERROR(H5E_DATASET, H5E_CANTLOAD, FAIL, "unable to downgrade chunk indexing type for dataset")
+	    break;
+
+	case H5D_CONTIGUOUS:
+	case H5D_COMPACT:
+	    /* Downgrade the layout version to 3 if greater than 3 */
+	    if(dset->shared->layout.version > H5O_LAYOUT_VERSION_DEFAULT)
+                if((H5D__format_convert(dset, H5AC_ind_read_dxpl_id)) < 0)
+                    HGOTO_ERROR(H5E_DATASET, H5E_CANTLOAD, FAIL, "unable to downgrade layout version for dataset")
+	    break;
+
+	case H5D_VIRTUAL:
+	    /* Nothing to do even though layout is version 4 */
+	    break;
+
+        case H5D_LAYOUT_ERROR:
+        case H5D_NLAYOUTS:
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid dataset layout type")
+
+	default: 
+	    HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "unknown dataset layout type")
+    } /* end switch */
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* H5Dformat_convert */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Dget_chunk_index_type (Internal)
+ *
+ * Purpose:     Retrieve a dataset's chunk indexing type
+ *
+ * Return:      Non-negative on success, negative on failure
+ *
+ * Programmer:  Vailin Choi
+ *              Feb 2015
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Dget_chunk_index_type(hid_t did, H5D_chunk_index_t *idx_type)
+{
+    H5D_t *dset;                /* Dataset to refresh */
+    herr_t ret_value = SUCCEED; /* return value */
+    
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "i*Dk", did, idx_type);
+
+    /* Check args */
+    if(NULL == (dset = (H5D_t *)H5I_object_verify(did, H5I_DATASET)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset")
+
+    /* Should be a chunked dataset */
+    if(dset->shared->layout.type != H5D_CHUNKED)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dataset is not chunked")
+
+    /* Get the chunk indexing type */
+    if(idx_type)
+        *idx_type = dset->shared->layout.u.chunk.idx_type;
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* H5Dget_chunk_index_type() */
+
diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c
index da6a717..f4f9104 100644
--- a/src/H5Dchunk.c
+++ b/src/H5Dchunk.c
@@ -200,6 +200,13 @@ typedef struct H5D_chunk_it_ud4_t {
     uint32_t            *chunk_dim;             /* Chunk dimensions */
 } H5D_chunk_it_ud4_t;
 
+/* Callback info for iteration to format convert chunks */
+typedef struct H5D_chunk_it_ud5_t {
+    H5D_chk_idx_info_t  *new_idx_info;          /* Dest. chunk index info object */
+    unsigned            dset_ndims;             /* Number of dimensions in dataset */
+    hsize_t       	*dset_dims;             /* Dataset dimensions */
+} H5D_chunk_it_ud5_t;
+
 /* Callback info for nonexistent readvv operation */
 typedef struct H5D_chunk_readvv_ud_t {
     unsigned char *rbuf;        /* Read buffer to initialize */
@@ -250,6 +257,9 @@ H5D__nonexistent_readvv(const H5D_io_info_t *io_info,
     size_t chunk_max_nseq, size_t *chunk_curr_seq, size_t chunk_len_arr[], hsize_t chunk_offset_arr[],
     size_t mem_max_nseq, size_t *mem_curr_seq, size_t mem_len_arr[], hsize_t mem_offset_arr[]);
 
+/* format convert cb */
+static int H5D__chunk_format_convert_cb(const H5D_chunk_rec_t *chunk_rec, void *_udata);
+
 /* Helper routines */
 static herr_t H5D__chunk_set_info_real(H5O_layout_chunk_t *layout, unsigned ndims,
     const hsize_t *curr_dims, const hsize_t *max_dims);
@@ -6336,3 +6346,135 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* H5D__chunk_file_alloc() */
 
+
+/*-------------------------------------------------------------------------
+ * Function:    H5D__chunk_format_convert_cb
+ *
+ * Purpose:     Callback routine to insert chunk address into v1 B-tree
+ *              chunk index.
+ *
+ * Return:      Success:        Non-negative
+ *              Failure:        Negative
+ *
+ * Programmer:  Vailin Choi
+ *              Feb 2015
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+H5D__chunk_format_convert_cb(const H5D_chunk_rec_t *chunk_rec, void *_udata)
+{
+    H5D_chunk_it_ud5_t *udata = (H5D_chunk_it_ud5_t *)_udata;	/* User data */
+    H5D_chk_idx_info_t *new_idx_info;  	/* The new chunk index information */
+    H5D_chunk_ud_t  insert_udata;	/* Chunk information to be inserted */
+    haddr_t chunk_addr;			/* Chunk address */
+    size_t nbytes;			/* Chunk size */
+    void *buf = NULL;			/* Pointer to buffer of chunk data */
+    int  ret_value = H5_ITER_CONT;   	/* Return value */
+
+    FUNC_ENTER_STATIC
+
+    /* Set up */
+    new_idx_info = udata->new_idx_info;
+    H5_CHECKED_ASSIGN(nbytes, size_t, chunk_rec->nbytes, uint32_t);
+    chunk_addr = chunk_rec->chunk_addr;
+
+    if(new_idx_info->pline->nused &&
+          (new_idx_info->layout->flags & H5O_LAYOUT_CHUNK_DONT_FILTER_PARTIAL_BOUND_CHUNKS) &&
+          (H5D__chunk_is_partial_edge_chunk(udata->dset_ndims, new_idx_info->layout->dim, chunk_rec->scaled, udata->dset_dims))) {
+	/* This is a partial non-filtered edge chunk */
+	/* Convert the chunk to a filtered edge chunk for v1 B-tree chunk index */
+
+	unsigned filter_mask = chunk_rec->filter_mask;
+	H5Z_cb_t  cb_struct;        	/* Filter failure callback struct */
+	size_t read_size = nbytes;	/* Bytes to read */
+
+	HDassert(read_size == new_idx_info->layout->size);
+
+	cb_struct.func = NULL; /* no callback function when failed */
+
+	/* Allocate buffer for chunk data */
+	if(NULL == (buf = H5MM_malloc(read_size)))
+	    HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, H5_ITER_ERROR, "memory allocation failed for raw data chunk")
+
+	/* Read the non-filtered edge chunk */
+        if(H5F_block_read(new_idx_info->f, H5FD_MEM_DRAW, chunk_addr, read_size, H5AC_rawdata_dxpl_id, buf) < 0)
+	    HGOTO_ERROR(H5E_IO, H5E_READERROR, H5_ITER_ERROR, "unable to read raw data chunk")
+
+	/* Pass the chunk through the pipeline */
+	if(H5Z_pipeline(new_idx_info->pline, 0, &filter_mask, H5Z_NO_EDC, cb_struct, &nbytes, &read_size, &buf) < 0)
+	    HGOTO_ERROR(H5E_PLINE, H5E_CANTFILTER, H5_ITER_ERROR, "output pipeline failed")
+
+#if H5_SIZEOF_SIZE_T > 4
+        /* Check for the chunk expanding too much to encode in a 32-bit value */
+	if(nbytes > ((size_t)0xffffffff))
+	    HGOTO_ERROR(H5E_DATASET, H5E_BADRANGE, H5_ITER_ERROR, "chunk too large for 32-bit length")
+#endif /* H5_SIZEOF_SIZE_T > 4 */
+
+	/* Allocate space for the filtered chunk */
+	if((chunk_addr = H5MF_alloc(new_idx_info->f, H5FD_MEM_DRAW, new_idx_info->dxpl_id, (hsize_t)nbytes)) == HADDR_UNDEF)
+	    HGOTO_ERROR(H5E_DATASET, H5E_NOSPACE, H5_ITER_ERROR, "file allocation failed for filtered chunk")
+	HDassert(H5F_addr_defined(chunk_addr));
+
+	/* Write the filtered chunk to disk */
+	if(H5F_block_write(new_idx_info->f, H5FD_MEM_DRAW, chunk_addr, nbytes, H5AC_rawdata_dxpl_id, buf) < 0)
+	    HGOTO_ERROR(H5E_DATASET, H5E_WRITEERROR, H5_ITER_ERROR, "unable to write raw data to file")
+    } /* end if */
+
+    /* Set up chunk information for insertion to chunk index */
+    insert_udata.chunk_block.offset = chunk_addr;
+    insert_udata.chunk_block.length = nbytes;
+    insert_udata.filter_mask = chunk_rec->filter_mask;
+    insert_udata.common.scaled = chunk_rec->scaled;
+    insert_udata.common.layout = new_idx_info->layout;
+    insert_udata.common.storage = new_idx_info->storage;
+
+    /* Insert chunk into the v1 B-tree chunk index */
+    if((new_idx_info->storage->ops->insert)(new_idx_info, &insert_udata, NULL) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_CANTINSERT, H5_ITER_ERROR, "unable to insert chunk addr into index")
+
+done:
+    if(buf)
+        H5MM_xfree(buf);
+
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5D__chunk_format_convert_cb() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5D__chunk_format_convert
+ *
+ * Purpose:     Iterate over the chunks for the current chunk index and insert the
+ *		the chunk addresses into v1 B-tree chunk index via callback.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Vailin Choi
+ *              Feb 2015
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5D__chunk_format_convert(H5D_t *dset, H5D_chk_idx_info_t *idx_info, H5D_chk_idx_info_t *new_idx_info)
+{
+    H5D_chunk_it_ud5_t udata;		/* User data */
+    herr_t      ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_PACKAGE
+
+    /* Check args */
+    HDassert(dset);
+
+    /* Set up user data */
+    udata.new_idx_info = new_idx_info;
+    udata.dset_ndims = dset->shared->ndims;
+    udata.dset_dims = dset->shared->curr_dims;
+
+    /*  terate over the chunks in the current index and insert the chunk addresses into version 1 B-tree index */
+    if((dset->shared->layout.storage.u.chunk.ops->iterate)(idx_info, H5D__chunk_format_convert_cb, &udata) < 0)
+	HGOTO_ERROR(H5E_DATASET, H5E_BADITER, FAIL, "unable to iterate over chunk index to chunk info")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5D__chunk_format_convert() */
+
diff --git a/src/H5Dint.c b/src/H5Dint.c
index ae25d17..322776b 100644
--- a/src/H5Dint.c
+++ b/src/H5Dint.c
@@ -2832,6 +2832,126 @@ done:
 
 
 /*-------------------------------------------------------------------------
+ * Function:    H5D__format_convert
+ *
+ * Purpose:     For chunked: downgrade the chunk indexing type to version 1 B-tree
+ *              For compact/contiguous: downgrade layout version to 3
+ *
+ * Return:	Success:	Non-negative
+ *		Failure:	Negative
+ *
+ * Programmer:  Vailin Choi
+ *              Feb 2015
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5D__format_convert(H5D_t *dataset, hid_t dxpl_id)
+{
+    H5O_t *oh = NULL;                   	/* Pointer to dataset's object header */
+    H5D_chk_idx_info_t new_idx_info;    	/* Index info for the new layout */
+    H5D_chk_idx_info_t idx_info;        	/* Index info for the current layout */
+    H5O_layout_t newlayout;			/* The new layout */
+    herr_t ret_value = SUCCEED;         	/* Return value */
+
+    FUNC_ENTER_PACKAGE_TAG(dxpl_id, dataset->oloc.addr, FAIL)
+
+    /* Check args */
+    HDassert(dataset);
+
+    switch(dataset->shared->layout.type) {
+        case H5D_CHUNKED:
+	    HDassert(dataset->shared->layout.u.chunk.idx_type != H5D_CHUNK_IDX_BTREE);
+
+	    /* Set up the current index info */
+	    idx_info.f = dataset->oloc.file;
+	    idx_info.dxpl_id = dxpl_id;
+	    idx_info.pline = &dataset->shared->dcpl_cache.pline;
+	    idx_info.layout = &dataset->shared->layout.u.chunk;
+	    idx_info.storage = &dataset->shared->layout.storage.u.chunk;
+
+	    /* Copy the current layout info to the new layout */
+	    HDmemcpy(&newlayout, &dataset->shared->layout, sizeof(H5O_layout_t));
+
+	    /* Set up info for version 1 B-tree in the new layout */
+	    newlayout.version = H5O_LAYOUT_VERSION_3;
+	    newlayout.storage.u.chunk.idx_type = H5D_CHUNK_IDX_BTREE;
+	    newlayout.storage.u.chunk.idx_addr = HADDR_UNDEF;
+	    newlayout.storage.u.chunk.ops = H5D_COPS_BTREE;
+	    newlayout.storage.u.chunk.u.btree.shared = NULL;
+
+	    /* Set up the index info to version 1 B-tree */
+	    new_idx_info.f = dataset->oloc.file;
+	    new_idx_info.dxpl_id = dxpl_id;
+	    new_idx_info.pline = &dataset->shared->dcpl_cache.pline;
+	    new_idx_info.layout = &newlayout.u.chunk;
+	    new_idx_info.storage = &newlayout.storage.u.chunk;
+
+	    /* Initialize version 1 B-tree */
+	    if(newlayout.storage.u.chunk.ops->init && (newlayout.storage.u.chunk.ops->init)(&new_idx_info, dataset->shared->space, dataset->oloc.addr) < 0)
+		HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "can't initialize indexing information")
+    
+	    /* If the current chunk index exists */
+	    if(H5F_addr_defined(dataset->shared->layout.storage.u.chunk.idx_addr)) {
+		/* Create v1 B-tree chunk index */
+		if((newlayout.storage.u.chunk.ops->create)(&new_idx_info) < 0)
+		    HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "can't create chunk index")
+
+		/* Iterate over the chunks in the current index and insert the chunk addresses 
+		 * into the version 1 B-tree chunk index */
+		if(H5D__chunk_format_convert(dataset, &idx_info, &new_idx_info) < 0)
+		    HGOTO_ERROR(H5E_DATASET, H5E_BADITER, FAIL, "unable to iterate over chunk index to chunk info")
+	    } /* end if */
+
+	    /* Release the old (i.e. current) chunk index */
+	    if(dataset->shared->layout.storage.u.chunk.ops->dest && (dataset->shared->layout.storage.u.chunk.ops->dest)(&idx_info) < 0)
+		HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to release chunk index info")
+
+	    /* Delete the "layout" message */
+	    if(H5O_msg_remove(&dataset->oloc, H5O_LAYOUT_ID, H5O_ALL, TRUE, dxpl_id) < 0)
+		HGOTO_ERROR(H5E_SYM, H5E_CANTDELETE, FAIL, "unable to delete layout message")
+
+	    HDmemcpy(&dataset->shared->layout, &newlayout, sizeof(H5O_layout_t));
+
+	    if(NULL == (oh = H5O_pin(&dataset->oloc, dxpl_id)))
+		HGOTO_ERROR(H5E_DATASET, H5E_CANTPIN, FAIL, "unable to pin dataset object header")
+
+	    /* Append the new layout message to the object header */
+	    if(H5O_msg_append_oh(dataset->oloc.file, dxpl_id, oh, H5O_LAYOUT_ID, 0, H5O_UPDATE_TIME, &newlayout) < 0)
+		HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to update old fill value header message")
+
+	    break;
+
+	case H5D_CONTIGUOUS:
+        case H5D_COMPACT:
+	    HDassert(dataset->shared->layout.version > H5O_LAYOUT_VERSION_DEFAULT);
+	    dataset->shared->layout.version = H5O_LAYOUT_VERSION_DEFAULT;
+	    if(H5O_msg_write(&(dataset->oloc), H5O_LAYOUT_ID, 0, H5O_UPDATE_TIME, &(dataset->shared->layout), dxpl_id) < 0)
+		HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to update layout message")
+	    break;
+
+	case H5D_VIRTUAL:
+	    HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "virtual dataset layout not supported")
+
+        case H5D_LAYOUT_ERROR:
+        case H5D_NLAYOUTS:
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid dataset layout type")
+            
+	default: 
+	    HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "unknown dataset layout type")
+    } /* end switch */
+
+done:
+    /* Release pointer to object header */
+    if(oh != NULL)
+        if(H5O_unpin(oh) < 0)
+            HDONE_ERROR(H5E_DATASET, H5E_CANTUNPIN, FAIL, "unable to unpin dataset object header")
+
+    FUNC_LEAVE_NOAPI_TAG(ret_value, FAIL)
+} /* end H5D__format_convert() */
+
+
+/*-------------------------------------------------------------------------
  * Function:    H5D__mark
  *
  * Purpose:     Mark some aspect of a dataset as dirty
diff --git a/src/H5Dpkg.h b/src/H5Dpkg.h
index c0b8b28..3b2727f 100644
--- a/src/H5Dpkg.h
+++ b/src/H5Dpkg.h
@@ -583,6 +583,9 @@ H5_DLL herr_t H5D__mark(const H5D_t *dataset, hid_t dxpl_id, unsigned flags);
 H5_DLL herr_t H5D_set_io_info_dxpls(H5D_io_info_t *io_info, hid_t dxpl_id);
 #endif /* H5_DEBUG_BUILD */
 
+/* To convert a dataset's chunk indexing type to v1 B-tree */
+H5_DLL herr_t H5D__format_convert(H5D_t *dataset, hid_t dxpl_id);
+
 /* Internal I/O routines */
 H5_DLL herr_t H5D__read(H5D_t *dataset, hid_t mem_type_id,
     const H5S_t *mem_space, const H5S_t *file_space, hid_t dset_xfer_plist,
@@ -675,6 +678,7 @@ H5_DLL herr_t H5D__chunk_direct_write(const H5D_t *dset, hid_t dxpl_id, uint32_t
 #ifdef H5D_CHUNK_DEBUG
 H5_DLL herr_t H5D__chunk_stats(const H5D_t *dset, hbool_t headers);
 #endif /* H5D_CHUNK_DEBUG */
+H5_DLL herr_t H5D__chunk_format_convert(H5D_t *dset, H5D_chk_idx_info_t *idx_info, H5D_chk_idx_info_t *new_idx_info);
 
 /* Functions that operate on compact dataset storage */
 H5_DLL herr_t H5D__compact_fill(const H5D_t *dset, hid_t dxpl_id);
diff --git a/src/H5Dpublic.h b/src/H5Dpublic.h
index e1555b9..831e811 100644
--- a/src/H5Dpublic.h
+++ b/src/H5Dpublic.h
@@ -167,6 +167,10 @@ H5_DLL herr_t H5Dgather(hid_t src_space_id, const void *src_buf, hid_t type_id,
     size_t dst_buf_size, void *dst_buf, H5D_gather_func_t op, void *op_data);
 H5_DLL herr_t H5Ddebug(hid_t dset_id);
 
+/* Internal API routines */
+H5_DLL herr_t H5Dformat_convert(hid_t dset_id);
+H5_DLL herr_t H5Dget_chunk_index_type(hid_t did, H5D_chunk_index_t *idx_type);
+
 /* Symbols defined for compatibility with previous versions of the HDF5 API.
  *
  * Use of these symbols is deprecated.
diff --git a/src/H5F.c b/src/H5F.c
index c96c419..9f78440 100644
--- a/src/H5F.c
+++ b/src/H5F.c
@@ -1442,3 +1442,73 @@ done:
     FUNC_LEAVE_API(ret_value)
 } /* end H5Fclear_elink_file_cache() */
 
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Fformat_convert_super (Internal)
+ *
+ * Purpose:	Downgrade the superblock version to v2 and
+ *		downgrade persistent file space to non-persistent
+ *		for 1.8 library.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Vailin Choi
+ *              Jan 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Fformat_convert(hid_t fid)
+{
+    herr_t      ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE1("e", "i", fid);
+
+    if(H5I_FILE == H5I_get_type(fid)) {
+        H5F_t	*f;                     /* File to flush */
+        hbool_t	mark_dirty = FALSE;
+
+        /* Get file object */
+        if(NULL == (f = (H5F_t *)H5I_object(fid)))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid file identifier")
+
+        /* Check if the superblock should be downgraded */
+        if(f->shared->sblock->super_vers > HDF5_SUPERBLOCK_VERSION_V18_LATEST) {
+            f->shared->sblock->super_vers = HDF5_SUPERBLOCK_VERSION_V18_LATEST;
+            mark_dirty = TRUE;
+        } /* end if */
+
+        /* Check for persistent freespace manager, which needs to be downgraded */
+        if(!(f->shared->fs_strategy == H5F_FILE_SPACE_STRATEGY_DEF &&
+                f->shared->fs_threshold == H5F_FREE_SPACE_THRESHOLD_DEF)) {
+            /* Check to remove free-space manager info message from superblock extension */
+            if(H5F_addr_defined(f->shared->sblock->ext_addr))
+                if(H5F_super_ext_remove_msg(f, H5AC_ind_read_dxpl_id, H5O_FSINFO_ID) < 0)
+                    HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "error in removing message from superblock extension")
+
+            /* Close freespace manager */
+            if(H5MF_try_close(f, H5AC_ind_read_dxpl_id) < 0)
+                HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to free free-space address")
+
+            /* Set non-persistent freespace manager */
+            f->shared->fs_strategy = H5F_FILE_SPACE_STRATEGY_DEF;
+            f->shared->fs_threshold = H5F_FREE_SPACE_THRESHOLD_DEF;
+
+            /* Indicate that the superblock should be marked dirty */
+            mark_dirty = TRUE;
+        } /* end if */
+
+        /* Check if we should mark the superblock dirty */
+        if(mark_dirty)
+            /* Mark superblock as dirty */
+            if(H5F_super_dirty(f) < 0)
+                HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty")
+    } /* end if */
+    else
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Fformat_convert() */
+
diff --git a/src/H5Fprivate.h b/src/H5Fprivate.h
index 93965e0..7d45ed9 100644
--- a/src/H5Fprivate.h
+++ b/src/H5Fprivate.h
@@ -484,6 +484,7 @@
 #define HDF5_SUPERBLOCK_VERSION_1	1	/* Version with non-default B-tree 'K' value */
 #define HDF5_SUPERBLOCK_VERSION_2	2	/* Revised version with superblock extension and checksum */
 #define HDF5_SUPERBLOCK_VERSION_LATEST	HDF5_SUPERBLOCK_VERSION_2	/* The maximum super block format    */
+#define HDF5_SUPERBLOCK_VERSION_V18_LATEST HDF5_SUPERBLOCK_VERSION_2    /* The latest superblock version for v18 */
 #define HDF5_FREESPACE_VERSION	        0	/* of the Free-Space Info	  */
 #define HDF5_OBJECTDIR_VERSION	        0	/* of the Object Directory format */
 #define HDF5_SHAREDHEADER_VERSION       0	/* of the Shared-Header Info	  */
diff --git a/src/H5Fpublic.h b/src/H5Fpublic.h
index 6fa18e1..fcccf07 100644
--- a/src/H5Fpublic.h
+++ b/src/H5Fpublic.h
@@ -219,6 +219,7 @@ H5_DLL herr_t H5Fget_info2(hid_t obj_id, H5F_info2_t *finfo);
 H5_DLL ssize_t H5Fget_free_sections(hid_t file_id, H5F_mem_t type,
     size_t nsects, H5F_sect_info_t *sect_info/*out*/);
 H5_DLL herr_t H5Fclear_elink_file_cache(hid_t file_id);
+H5_DLL herr_t H5Fformat_convert(hid_t fid);
 #ifdef H5_HAVE_PARALLEL
 H5_DLL herr_t H5Fset_mpi_atomicity(hid_t file_id, hbool_t flag);
 H5_DLL herr_t H5Fget_mpi_atomicity(hid_t file_id, hbool_t *flag);
diff --git a/src/H5MF.c b/src/H5MF.c
index 15e7a96..fcc4d46 100644
--- a/src/H5MF.c
+++ b/src/H5MF.c
@@ -86,6 +86,7 @@ typedef struct {
 /* Allocator routines */
 static herr_t H5MF_alloc_create(H5F_t *f, hid_t dxpl_id, H5FD_mem_t type);
 static herr_t H5MF_alloc_close(H5F_t *f, hid_t dxpl_id, H5FD_mem_t type);
+static herr_t H5MF__close_delete(H5F_t *f, hid_t dxpl_id);
 
 
 /*********************/
@@ -1147,6 +1148,141 @@ done:
 
 
 /*-------------------------------------------------------------------------
+ * Function:    H5MF__close_delete
+ *
+ * Purpose:     Common code for closing and deleting freespace managers from
+ *              the file.
+ *
+ * Return:	SUCCEED/FAIL
+ *
+ * Programmer:	Vailin Choi
+ *              Jan 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5MF__close_delete(H5F_t *f, hid_t dxpl_id)
+{
+    H5FD_mem_t type;                    /* Memory type for iteration */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_STATIC
+#ifdef H5MF_ALLOC_DEBUG
+HDfprintf(stderr, "%s: Entering\n", FUNC);
+#endif /* H5MF_ALLOC_DEBUG */
+
+    /* check args */
+    HDassert(f);
+    HDassert(f->shared);
+
+    /* Iterate over all the free space types that have managers and get each free list's space */
+    for(type = H5FD_MEM_DEFAULT; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) {
+#ifdef H5MF_ALLOC_DEBUG_MORE
+HDfprintf(stderr, "%s: Check 1.0 - f->shared->fs_man[%u] = %p, f->shared->fs_addr[%u] = %a\n", FUNC, (unsigned)type, f->shared->fs_man[type], (unsigned)type, f->shared->fs_addr[type]);
+#endif /* H5MF_ALLOC_DEBUG_MORE */
+        /* If the free space manager for this type is open, close it */
+        if(f->shared->fs_man[type]) {
+#ifdef H5MF_ALLOC_DEBUG_MORE
+HDfprintf(stderr, "%s: Before closing free space manager\n", FUNC);
+#endif /* H5MF_ALLOC_DEBUG_MORE */
+            if(H5FS_close(f, dxpl_id, f->shared->fs_man[type]) < 0)
+                HGOTO_ERROR(H5E_FSPACE, H5E_CANTRELEASE, FAIL, "can't release free space info")
+            f->shared->fs_man[type] = NULL;
+            f->shared->fs_state[type] = H5F_FS_STATE_CLOSED;
+        } /* end if */
+#ifdef H5MF_ALLOC_DEBUG_MORE
+HDfprintf(stderr, "%s: Check 2.0 - f->shared->fs_man[%u] = %p, f->shared->fs_addr[%u] = %a\n", FUNC, (unsigned)type, f->shared->fs_man[type], (unsigned)type, f->shared->fs_addr[type]);
+#endif /* H5MF_ALLOC_DEBUG_MORE */
+
+        /* If there is free space manager info for this type, delete it */
+        if(H5F_addr_defined(f->shared->fs_addr[type])) {
+            haddr_t tmp_fs_addr;            /* Temporary holder for free space manager address */
+
+            /* Put address into temporary variable and reset it */
+            /* (Avoids loopback in file space freeing routine) */
+            tmp_fs_addr = f->shared->fs_addr[type];
+            f->shared->fs_addr[type] = HADDR_UNDEF;
+
+            /* Shift to "deleting" state, to make certain we don't track any
+             *  file space freed as a result of deleting the free space manager.
+             */
+            f->shared->fs_state[type] = H5F_FS_STATE_DELETING;
+
+#ifdef H5MF_ALLOC_DEBUG_MORE
+HDfprintf(stderr, "%s: Before deleting free space manager\n", FUNC);
+#endif /* H5MF_ALLOC_DEBUG_MORE */
+
+            /* Delete free space manager for this type */
+            if(H5FS_delete(f, dxpl_id, tmp_fs_addr) < 0)
+                HGOTO_ERROR(H5E_FSPACE, H5E_CANTFREE, FAIL, "can't delete free space manager")
+
+            /* Shift [back] to closed state */
+            HDassert(f->shared->fs_state[type] == H5F_FS_STATE_DELETING);
+            f->shared->fs_state[type] = H5F_FS_STATE_CLOSED;
+
+            /* Sanity check that the free space manager for this type wasn't started up again */
+            HDassert(!H5F_addr_defined(f->shared->fs_addr[type]));
+        } /* end if */
+    } /* end for */
+
+done:
+#ifdef H5MF_ALLOC_DEBUG
+HDfprintf(stderr, "%s: Leaving\n", FUNC);
+#endif /* H5MF_ALLOC_DEBUG */
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5MF__close_delete() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5MF_try_close
+ *
+ * Purpose:     This is called by H5Fformat_convert() to close and delete
+ *		free-space managers when downgrading persistent free-space
+ *		to non-persistent.
+ *
+ * Return:	SUCCEED/FAIL
+ *
+ * Programmer:	Vailin Choi
+ *              Jan 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5MF_try_close(H5F_t *f, hid_t dxpl_id)
+{
+    H5P_genplist_t *dxpl = NULL;        /* DXPL for setting ring */
+    H5AC_ring_t orig_ring = H5AC_RING_INV;      /* Original ring value */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+#ifdef H5MF_ALLOC_DEBUG
+HDfprintf(stderr, "%s: Entering\n", FUNC);
+#endif /* H5MF_ALLOC_DEBUG */
+
+    /* check args */
+    HDassert(f);
+
+    /* Set the ring type in the DXPL */
+    if(H5AC_set_ring(dxpl_id, H5AC_RING_FSM, &dxpl, &orig_ring) < 0)
+        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSET, FAIL, "unable to set ring value")
+
+    /* Close and delete freespace managers from the file */
+    if(H5MF__close_delete(f, dxpl_id) < 0)
+        HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSET, FAIL, "unable to close delete free-space managers")
+
+done:
+    /* Reset the ring in the DXPL */
+    if(H5AC_reset_ring(dxpl, orig_ring) < 0)
+        HDONE_ERROR(H5E_RESOURCE, H5E_CANTSET, FAIL, "unable to set property value")
+
+#ifdef H5MF_ALLOC_DEBUG
+HDfprintf(stderr, "%s: Leaving\n", FUNC);
+#endif /* H5MF_ALLOC_DEBUG */
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5MF_try_close() */
+
+
+/*-------------------------------------------------------------------------
  * Function:    H5MF_close
  *
  * Purpose:     Close the free space tracker(s) for a file
@@ -1287,55 +1423,9 @@ HDfprintf(stderr, "%s: Entering\n", FUNC);
 	} /* end for */
     } /* end if */
     else {  /* super_vers can be 0, 1, 2 */
-	/* Iterate over all the free space types that have managers and get each free list's space */
-	for(type = H5FD_MEM_DEFAULT; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) {
-#ifdef H5MF_ALLOC_DEBUG_MORE
-HDfprintf(stderr, "%s: Check 1.0 - f->shared->fs_man[%u] = %p, f->shared->fs_addr[%u] = %a\n", FUNC, (unsigned)type, f->shared->fs_man[type], (unsigned)type, f->shared->fs_addr[type]);
-#endif /* H5MF_ALLOC_DEBUG_MORE */
-	    /* If the free space manager for this type is open, close it */
-	    if(f->shared->fs_man[type]) {
-#ifdef H5MF_ALLOC_DEBUG_MORE
-HDfprintf(stderr, "%s: Before closing free space manager\n", FUNC);
-#endif /* H5MF_ALLOC_DEBUG_MORE */
-		if(H5FS_close(f, dxpl_id, f->shared->fs_man[type]) < 0)
-		    HGOTO_ERROR(H5E_FSPACE, H5E_CANTRELEASE, FAIL, "can't release free space info")
-		f->shared->fs_man[type] = NULL;
-		f->shared->fs_state[type] = H5F_FS_STATE_CLOSED;
-	    } /* end if */
-#ifdef H5MF_ALLOC_DEBUG_MORE
-HDfprintf(stderr, "%s: Check 2.0 - f->shared->fs_man[%u] = %p, f->shared->fs_addr[%u] = %a\n", FUNC, (unsigned)type, f->shared->fs_man[type], (unsigned)type, f->shared->fs_addr[type]);
-#endif /* H5MF_ALLOC_DEBUG_MORE */
-
-	    /* If there is free space manager info for this type, delete it */
-	    if(H5F_addr_defined(f->shared->fs_addr[type])) {
-		haddr_t tmp_fs_addr;            /* Temporary holder for free space manager address */
-
-		/* Put address into temporary variable and reset it */
-		/* (Avoids loopback in file space freeing routine) */
-		tmp_fs_addr = f->shared->fs_addr[type];
-		f->shared->fs_addr[type] = HADDR_UNDEF;
-
-		/* Shift to "deleting" state, to make certain we don't track any
-		 *  file space freed as a result of deleting the free space manager.
-		 */
-		f->shared->fs_state[type] = H5F_FS_STATE_DELETING;
-
-#ifdef H5MF_ALLOC_DEBUG_MORE
-HDfprintf(stderr, "%s: Before deleting free space manager\n", FUNC);
-#endif /* H5MF_ALLOC_DEBUG_MORE */
-
-		/* Delete free space manager for this type */
-		if(H5FS_delete(f, dxpl_id, tmp_fs_addr) < 0)
-		    HGOTO_ERROR(H5E_FSPACE, H5E_CANTFREE, FAIL, "can't delete free space manager")
-
-		/* Shift [back] to closed state */
-		HDassert(f->shared->fs_state[type] == H5F_FS_STATE_DELETING);
-		f->shared->fs_state[type] = H5F_FS_STATE_CLOSED;
-
-		/* Sanity check that the free space manager for this type wasn't started up again */
-		HDassert(!H5F_addr_defined(f->shared->fs_addr[type]));
-	    } /* end if */
-	} /* end for */
+        /* Close and delete freespace managers from the file */
+	if(H5MF__close_delete(f, dxpl_id) < 0)
+            HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space")
     } /* end else */
 
     /* Free the space in aggregators (again) */
diff --git a/src/H5MFprivate.h b/src/H5MFprivate.h
index 766834d..22ed308 100644
--- a/src/H5MFprivate.h
+++ b/src/H5MFprivate.h
@@ -54,6 +54,7 @@ H5_DLL herr_t H5MF_init_merge_flags(H5F_t *f);
 H5_DLL herr_t H5MF_get_freespace(H5F_t *f, hid_t dxpl_id, hsize_t *tot_space,
     hsize_t *meta_size);
 H5_DLL herr_t H5MF_close(H5F_t *f, hid_t dxpl_id);
+H5_DLL herr_t H5MF_try_close(H5F_t *f, hid_t dxpl_id);
 
 /* File space allocation routines */
 H5_DLL haddr_t H5MF_alloc(H5F_t *f, H5FD_mem_t type, hid_t dxpl_id, hsize_t size);
diff --git a/tools/Makefile.am b/tools/Makefile.am
index 38e853d..887c0f0 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -25,6 +25,6 @@ CONFIG=ordered
 
 # All subdirectories
 SUBDIRS=lib h5diff h5ls h5dump misc h5import h5repack h5jam h5copy h5stat \
-	perform
+	h5format_convert perform
 
 include $(top_srcdir)/config/conclude.am
diff --git a/tools/h5format_convert/Makefile.am b/tools/h5format_convert/Makefile.am
new file mode 100644
index 0000000..d3aef7d
--- /dev/null
+++ b/tools/h5format_convert/Makefile.am
@@ -0,0 +1,49 @@
+#
+# Copyright by The HDF Group.
+# Copyright by the Board of Trustees of the University of Illinois.
+# All rights reserved.
+#
+# This file is part of HDF5.  The full HDF5 copyright notice, including
+# terms governing use, modification, and redistribution, is contained in
+# the files COPYING and Copyright.html.  COPYING can be found at the root
+# of the source code distribution tree; Copyright.html can be found at the
+# root level of an installed copy of the electronic HDF5 document set and
+# is linked from the top-level documents page.  It can also be found at
+# http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have
+# access to either file, you may request a copy from help@hdfgroup.org.
+##
+## Makefile.am
+## Run automake to generate a Makefile.in from this file.
+#
+# HDF5 Library Makefile(.in)
+#
+
+include $(top_srcdir)/config/commence.am
+
+# Include src directory
+AM_CPPFLAGS+=-I$(top_srcdir)/src -I$(top_srcdir)/tools/lib
+
+#test script and program
+TEST_PROG=h5fc_gentest
+TEST_SCRIPT=testh5fc.sh
+
+check_PROGRAMS=$(TEST_PROG) h5fc_chk_idx
+check_SCRIPTS=$(TEST_SCRIPT)
+SCRIPT_DEPEND=h5format_convert$(EXEEXT)
+
+# These are our main targets, the tools
+bin_PROGRAMS=h5format_convert
+
+# Add h5format_convert specific linker flags here
+h5format_convert_LDFLAGS = $(LT_STATIC_EXEC) $(AM_LDFLAGS)
+
+# Tell automake to clean h5redeploy script
+CHECK_CLEANFILES+=*.h5
+
+# These were generated by configure.  Remove them only when distclean.
+DISTCLEANFILES=testh5fc.sh
+
+# All programs rely on hdf5 library and h5tools library
+LDADD=$(LIBH5TOOLS) $(LIBHDF5)
+
+include $(top_srcdir)/config/conclude.am
diff --git a/tools/h5format_convert/Makefile.in b/tools/h5format_convert/Makefile.in
new file mode 100644
index 0000000..de362a4
--- /dev/null
+++ b/tools/h5format_convert/Makefile.in
@@ -0,0 +1,1502 @@
+# Makefile.in generated by automake 1.15 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2014 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Copyright by The HDF Group.
+# Copyright by the Board of Trustees of the University of Illinois.
+# All rights reserved.
+#
+# This file is part of HDF5.  The full HDF5 copyright notice, including
+# terms governing use, modification, and redistribution, is contained in
+# the files COPYING and Copyright.html.  COPYING can be found at the root
+# of the source code distribution tree; Copyright.html can be found at the
+# root level of an installed copy of the electronic HDF5 document set and
+# is linked from the top-level documents page.  It can also be found at
+# http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have
+# access to either file, you may request a copy from help@hdfgroup.org.
+#
+# HDF5 Library Makefile(.in)
+#
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
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+# Shell commands used in Makefiles
+RM = rm -f
+CP = cp
+
+# Some machines need a command to run executables; this is that command
+# so that our tests will run.
+# We use RUNEXEC instead of RUNSERIAL directly because it may be that
+# some tests need to be run with a different command.  Older versions
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+# Note that in svn revision 19400 the '/' after DESTDIR in H5* variables below  
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+
+# Scripts used to build examples
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+# The trace script; this is used on source files from the C library to
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+# Add h5format_convert specific linker flags here
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+	test -n "$$list" || exit 0; \
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+clean-binPROGRAMS:
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+	  redo_results=`for i in $$redo_bases; do echo $$i.trs; done`; \
+	  if $(am__make_dryrun); then :; else \
+	    rm -f $$redo_logs && rm -f $$redo_results || exit 1; \
+	  fi; \
+	fi; \
+	if test -n "$$am__remaking_logs"; then \
+	  echo "fatal: making $(TEST_SUITE_LOG): possible infinite" \
+	       "recursion detected" >&2; \
+	elif test -n "$$redo_logs"; then \
+	  am__remaking_logs=yes $(MAKE) $(AM_MAKEFLAGS) $$redo_logs; \
+	fi; \
+	if $(am__make_dryrun); then :; else \
+	  st=0;  \
+	  errmsg="fatal: making $(TEST_SUITE_LOG): failed to create"; \
+	  for i in $$redo_bases; do \
+	    test -f $$i.trs && test -r $$i.trs \
+	      || { echo "$$errmsg $$i.trs" >&2; st=1; }; \
+	    test -f $$i.log && test -r $$i.log \
+	      || { echo "$$errmsg $$i.log" >&2; st=1; }; \
+	  done; \
+	  test $$st -eq 0 || exit 1; \
+	fi
+	@$(am__sh_e_setup); $(am__tty_colors); $(am__set_TESTS_bases); \
+	ws='[ 	]'; \
+	results=`for b in $$bases; do echo $$b.trs; done`; \
+	test -n "$$results" || results=/dev/null; \
+	all=`  grep "^$$ws*:test-result:"           $$results | wc -l`; \
+	pass=` grep "^$$ws*:test-result:$$ws*PASS"  $$results | wc -l`; \
+	fail=` grep "^$$ws*:test-result:$$ws*FAIL"  $$results | wc -l`; \
+	skip=` grep "^$$ws*:test-result:$$ws*SKIP"  $$results | wc -l`; \
+	xfail=`grep "^$$ws*:test-result:$$ws*XFAIL" $$results | wc -l`; \
+	xpass=`grep "^$$ws*:test-result:$$ws*XPASS" $$results | wc -l`; \
+	error=`grep "^$$ws*:test-result:$$ws*ERROR" $$results | wc -l`; \
+	if test `expr $$fail + $$xpass + $$error` -eq 0; then \
+	  success=true; \
+	else \
+	  success=false; \
+	fi; \
+	br='==================='; br=$$br$$br$$br$$br; \
+	result_count () \
+	{ \
+	    if test x"$$1" = x"--maybe-color"; then \
+	      maybe_colorize=yes; \
+	    elif test x"$$1" = x"--no-color"; then \
+	      maybe_colorize=no; \
+	    else \
+	      echo "$@: invalid 'result_count' usage" >&2; exit 4; \
+	    fi; \
+	    shift; \
+	    desc=$$1 count=$$2; \
+	    if test $$maybe_colorize = yes && test $$count -gt 0; then \
+	      color_start=$$3 color_end=$$std; \
+	    else \
+	      color_start= color_end=; \
+	    fi; \
+	    echo "$${color_start}# $$desc $$count$${color_end}"; \
+	}; \
+	create_testsuite_report () \
+	{ \
+	  result_count $$1 "TOTAL:" $$all   "$$brg"; \
+	  result_count $$1 "PASS: " $$pass  "$$grn"; \
+	  result_count $$1 "SKIP: " $$skip  "$$blu"; \
+	  result_count $$1 "XFAIL:" $$xfail "$$lgn"; \
+	  result_count $$1 "FAIL: " $$fail  "$$red"; \
+	  result_count $$1 "XPASS:" $$xpass "$$red"; \
+	  result_count $$1 "ERROR:" $$error "$$mgn"; \
+	}; \
+	{								\
+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
+	    $(am__rst_title);						\
+	  create_testsuite_report --no-color;				\
+	  echo;								\
+	  echo ".. contents:: :depth: 2";				\
+	  echo;								\
+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
+	if $$success; then						\
+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary for $(PACKAGE_STRING)$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+recheck: all $(check_PROGRAMS) $(check_SCRIPTS)
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+h5fc_gentest.log: h5fc_gentest$(EXEEXT)
+	@p='h5fc_gentest$(EXEEXT)'; \
+	b='h5fc_gentest'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+.sh.log:
+	@p='$<'; \
+	$(am__set_b); \
+	$(am__check_pre) $(SH_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_SH_LOG_DRIVER_FLAGS) $(SH_LOG_DRIVER_FLAGS) -- $(SH_LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.sh$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(SH_LOG_DRIVER) --test-name "$$f" \
+@am__EXEEXT_TRUE@	--log-file $$b.log --trs-file $$b.trs \
+@am__EXEEXT_TRUE@	$(am__common_driver_flags) $(AM_SH_LOG_DRIVER_FLAGS) $(SH_LOG_DRIVER_FLAGS) -- $(SH_LOG_COMPILE) \
+@am__EXEEXT_TRUE@	"$$tst" $(AM_TESTS_FD_REDIRECT)
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS) $(check_SCRIPTS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile $(PROGRAMS) all-local
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-test -z "$(DISTCLEANFILES)" || rm -f $(DISTCLEANFILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-checkPROGRAMS clean-generic \
+	clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool mostlyclean-local
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am all-local check check-TESTS \
+	check-am clean clean-binPROGRAMS clean-checkPROGRAMS \
+	clean-generic clean-libtool cscopelist-am ctags ctags-am \
+	distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool mostlyclean-local pdf \
+	pdf-am ps ps-am recheck tags tags-am uninstall uninstall-am \
+	uninstall-binPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+# List all build rules defined by HDF5 Makefiles as "PHONY" targets here.
+# This tells the Makefiles that these targets are not files to be built but
+# commands that should be executed even if a file with the same name already
+# exists.
+.PHONY: build-check-clean build-check-p build-check-s build-lib build-progs \
+        build-tests check-clean check-install check-p check-s check-vfd \
+        install-doc lib progs tests uninstall-doc _exec_check-s _test help
+
+help:
+	@$(top_srcdir)/bin/makehelp
+
+# lib/progs/tests targets recurse into subdirectories. build-* targets
+# build files in this directory.
+build-lib: $(LIB)
+build-progs: $(LIB) $(PROGS)
+build-tests: $(LIB) $(PROGS) $(chk_TESTS)
+
+# General rule for recursive building targets.
+# BUILT_SOURCES contain targets that need to be built before anything else
+# in the directory (e.g., for Fortran type detection)
+lib progs tests check-s check-p :: $(BUILT_SOURCES)
+	@$(MAKE) $(AM_MAKEFLAGS) build-$@ || exit 1;
+	@for d in X $(SUBDIRS); do                                             \
+	    if test $$d != X && test $$d != .; then                           \
+	        (set -x; cd $$d && $(MAKE) $(AM_MAKEFLAGS) $@) || exit 1;     \
+	    fi;                                                               \
+	done
+
+# General rule for recursive cleaning targets.  Like the rule above,
+# but doesn't require building BUILT_SOURCES.
+check-clean ::
+	@$(MAKE) $(AM_MAKEFLAGS) build-$@ || exit 1;
+	@for d in X $(SUBDIRS); do                                             \
+	    if test $$d != X && test $$d != .; then                           \
+	        (set -x; cd $$d && $(MAKE) $(AM_MAKEFLAGS) $@) || exit 1;     \
+	    fi;                                                               \
+	done
+
+# Tell Automake to build tests when the user types `make all' (this is
+# not its default behavior).  Also build EXTRA_LIB and EXTRA_PROG since
+# Automake won't build them automatically, either.
+all-local: $(EXTRA_LIB) $(EXTRA_PROG) $(chk_TESTS)
+
+# make install-doc doesn't do anything outside of doc directory, but
+# Makefiles should recognize it.
+# UPDATE: docs no longer reside in this build tree, so this target
+# is depreciated.
+install-doc uninstall-doc:
+	@echo "Nothing to be done."
+
+# clean up files generated by tests so they can be re-run.
+build-check-clean:
+	$(RM) -rf $(CHECK_CLEANFILES)
+
+# run check-clean whenever mostlyclean is run
+mostlyclean-local: build-check-clean
+
+# check-install is just a synonym for installcheck
+check-install: installcheck
+
+# Run each test in order, passing $(TEST_FLAGS) to the program.
+# Since tests are done in a shell loop, "make -i" does apply inside it.
+# Set HDF5_Make_Ignore to a non-blank string to ignore errors inside the loop.
+# The timestamps give a rough idea how much time the tests use.
+#
+# Note that targets in chk_TESTS (defined above) will be built when the user
+# types 'make tests' or 'make check', but only programs in TEST_PROG,
+# TEST_PROG_PARA, or TEST_SCRIPT will actually be executed.
+check-TESTS: test
+
+test _test:
+	@$(MAKE) build-check-s
+	@$(MAKE) build-check-p
+
+# Actual execution of check-s.
+build-check-s: $(LIB) $(PROGS) $(chk_TESTS)
+	@if test -n "$(TEST_PROG)$(TEST_SCRIPT)"; then      \
+	   echo "===Serial tests in `echo ${PWD} | sed -e s:.*/::` begin `date`==="; \
+	fi
+	@$(MAKE) $(AM_MAKEFLAGS) _exec_check-s
+	@if test -n "$(TEST_PROG)$(TEST_SCRIPT)"; then      \
+	    echo "===Serial tests in `echo ${PWD} | sed -e s:.*/::` ended `date`===";\
+	fi
+
+_exec_check-s: $(TEST_PROG_CHKEXE) $(TEST_SCRIPT_CHKSH)
+
+# The dummy.chkexe here prevents the target from being
+# empty if there are no tests in the current directory.
+# $${log} is the log file.
+# $${tname} is the name of test.
+$(TEST_PROG_CHKEXE) $(TEST_PROG_PARA_CHKEXE) dummy.chkexe_:
+	@if test "X$@" != "X.chkexe_" && test "X$@" != "Xdummy.chkexe_"; then \
+	   tname=$(@:.chkexe_=)$(EXEEXT);\
+	   log=$(@:.chkexe_=.chklog); \
+	   echo "============================"; \
+	   if $(top_srcdir)/bin/newer $(@:.chkexe_=.chkexe) $${tname}; then \
+	      echo "No need to test $${tname} again."; \
+	   else \
+	      echo "============================" > $${log}; \
+	      if test "X$(FORTRAN_API)" = "Xyes"; then \
+	         echo "Fortran API: Testing $(HDF5_DRIVER) $${tname} $(TEST_FLAGS)"; \
+	         echo "Fortran API: $(HDF5_DRIVER) $${tname} $(TEST_FLAGS) Test Log" >> $${log}; \
+	      elif test "X$(CXX_API)" = "Xyes"; then \
+	         echo "C++ API: Testing $(HDF5_DRIVER) $${tname} $(TEST_FLAGS)"; \
+	         echo "C++ API: $(HDF5_DRIVER) $${tname} $(TEST_FLAGS) Test Log" >> $${log};\
+	      else \
+	         echo "Testing $(HDF5_DRIVER) $${tname} $(TEST_FLAGS)"; \
+	         echo "$(HDF5_DRIVER) $${tname} $(TEST_FLAGS) Test Log" >> $${log}; \
+	      fi; \
+	      echo "============================" >> $${log}; \
+	      srcdir="$(srcdir)" \
+	         $(TIME) $(RUNEXEC) ./$${tname} $(TEST_FLAGS) >> $${log} 2>&1 \
+	         && touch $(@:.chkexe_=.chkexe) || \
+	         (test $$HDF5_Make_Ignore && echo "*** Error ignored") || \
+	         (cat $${log} && false) || exit 1; \
+	      echo "" >> $${log}; \
+	      echo "Finished testing $${tname} $(TEST_FLAGS)" >> $${log}; \
+	      echo "============================" >> $${log}; \
+	      echo "Finished testing $${tname} $(TEST_FLAGS)"; \
+	      cat $${log}; \
+	   fi; \
+	fi
+
+# The dummysh.chkexe here prevents the target from being
+# empty if there are no tests in the current directory.
+# $${log} is the log file.
+# $${tname} is the name of test.
+$(TEST_SCRIPT_CHKSH) $(TEST_SCRIPT_PARA_CHKSH) dummysh.chkexe_:
+	@if test "X$@" != "X.chkexe_" && test "X$@" != "Xdummysh.chkexe_"; then \
+	   cmd=$(@:.chkexe_=);\
+	   tname=`basename $$cmd`;\
+	   chkname=`basename $(@:.chkexe_=.chkexe)`;\
+	   log=`basename $(@:.chkexe_=.chklog)`; \
+	   echo "============================"; \
+	   if $(top_srcdir)/bin/newer $${chkname} $$cmd $(SCRIPT_DEPEND); then \
+	      echo "No need to test $${tname} again."; \
+	   else \
+	      echo "============================" > $${log}; \
+	      if test "X$(FORTRAN_API)" = "Xyes"; then \
+	         echo "Fortran API: Testing $${tname} $(TEST_FLAGS)"; \
+	         echo "Fortran API: $${tname} $(TEST_FLAGS) Test Log" >> $${log}; \
+	      elif test "X$(CXX_API)" = "Xyes"; then \
+	         echo "C++ API: Testing $${tname} $(TEST_FLAGS)"; \
+	         echo "C++ API: $${tname} $(TEST_FLAGS) Test Log" >> $${log}; \
+	      else \
+	         echo "Testing $${tname} $(TEST_FLAGS)"; \
+	         echo "$${tname} $(TEST_FLAGS) Test Log" >> $${log}; \
+	      fi; \
+	      echo "============================" >> $${log}; \
+	      RUNSERIAL="$(RUNSERIAL)" RUNPARALLEL="$(RUNPARALLEL)"           \
+	      srcdir="$(srcdir)" \
+	         $(TIME) $(SHELL) $$cmd $(TEST_FLAGS) >> $${log} 2>&1 \
+	         && touch $${chkname} || \
+	         (test $$HDF5_Make_Ignore && echo "*** Error ignored") || \
+	         (cat $${log} && false) || exit 1; \
+	      echo "" >> $${log}; \
+	      echo "Finished testing $${tname} $(TEST_FLAGS)" >> $${log}; \
+	      echo "============================" >> $${log}; \
+	      echo "Finished testing $${tname} $(TEST_FLAGS)"; \
+	      cat $${log}; \
+	   fi; \
+	   echo "============================"; \
+	fi
+
+# Actual execution of check-p.
+build-check-p: $(LIB) $(PROGS) $(chk_TESTS)
+	@if test -n "$(TEST_PROG_PARA)$(TEST_SCRIPT_PARA)"; then      \
+	   echo "===Parallel tests in `echo ${PWD} | sed -e s:.*/::` begin `date`==="; \
+	fi
+	@if test -n "$(TEST_PROG_PARA)"; then                                \
+	    echo "**** Hint ****";                                            \
+	    echo "Parallel test files reside in the current directory"        \
+	         "by default.";                                               \
+	    echo "Set HDF5_PARAPREFIX to use another directory. E.g.,";       \
+	    echo "    HDF5_PARAPREFIX=/PFS/user/me";                          \
+	    echo "    export HDF5_PARAPREFIX";                                \
+	    echo "    make check";                                            \
+	    echo "**** end of Hint ****";                                     \
+	fi
+	@for test in $(TEST_PROG_PARA) dummy; do                             \
+	   if test $$test != dummy; then                                      \
+	      $(MAKE) $(AM_MAKEFLAGS) $$test.chkexe_ \
+	      RUNEXEC="$(RUNPARALLEL)" || exit 1; \
+	   fi;                                                                \
+	done
+	@for test in $(TEST_SCRIPT_PARA) dummy; do                           \
+	  if test $$test != dummy; then                                      \
+	    $(MAKE) $(AM_MAKEFLAGS) $$test.chkexe_ || exit 1; \
+	  fi;                                                                 \
+	done
+	@if test -n "$(TEST_PROG_PARA)$(TEST_SCRIPT_PARA)"; then      \
+	    echo "===Parallel tests in `echo ${PWD} | sed -e s:.*/::` ended `date`===";\
+	fi
+
+# Run test with different Virtual File Driver
+check-vfd: $(LIB) $(PROGS) $(chk_TESTS)
+	@for vfd in $(VFD_LIST) dummy; do                                     \
+	    if test $$vfd != dummy; then                                      \
+	        echo "============================";                          \
+	        echo "Testing Virtual File Driver $$vfd";                     \
+	        echo "============================";                          \
+	        $(MAKE) $(AM_MAKEFLAGS) check-clean || exit 1;                \
+	        HDF5_DRIVER=$$vfd $(MAKE) $(AM_MAKEFLAGS) check || exit 1;    \
+	    fi;                                                               \
+	done
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tools/h5format_convert/h5fc_chk_idx.c b/tools/h5format_convert/h5fc_chk_idx.c
new file mode 100644
index 0000000..3a87594
--- /dev/null
+++ b/tools/h5format_convert/h5fc_chk_idx.c
@@ -0,0 +1,103 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * A program to verify that the chunk indexing type of a dataset in a file
+ * is version 1 B-tree.  
+ * This is to support the testing of the tool "h5format_convert".
+ */
+
+#include "hdf5.h"
+#include "H5private.h"
+#include "h5tools.h"
+
+static void usage(void);
+
+static void
+usage(void)
+{
+    HDfprintf(stdout, "Usage: h5fc_chk_idx file_name dataset_pathname\n");
+} /* usage() */
+
+/*-------------------------------------------------------------------------
+ * Function:	main
+ *
+ * Purpose:	To check that the chunk indexing type for the dataset in 
+ *		the file is version 1 B-tree.
+ *
+ * Return:	0 -- the indexing type is version 1 B-tree
+ *		1 -- otherwise
+ *
+ *-------------------------------------------------------------------------
+ */
+int
+main(int argc, char *argv[])
+{
+    char *fname = NULL;
+    char *dname = NULL;
+    hid_t fid = -1;
+    hid_t did = -1;
+    H5D_chunk_index_t idx_type;
+
+    /* h5fc_chk_idx fname dname */
+    if(argc != 3) {
+	usage();
+	HDexit(EXIT_FAILURE);
+    } /* end if */
+
+    /* Duplicate the file name  & dataset name */
+    fname = HDstrdup(argv[1]);
+    dname = HDstrdup(argv[2]);
+
+    /* Try opening the file */
+    if((fid = h5tools_fopen(fname, H5F_ACC_RDONLY, H5P_DEFAULT, NULL, NULL, (size_t)0)) < 0) {
+	HDfprintf(stderr, "h5fc_chk_idx: unable to open the file\n");
+	HDexit(EXIT_FAILURE);
+    } /* end if */
+
+    /* Open the dataset */
+    if((did = H5Dopen2(fid, dname, H5P_DEFAULT)) < 0) {
+	HDfprintf(stderr, "h5fc_chk_idx: unable to open the dataset\n");
+	HDexit(EXIT_FAILURE);
+    } /* end if */
+
+    /* Get the dataset's chunk indexing type */
+    if(H5Dget_chunk_index_type(did, &idx_type) < 0) {
+	HDfprintf(stderr, "h5fc_chk_idx: unable to get chunk index type for the dataset\n");
+	HDexit(EXIT_FAILURE);
+    } /* end if */
+
+    /* Close the dataset */
+    if(H5Dclose(did) < 0) {
+	HDfprintf(stderr, "h5fc_chk_idx: unable to close the dataset\n");
+	HDexit(EXIT_FAILURE);
+    } /* end if */
+
+    /* Close the file */
+    if(H5Fclose(fid) < 0) {
+	HDfprintf(stderr, "h5fc_chk_idx_type: cannot close the file\n");
+	HDexit(EXIT_FAILURE);
+    } /* end if */
+
+    /* Return success when the chunk indexing type is version 1 B-tree */
+    if(idx_type == H5D_CHUNK_IDX_BTREE) 
+	HDexit(EXIT_SUCCESS);
+    else {
+	HDfprintf(stderr, "Error: chunk indexing type is %d\n", idx_type);
+	HDexit(EXIT_FAILURE);
+    } /* end if */
+
+} /* main() */
+
diff --git a/tools/h5format_convert/h5fc_gentest.c b/tools/h5format_convert/h5fc_gentest.c
new file mode 100644
index 0000000..dae57fb
--- /dev/null
+++ b/tools/h5format_convert/h5fc_gentest.c
@@ -0,0 +1,661 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Generate the binary hdf5 files for the h5format_convert tests.
+ * Usage: just execute the program without any arguments will
+ * generate all the binary hdf5 files 
+ *
+ * If you regenerate the test files (e.g., changing some code,
+ * trying it on a new platform, ...), you need to verify the correctness
+ * of the expected output and update the corresponding *.ddl files.
+ */
+
+#include "hdf5.h"
+#include "H5private.h"
+
+#define NON_V3_FILE		"h5fc_non_v3.h5"
+#define EDGE_V3_FILE		"h5fc_edge_v3.h5"
+
+const char *FILENAME[] = {
+    "h5fc_ext1_i.h5",	/* 0 */
+    "h5fc_ext1_s.h5",	/* 1 */
+    "h5fc_ext1_f.h5",	/* 2 */
+    "h5fc_ext2_is.h5", 	/* 3 */
+    "h5fc_ext2_if.h5",	/* 4 */
+    "h5fc_ext2_sf.h5", 	/* 5 */
+    "h5fc_ext3_isf.h5",	/* 6 */ 
+    "h5fc_ext_none.h5",	/* 7 */ 
+    NULL
+};
+
+#define GROUP			"GROUP"
+
+#define DSET_COMPACT		"DSET_COMPACT"
+#define DSET_CONTIGUOUS		"DSET_CONTIGUOUS"
+
+#define DSET_EA			"DSET_EA"
+#define DSET_NDATA_EA		"DSET_NDATA_EA"
+#define DSET_BT2		"DSET_BT2"
+#define DSET_NDATA_BT2		"DSET_NDATA_BT2"
+#define DSET_FA			"DSET_FA"
+#define DSET_NDATA_FA		"DSET_NDATA_FA"
+#define DSET_NONE		"DSET_NONE"
+#define DSET_NDATA_NONE		"DSET_NDATA_NONE"
+
+#define DSET_EDGE		"DSET_EDGE"
+
+#define ISTORE_IK  64
+
+/*
+ * Function: gen_non() 
+ *
+ * Create empty file with latest-format--this will result in v3 superbock
+ * Close and re-open file with non-latest-format--v3 superblock will result in latest version support:
+ *	1) 1 chunked dataset with extensible array chunk indexing type (without data)
+ *	2) 1 chunked dataset with version 2 B-tree chunk indexing type (with data)
+ * Re-open the file with write+non-latest-format and create:
+ *	3) 1 chunked dataset with version 2 B-tree chunk indexing type (without data)
+ * 	4) 1 chunked dataset with extensible array indexing type (with data)
+ *	5) 1 compact and 1 contiguous datasets
+ */
+static void
+gen_non(const char *fname)
+{
+    hid_t	fid = -1;		/* file id */
+    hid_t	fcpl = -1;		/* file creation property list */
+    hid_t	fapl = -1;		/* file access property list */
+    hid_t	gid = -1;		/* group id */
+    hid_t   	sid = -1;       	/* space id */
+    hid_t	dcpl = -1;		/* dataset creation property id */
+    hid_t	did1 = -1, did2 = -1;	/* dataset id */
+    hsize_t 	dims1[1] = {10};     	/* dataset dimension */
+    hsize_t 	dims2[2] = {4, 6};     	/* dataset dimension */
+    hsize_t	max_dims[2];		/* maximum dataset dimension */
+    hsize_t 	c_dims[2] = {2, 3};    	/* chunk dimension */
+    int		i;		    	/* local index variable */
+    int     	buf[24];            	/* data buffer */
+
+    if((fcpl = H5Pcreate(H5P_FILE_CREATE)) < 0)
+        goto error;
+    if(H5Pset_shared_mesg_nindexes(fcpl, 4) < 0)
+        goto error;
+    if(H5Pset_istore_k(fcpl, 64) < 0)
+        goto error;
+
+    if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
+	goto error;
+    if(H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
+	goto error;
+
+    /* Create an empty file with latest-format */
+    if((fid = H5Fcreate(fname, H5F_ACC_TRUNC, fcpl, fapl)) < 0)
+	goto error;
+
+    /* Create a group */
+    if((gid = H5Gcreate2(fid, GROUP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Create data */
+    for(i = 0; i < 24; i++)
+	buf[i] = i;
+
+    /* Set chunk */
+    if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
+	goto error;
+    if(H5Pset_chunk(dcpl, 2, c_dims) < 0)
+	goto error;
+
+    /* 
+     * Create a chunked dataset with extensible array chunk indexing type (without data)
+     */
+
+    /* Create dataspace */
+    max_dims[0] = 10;
+    max_dims[1] = H5S_UNLIMITED;
+    if((sid = H5Screate_simple(2, dims2, max_dims)) < 0)
+	goto error;
+
+    /* Create the dataset */
+    if((did1  = H5Dcreate2(fid, DSET_NDATA_EA, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Dclose(did1) < 0)
+	goto error;
+
+    /* 
+     * Create a chunked dataset with version 2 B-tree chunk indexing type (with data)
+     */
+
+    /* Create dataspace */
+    max_dims[0] = 10;
+    max_dims[0] = H5S_UNLIMITED;
+    max_dims[1] = H5S_UNLIMITED;
+    if((sid = H5Screate_simple(2, dims2, max_dims)) < 0)
+	goto error;
+
+    /* Create the dataset */
+    if((did1  = H5Dcreate2(gid, DSET_BT2, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Write to the dataset */
+    if(H5Dwrite(did1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Dclose(did1) < 0)
+	goto error;
+    if(H5Pclose(dcpl) < 0)
+	goto error;
+    if(H5Gclose(gid) < 0)
+	goto error;
+
+
+    /* Open the group */
+    if((gid = H5Gopen2(fid, GROUP, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /*
+     * Create a dataset with version 2 B-btree chunk indexing type (without data)
+     */
+
+    /* Set chunk */
+    if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
+	goto error;
+    if(H5Pset_chunk(dcpl, 2, c_dims) < 0)
+	goto error;
+
+    /* Create dataspace */
+    max_dims[0] = H5S_UNLIMITED;
+    max_dims[1] = H5S_UNLIMITED;
+    if((sid = H5Screate_simple(2, dims2, max_dims)) < 0)
+	goto error;
+
+    /* Create the dataset */
+    if((did1 = H5Dcreate2(fid, DSET_NDATA_BT2, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Close the dataspace */
+    if(H5Sclose(sid) < 0)
+	goto error;
+
+    /*
+     * Create a dataset with extensible array chunk indexing type (with data) in the group
+     */
+
+    /* Create dataspace */
+    max_dims[0] = 10;
+    max_dims[1] = H5S_UNLIMITED;
+    if((sid = H5Screate_simple(2, dims2, max_dims)) < 0)
+	goto error;
+
+    /* Create the dataset */
+    if((did2 = H5Dcreate2(gid, DSET_EA, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Write to the dataset */
+    if(H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Pclose(dcpl) < 0)
+	goto error;
+    if(H5Dclose(did1) < 0)
+	goto error;
+    if(H5Dclose(did2) < 0)
+	goto error;
+
+    /* 
+     * Create a compact dataset in the group
+     */
+
+    /* Create dataspace */
+    if((sid = H5Screate_simple(1, dims1, NULL)) < 0)
+	goto error;
+
+    if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
+	goto error;
+    if(H5Pset_layout(dcpl, H5D_COMPACT) < 0)
+	goto error;
+
+    /* Create the dataset */
+    if((did1  = H5Dcreate2(gid, DSET_COMPACT, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Dclose(did1) < 0)
+	goto error;
+    if(H5Pclose(dcpl) < 0)
+	goto error;
+    if(H5Sclose(sid) < 0)
+	goto error;
+
+    /* 
+     * Create a contiguous dataset with (2d with data) in the file
+     */
+    if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
+	goto error;
+    if(H5Pset_layout(dcpl, H5D_CONTIGUOUS) < 0)
+	goto error;
+
+    if((sid = H5Screate_simple(2, dims2, NULL)) < 0)
+	goto error;
+
+    /* Create the dataset */
+    if((did2  = H5Dcreate2(fid, DSET_CONTIGUOUS, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+	goto error;
+    /* Write to the dataset */
+    if(H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Dclose(did2) < 0)
+	goto error;
+    if(H5Pclose(dcpl) < 0)
+	goto error;
+    if(H5Sclose(sid) < 0)
+	goto error;
+
+    if(H5Gclose(gid) < 0)
+	goto error;
+    if(H5Pclose(fcpl) < 0)
+	goto error;
+    if(H5Pclose(fapl) < 0)
+	goto error;
+    if(H5Fclose(fid) < 0)
+	goto error;
+
+error:
+    H5E_BEGIN_TRY {
+        H5Pclose(dcpl);
+        H5Sclose(sid);
+        H5Dclose(did1);
+        H5Dclose(did2);
+        H5Gclose(gid);
+        H5Fclose(fcpl);
+        H5Fclose(fapl);
+        H5Fclose(fid);
+    } H5E_END_TRY;
+
+} /* gen_non() */
+
+/*
+ * Function: gen_edge() 
+ *
+ * Create a file with write+latest-format--this will result in v3 superblock+latest version support:
+ *	A dataset: chunked, filtered, H5D_CHUNK_DONT_FILTER_PARTIAL_CHUNKS enabled
+ *	(i.e. the dataset does not filter partial edge chunks)
+ */
+static void
+gen_edge(const char *fname)
+{
+    hid_t	fid = -1;	    	/* file id */
+    hid_t	fapl = -1;	       	/* file access property list */
+    hid_t   	sid = -1;       	/* dataspace id */
+    hid_t	dcpl = -1;	    	/* dataset creation property id */
+    hid_t	did = -1;		/* dataset id */
+    hsize_t 	dims2[2] = {12, 6};	/* Dataset dimensions */
+    hsize_t 	c_dims[2] = {5, 5};	/* Chunk dimensions */
+    float 	buf[12][6];            	/* Buffer for writing data */
+    int		i, j;		    	/* local index variable */
+
+    /* Create a new format file */
+    if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
+	goto error;
+    if(H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
+	goto error;
+    if((fid = H5Fcreate(fname, H5F_ACC_TRUNC, H5P_DEFAULT, fapl)) < 0)
+	goto error;
+
+    /* Set chunk, filter, no-filter-edge-chunk */
+    if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
+	goto error;
+    if(H5Pset_chunk(dcpl, 2, c_dims) < 0)
+	goto error;
+    if(H5Pset_deflate(dcpl, 9) < 0)
+        goto error;
+    if(H5Pset_chunk_opts(dcpl, H5D_CHUNK_DONT_FILTER_PARTIAL_CHUNKS) < 0)
+        goto error;
+
+    /* Create dataspace */
+    if((sid = H5Screate_simple(2, dims2, NULL)) < 0)
+        goto error;
+
+    /* Create the dataset */
+    if((did = H5Dcreate2(fid, DSET_EDGE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+        goto error;
+
+    /* Create data */
+    for (i = 0; i< 12; i++)
+        for (j = 0; j< 6; j++)
+            buf[i][j] = 100.0F;
+
+    /* Write to the dataset */
+    if(H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Pclose(dcpl) < 0)
+	goto error;
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Dclose(did) < 0)
+	goto error;
+    if(H5Pclose(fapl) < 0)
+	goto error;
+    if(H5Fclose(fid) < 0)
+	goto error;
+
+error:
+    H5E_BEGIN_TRY {
+        H5Pclose(dcpl);
+        H5Sclose(sid);
+        H5Dclose(did);
+        H5Fclose(fid);
+        H5Pclose(fapl);
+    } H5E_END_TRY;
+
+} /* gen_edge() */
+
+
+/*
+ * Function: gen_ext() 
+ *
+ * Create a file with/without latest format with:
+ *	1) 1 contiguous dataset (without data)
+ *	2) 2 chunked datasets with extensible array chunk indexing type (with/without data)
+ *	3) 2 chunked datasets with version 2 B-tree chunk indexing type (with/without data)
+ *	4) 2 chunked datasets with fixed array chunk indexing type (with/without data)
+ *	5) 2 chunked datasets with implicit array chunk indexing type (with/without data)
+ * It will create the file with/without messages in the superblock extension depending
+ * on the parameter "what".
+ */
+static void
+gen_ext(const char *fname, unsigned latest, unsigned what)
+{
+    hid_t	fid = -1;	 	/* file id */
+    hid_t	fapl = -1;	       	/* file access property list */
+    hid_t	fcpl = -1;	       	/* file creation property list */
+    hid_t	gid = -1;	       	/* group id */
+    hid_t   	sid = -1;       	/* space id */
+    hid_t	dcpl = -1;	    	/* dataset creation property id */
+    hid_t	did1 = -1, did2 = -1;	/* dataset id */
+    hsize_t 	dims1[1] = {10};     	/* dataset dimension */
+    hsize_t 	dims2[2] = {4, 6};     	/* dataset dimension */
+    hsize_t	max_dims[2];		/* maximum dataset dimension */
+    hsize_t 	c_dims[2] = {2, 3};    	/* chunk dimension */
+    int		i;		    	/* local index variable */
+    int     	buf[24];            	/* data buffer */
+
+    if((fapl = H5Pcreate(H5P_FILE_ACCESS)) < 0)
+	goto error;
+
+    if(latest)
+	/* Create a new format file */
+	if(H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
+	    goto error;
+
+    /* Create a file creation property list */
+    fcpl = H5Pcreate(H5P_FILE_CREATE);
+
+    /* Generate messages that might be placed in superblock extension */
+    switch(what) {
+	case 0:
+	    H5Pset_istore_k(fcpl, ISTORE_IK);
+	    break;
+	case 1:
+	    H5Pset_shared_mesg_nindexes(fcpl, 4);
+	    break;
+	case 2:
+	    H5Pset_file_space(fcpl, H5F_FILE_SPACE_ALL_PERSIST, (hsize_t)0);
+	    break;
+	case 3:
+	    H5Pset_istore_k(fcpl, ISTORE_IK);
+	    H5Pset_shared_mesg_nindexes(fcpl, 4);
+	    break;
+	case 4:
+	    H5Pset_istore_k(fcpl, ISTORE_IK);
+	    H5Pset_file_space(fcpl, H5F_FILE_SPACE_DEFAULT, (hsize_t)2);
+	    break;
+	case 5:
+	    H5Pset_shared_mesg_nindexes(fcpl, 4);
+	    H5Pset_file_space(fcpl, H5F_FILE_SPACE_VFD, (hsize_t)0);
+	    break;
+	case 6:
+	    H5Pset_istore_k(fcpl, ISTORE_IK);
+	    H5Pset_shared_mesg_nindexes(fcpl, 4);
+	    H5Pset_file_space(fcpl, H5F_FILE_SPACE_AGGR_VFD, (hsize_t)0);
+	    break;
+	default:
+	    break;
+    }
+
+    /* Create the file */
+    if((fid = H5Fcreate(fname, H5F_ACC_TRUNC, fcpl, fapl)) < 0)
+	goto error;
+
+    /* Create a group */
+    if((gid = H5Gcreate2(fid, GROUP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Set chunk */
+    if((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
+	goto error;
+    if(H5Pset_chunk(dcpl, 2, c_dims) < 0)
+	goto error;
+
+
+    /* 
+     * Create a contiguous dataset 
+     */
+
+    /* Create dataspace */
+    if((sid = H5Screate_simple(1, dims1, NULL)) < 0)
+	goto error;
+
+    /* Create the dataset */
+    if((did1  = H5Dcreate2(fid, DSET_CONTIGUOUS, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Dclose(did1) < 0)
+	goto error;
+
+    /* 
+     * Create 2 chunked datasets with extensible array chunk indexing type 
+     * (one with data; one without data)
+     */
+
+    /* Create dataspace */
+    max_dims[0] = 10;
+    max_dims[1] = H5S_UNLIMITED;
+    if((sid = H5Screate_simple(2, dims2, max_dims)) < 0)
+	goto error;
+
+    /* Create the 2 datasets */
+    if((did1  = H5Dcreate2(gid, DSET_NDATA_EA, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    if((did2  = H5Dcreate2(fid, DSET_EA, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Create data */
+    for(i = 0; i < 24; i++)
+	buf[i] = i;
+
+    /* Write to one dataset */
+    if(H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Dclose(did1) < 0)
+	goto error;
+    if(H5Dclose(did2) < 0)
+	goto error;
+
+
+    /* 
+     * Create 2 chunked datasets with version 2 B-tree chunk indexing type 
+     * (one with data; one without data)
+     */
+
+    /* Create dataspace */
+    max_dims[0] = 10;
+    max_dims[0] = H5S_UNLIMITED;
+    max_dims[1] = H5S_UNLIMITED;
+    if((sid = H5Screate_simple(2, dims2, max_dims)) < 0)
+	goto error;
+
+    /* Create the 2 datasets */
+    if((did1  = H5Dcreate2(fid, DSET_NDATA_BT2, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    if((did2  = H5Dcreate2(gid, DSET_BT2, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Write to one dataset */
+    if(H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Dclose(did1) < 0)
+	goto error;
+    if(H5Dclose(did2) < 0)
+	goto error;
+
+    /*
+     * Create 2 chunked datasets with fixed array chunk indexing type 
+     * (one with data; one without data)
+     */
+
+    /* Create dataspace */
+    max_dims[0] = 20;
+    max_dims[1] = 10;
+    if((sid = H5Screate_simple(2, dims2, max_dims)) < 0)
+	goto error;
+
+    /* Create the datasets */
+    if((did1  = H5Dcreate2(fid, DSET_FA, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    if((did2  = H5Dcreate2(gid, DSET_NDATA_FA, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Write to the dataset */
+    if(H5Dwrite(did1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Sclose(sid) < 0)
+	goto error;
+    if(H5Dclose(did1) < 0)
+	goto error;
+    if(H5Dclose(did2) < 0)
+	goto error;
+
+
+    /* 
+     * Create 2 chunked datasets with implicit chunk indexing type 
+     * (one with data; one without data)
+     */
+
+    /* Create dataspace */
+    if((sid = H5Screate_simple(2, dims2, NULL)) < 0)
+	goto error;
+
+    /* Set early allocation */
+    if(H5Pset_alloc_time(dcpl, H5D_ALLOC_TIME_EARLY) < 0)
+	goto error;
+
+    /* Create the 2 datasets */
+    if((did1  = H5Dcreate2(fid, DSET_NONE, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    if((did2  = H5Dcreate2(gid, DSET_NDATA_NONE, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
+	goto error;
+
+    /* Write to one dataset */
+    if(H5Dwrite(did1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
+	goto error;
+
+    /* Closing */
+    if(H5Dclose(did1) < 0)
+	goto error;
+    if(H5Dclose(did2) < 0)
+	goto error;
+    if(H5Sclose(sid) < 0)
+	goto error;
+
+    if(H5Pclose(dcpl) < 0)
+	goto error;
+    if(H5Gclose(gid) < 0)
+	goto error;
+    if(H5Fclose(fid) < 0)
+	goto error;
+
+error:
+    H5E_BEGIN_TRY {
+        H5Pclose(dcpl);
+        H5Sclose(sid);
+        H5Dclose(did1);
+        H5Dclose(did2);
+        H5Gclose(gid);
+        H5Fclose(fid);
+        H5Pclose(fapl);
+        H5Pclose(fcpl);
+    } H5E_END_TRY;
+
+} /* gen_ext() */
+
+int main(void)
+{
+    unsigned i, latest;
+
+    /* Generate a non-latest-format file with v3 superblock */
+    gen_non(NON_V3_FILE);
+
+    /* Generate a new format file with a no-filter-edge-chunk dataset */
+    gen_edge(EDGE_V3_FILE);
+
+    /* Generate old/new format file with/without messages in the superblock extension */
+    for(latest = FALSE; latest <= TRUE; latest++) {
+	for(i = 0; i < 8; i++) {
+            char filename[50];
+
+	    HDmemset(filename, 0, sizeof(filename));
+	    if(!latest)
+		HDstrcat(filename, "old_");
+	    HDstrcat(filename, FILENAME[i]);
+
+	    gen_ext(filename, latest, i);
+	}
+    } /* end for latest */
+
+    return 0;
+}
+
diff --git a/tools/h5format_convert/h5format_convert.c b/tools/h5format_convert/h5format_convert.c
new file mode 100644
index 0000000..1098d35
--- /dev/null
+++ b/tools/h5format_convert/h5format_convert.c
@@ -0,0 +1,474 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Programmer:  Vailin Choi; Feb 2015
+ */
+
+
+/*
+ * We include the private header file so we can get to the uniform
+ * programming environment it declares.  
+ * HDF5 API functions (except for H5G_basename())
+ */
+#include "H5private.h"
+#include "h5tools.h"
+#include "h5tools_utils.h"
+#include "h5trav.h"
+
+/* Name of tool */
+#define PROGRAMNAME "h5format_convert"
+
+static char *fname_g = NULL;
+static char *dname_g = NULL;
+static int dset_g = FALSE;
+static int noop_g = FALSE;
+static int verbose_g = 0;
+
+/*
+ * Command-line options: The user can specify short or long-named
+ * parameters.
+ */
+static const char *s_opts = "hVvd:n";
+static struct long_options l_opts[] = {
+        { "help", no_arg, 'h' },
+	{ "hel", no_arg, 'h'},
+	{ "he", no_arg, 'h'},
+        { "version", no_arg, 'V' },
+	{ "version", no_arg, 'V' },
+	{ "versio", no_arg, 'V' },
+	{ "versi", no_arg, 'V' },
+	{ "vers", no_arg, 'V' },
+        { "verbose", no_arg, 'v' },
+        { "verbos", no_arg, 'v' },
+        { "verbo", no_arg, 'v' },
+        { "verb", no_arg, 'v' },
+        { "dname", require_arg, 'd' },
+        { "dnam", require_arg, 'd' },
+        { "dna", require_arg, 'd' },
+        { "dn", require_arg, 'd' },
+        { "noop", no_arg, 'n' },
+        { "noo", no_arg, 'n' },
+        { "no", no_arg, 'n' },
+        { NULL, 0, '\0' }
+};
+
+
+/*-------------------------------------------------------------------------
+ * Function: usage
+ *
+ * Purpose: print usage
+ *
+ * Return: void
+ *
+ *-------------------------------------------------------------------------
+ */
+static void usage(const char *prog) 
+{
+    HDfprintf(stdout, "usage: %s [OPTIONS] file_name\n", prog);
+    HDfprintf(stdout, "  OPTIONS\n");
+    HDfprintf(stdout, "   -h, --help				Print a usage message and exit\n");
+    HDfprintf(stdout, "   -V, --version			Print version number and exit\n");
+    HDfprintf(stdout, "   -v, --verbose			Turn on verbose mode\n");
+    HDfprintf(stdout, "   -d dname, --dname=dataset_name	Pathname for the dataset\n");
+    HDfprintf(stdout, "   -n, --noop				Perform all the steps except the actual conversion\n");
+    HDfprintf(stdout, "\n");
+    HDfprintf(stdout, "Examples of use:\n");
+    HDfprintf(stdout, "\n");
+    HDfprintf(stdout, "h5format_convert -d /group/dataset file_name\n");
+    HDfprintf(stdout, "  Convert the dataset </group/dataset> in the HDF5 file <file_name>:\n");
+    HDfprintf(stdout, "    a. chunked dataset: convert the chunk indexing type to version 1 B-tree\n");
+    HDfprintf(stdout, "    b. compact/contiguous dataset: downgrade the layout version to 3\n");
+    HDfprintf(stdout, "    c. virtual dataset: no action\n");
+    HDfprintf(stdout, "\n");
+    HDfprintf(stdout, "h5format_convert file_name\n");
+    HDfprintf(stdout, "  Convert all datasets in the HDF5 file <file_name>:\n");
+    HDfprintf(stdout, "    a. chunked dataset: convert the chunk indexing type to version 1 B-tree\n");
+    HDfprintf(stdout, "    b. compact/contiguous dataset: downgrade the layout version to 3\n");
+    HDfprintf(stdout, "    c. virtual dataset: no action\n");
+    HDfprintf(stdout, "\n");
+    HDfprintf(stdout, "h5format_convert -n -d /group/dataset file_name\n");
+    HDfprintf(stdout, "  Go through all the steps except the actual conversion when \n");
+    HDfprintf(stdout, "  converting the dataset </group/dataset> in the HDF5 file <file_name>.\n");
+} /* usage() */
+
+/*-------------------------------------------------------------------------
+ * Function: parse_command_line
+ *
+ * Purpose: parse command line input
+ *
+ * Return: Success: 0
+ *  	   Failure: 1
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+parse_command_line(int argc, const char **argv) 
+{
+    int opt;
+
+     /* no arguments */
+    if (argc == 1) {
+        usage(h5tools_getprogname());
+	h5tools_setstatus(EXIT_FAILURE);
+        goto error;
+    }
+
+    /* parse command line options */
+    while ((opt = get_option(argc, argv, s_opts, l_opts)) != EOF) {
+	switch((char) opt) {
+	    case 'h':
+		usage(h5tools_getprogname());
+		h5tools_setstatus(EXIT_SUCCESS);
+		goto error;
+
+	    case 'V':
+		print_version(h5tools_getprogname());
+		h5tools_setstatus(EXIT_SUCCESS);
+		goto error;
+
+	    case 'v':
+		verbose_g = TRUE;
+		break;
+
+	    case 'd': /* -d dname */
+		if(opt_arg != NULL && *opt_arg)
+		    dname_g = HDstrdup(opt_arg);
+		if(dname_g == NULL) {
+		    h5tools_setstatus(EXIT_FAILURE);
+		    error_msg("No dataset name\n", opt_arg);
+		    usage(h5tools_getprogname());
+		    goto error;
+		}
+		dset_g = TRUE;
+		break;
+
+	    case 'n': /* -n */
+		noop_g = TRUE;
+		break;
+
+	    default:
+		h5tools_setstatus(EXIT_FAILURE);
+		usage(h5tools_getprogname());
+		goto error;
+		break;
+	} /* switch */
+    } /* while */
+
+    if (argc <= opt_ind) {
+        error_msg("missing file name\n");
+        usage(h5tools_getprogname());
+	h5tools_setstatus(EXIT_FAILURE);
+        goto error;
+    }
+
+    fname_g = HDstrdup(argv[opt_ind]);
+
+    return(0);
+
+error:
+    return(-1); ;
+} /* parse_command_line() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: leave
+ *
+ * Purpose: Close HDF5
+ *
+ * Return: Does not return
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+leave(int ret)
+{
+    h5tools_close();
+
+    HDexit(ret);
+} /* leave() */
+
+/*-------------------------------------------------------------------------
+ * Function: convert()
+ *
+ * Purpose: To downgrade a dataset's indexing type or layout version:
+ *		For chunked:
+ *		  Downgrade the chunk indexing type to version 1 B-tree
+ *	    	  If type is already version 1 B-tree, no further action
+ *		For compact/contiguous:
+ *		  Downgrade the layout version from 4 to 3
+ *		  If version is already <= 3, no further action
+ *		For virtual:
+ *		  No further action
+ *
+ * Return: Success: 0
+ *  	   Failure: 1
+ *
+ *-------------------------------------------------------------------------
+ */
+static int
+convert(hid_t fid, const char *dname)
+{
+    hid_t dcpl = -1;
+    hid_t did = -1;
+    H5D_layout_t layout_type;
+    H5D_chunk_index_t idx_type;
+
+    /* Open the dataset */
+    if((did = H5Dopen2(fid, dname, H5P_DEFAULT)) < 0) {
+	error_msg("unable to open dataset \"%s\"\n", dname);
+	h5tools_setstatus(EXIT_FAILURE);
+	goto error;
+
+    } else if(verbose_g)
+	HDfprintf(stdout, "Open the dataset\n");
+
+    /* Get the dataset's creation property list */
+    if((dcpl = H5Dget_create_plist(did)) < 0) {
+	error_msg("unable to get the dataset creation property list\n");
+	h5tools_setstatus(EXIT_FAILURE);
+	goto error;
+    }
+
+    /* Get the dataset's layout */
+    if((layout_type = H5Pget_layout(dcpl)) < 0) {
+	error_msg("unable to get the dataset layout type\n");
+	h5tools_setstatus(EXIT_FAILURE);
+	goto error;
+
+    } else if(verbose_g)
+	HDfprintf(stdout, "Retrieve the dataset's layout\n");
+
+    switch(layout_type) {
+	case H5D_CHUNKED:
+	    if(verbose_g)
+		HDfprintf(stdout, "Dataset is a chunked dataset\n");
+
+	    /* Get the dataset's chunk indexing type */
+	    if(H5Dget_chunk_index_type(did, &idx_type) < 0) {
+		error_msg("unable to get the chunk indexing type for \"%s\"\n", dname);
+		h5tools_setstatus(EXIT_FAILURE);
+		goto error;
+	    } else if(verbose_g)
+		HDfprintf(stdout, "Retrieve the dataset's chunk indexing type\n");
+
+	    if(idx_type == H5D_CHUNK_IDX_BTREE) {
+		if(verbose_g)
+		    HDfprintf(stdout, "Dataset's chunk indexing type is already version 1 B-tree: no further action\n");
+		h5tools_setstatus(EXIT_SUCCESS);
+		goto done;
+	    } else if (verbose_g)
+		HDfprintf(stdout, "Dataset's chunk indexing type is not version 1 B-tree\n");
+	    break;
+
+	case H5D_CONTIGUOUS:
+	    if(verbose_g)
+		HDfprintf(stdout, "Dataset is a contiguous dataset: downgrade layout version as needed\n");
+	    break;
+
+        case H5D_COMPACT:
+	    if(verbose_g)
+		HDfprintf(stdout, "Dataset is a compact dataset: downgrade layout version as needed\n");
+	    break;
+
+        case H5D_VIRTUAL:
+	    if(verbose_g)
+		HDfprintf(stdout, "No further action for virtual dataset\n");
+	    goto done;
+
+        case H5D_NLAYOUTS:
+        case H5D_LAYOUT_ERROR:
+	default:
+	    error_msg("unknown layout type for \"%s\"\n", dname);
+	    h5tools_setstatus(EXIT_FAILURE);
+	    goto error;
+
+    } /* end switch */
+
+    /* No further action if it is a noop */
+    if(noop_g) {
+	if(verbose_g)
+	    HDfprintf(stdout, "Not converting the dataset\n");
+	h5tools_setstatus(EXIT_SUCCESS);
+	goto done;
+    }
+
+    if(verbose_g)
+	HDfprintf(stdout, "Converting the dataset...\n");
+
+    /* Downgrade the dataset */
+    if(H5Dformat_convert(did) < 0) {
+	error_msg("unable to downgrade dataset for \"%s\"\n", dname);
+	h5tools_setstatus(EXIT_FAILURE);
+	goto error;
+    } else if(verbose_g)
+	HDfprintf(stdout, "Done\n");
+
+done:
+    /* Close the dataset */
+    if(H5Dclose(did) < 0) {
+        error_msg("unable to close dataset \"%s\"\n", dname);
+        h5tools_setstatus(EXIT_FAILURE);
+	goto error;
+    } else if(verbose_g)
+	HDfprintf(stdout, "Close the dataset\n");
+    
+    /* Close the dataset creation property list */
+    if(H5Pclose(dcpl) < 0) {
+        error_msg("unable to close dataset creation property list\n");
+        h5tools_setstatus(EXIT_FAILURE);
+	goto error;
+    } else if(verbose_g)
+	printf("Close the dataset creation property list\n");
+
+    return(0);
+
+error:
+    if(verbose_g)
+	HDfprintf(stdout, "Error encountered\n");
+
+    H5E_BEGIN_TRY {
+        H5Pclose(dcpl);
+        H5Dclose(did);
+    } H5E_END_TRY;
+
+    return(-1);
+} /* convert() */
+
+/*-------------------------------------------------------------------------
+ * Function: convert_dsets_cb()
+ *
+ * Purpose:  The callback routine from the traversal to convert the
+ *	     chunk indexing type of the dataset object.
+ *
+ * Return: Success: 0
+ *  	   Failure: 1
+ *-------------------------------------------------------------------------
+ */
+static int
+convert_dsets_cb(const char *path, const H5O_info_t *oi, const char *already_visited, void *_fid)
+{
+    hid_t fid = *(hid_t *)_fid;
+
+    /* If the object has already been seen then just return */
+    if(NULL == already_visited) {
+        if(oi->type == H5O_TYPE_DATASET) {
+	    if(verbose_g)
+		HDfprintf(stdout, "Going to process dataset:%s...\n", path);
+	    if(convert(fid, path) < 0)
+		goto error;
+	} /* end if */
+    } /* end if */
+
+    return 0;
+
+error:
+    return -1;
+} /* end convert_dsets_cb() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: main
+ *
+ * Purpose: To convert the chunk indexing type of a dataset in a file to
+ *	    version 1 B-tree.
+ *
+ * Return: Success: 0
+ *  	   Failure: 1
+ *
+ *-------------------------------------------------------------------------
+ */
+int
+main(int argc, const char *argv[])
+{
+    H5E_auto2_t func;
+    void *edata;
+    hid_t fid = -1;
+
+    h5tools_setprogname(PROGRAMNAME);
+    h5tools_setstatus(EXIT_SUCCESS);
+
+    /* Disable error reporting */
+    H5Eget_auto2(H5E_DEFAULT, &func, &edata);
+    H5Eset_auto2(H5E_DEFAULT, NULL, NULL);
+
+    /* Initialize h5tools lib */
+    h5tools_init();
+
+    /* Parse command line options */
+    if(parse_command_line(argc, argv) < 0)
+	goto done;
+    else if(verbose_g)
+	HDfprintf(stdout, "Process command line options\n");
+
+    if(noop_g && verbose_g)
+	HDfprintf(stdout, "It is noop...\n");
+
+    /* Open the HDF5 file */
+    if((fid = h5tools_fopen(fname_g, H5F_ACC_RDWR, H5P_DEFAULT, NULL, NULL, 0)) < 0) {
+	error_msg("unable to open file \"%s\"\n", fname_g);
+	h5tools_setstatus(EXIT_FAILURE);
+	goto done;
+    } else if(verbose_g)
+	HDfprintf(stdout, "Open the file %s\n", fname_g);
+
+    if(dset_g) { /* Convert a specified dataset in the file */
+	if(verbose_g)
+	    HDfprintf(stdout, "Going to process dataset: %s...\n", dname_g);
+	if(convert(fid, dname_g) < 0)
+	    goto done;
+    } else { /* Convert all datasets in the file */
+	if(verbose_g)
+	    HDfprintf(stdout, "Processing all datasets in the file...\n");
+	if(h5trav_visit(fid, "/", TRUE, TRUE, convert_dsets_cb, NULL, &fid) < 0)
+	    goto done;
+    } /* end else */
+
+    if(verbose_g) {
+        if(noop_g) {
+            HDfprintf(stdout, "Not processing the file's superblock...\n");
+            h5tools_setstatus(EXIT_SUCCESS);
+            goto done;
+        } /* end if */
+        HDfprintf(stdout, "Processing the file's superblock...\n");
+    } /* end if */
+
+    /* Process superblock */
+    if(H5Fformat_convert(fid) < 0) {
+        error_msg("unable to convert file's superblock\"%s\"\n", fname_g);
+        h5tools_setstatus(EXIT_FAILURE);
+        goto done;
+    } /* end if */
+
+done:
+    /* Close the file */
+    if(fid >= 0) {
+	if(H5Fclose(fid) < 0) {
+	    error_msg("unable to close file \"%s\"\n", fname_g);
+	    h5tools_setstatus(EXIT_FAILURE);
+	} else if(verbose_g)
+	    HDfprintf(stdout, "Close the file\n");
+    }  /* end if */
+
+    if(fname_g)
+	HDfree(fname_g);
+    if(dname_g)
+	HDfree(dname_g);
+    
+    H5Eset_auto2(H5E_DEFAULT, func, edata);
+    leave(h5tools_getstatus());
+
+} /* end main() */
+
diff --git a/tools/h5format_convert/testfiles/h5fc_d_file.ddl b/tools/h5format_convert/testfiles/h5fc_d_file.ddl
new file mode 100644
index 0000000..ad7a2f4
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_d_file.ddl
@@ -0,0 +1,26 @@
+usage: h5format_convert [OPTIONS] file_name
+  OPTIONS
+   -h, --help				Print a usage message and exit
+   -V, --version			Print version number and exit
+   -v, --verbose			Turn on verbose mode
+   -d dname, --dname=dataset_name	Pathname for the dataset
+   -n, --noop				Perform all the steps except the actual conversion
+
+Examples of use:
+
+h5format_convert -d /group/dataset file_name
+  Convert the dataset </group/dataset> in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert file_name
+  Convert all datasets in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert -n -d /group/dataset file_name
+  Go through all the steps except the actual conversion when 
+  converting the dataset </group/dataset> in the HDF5 file <file_name>.
+h5format_convert error: missing file name
diff --git a/tools/h5format_convert/testfiles/h5fc_dname.ddl b/tools/h5format_convert/testfiles/h5fc_dname.ddl
new file mode 100644
index 0000000..0de42cb
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_dname.ddl
@@ -0,0 +1,26 @@
+usage: h5format_convert [OPTIONS] file_name
+  OPTIONS
+   -h, --help				Print a usage message and exit
+   -V, --version			Print version number and exit
+   -v, --verbose			Turn on verbose mode
+   -d dname, --dname=dataset_name	Pathname for the dataset
+   -n, --noop				Perform all the steps except the actual conversion
+
+Examples of use:
+
+h5format_convert -d /group/dataset file_name
+  Convert the dataset </group/dataset> in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert file_name
+  Convert all datasets in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert -n -d /group/dataset file_name
+  Go through all the steps except the actual conversion when 
+  converting the dataset </group/dataset> in the HDF5 file <file_name>.
+h5format_convert error: No dataset name
diff --git a/tools/h5format_convert/testfiles/h5fc_edge_v3.h5 b/tools/h5format_convert/testfiles/h5fc_edge_v3.h5
new file mode 100644
index 0000000..ac7dbd3
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_edge_v3.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext1_f.ddl b/tools/h5format_convert/testfiles/h5fc_ext1_f.ddl
new file mode 100644
index 0000000..fb5192d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext1_f.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 32
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/h5fc_ext1_f.h5 b/tools/h5format_convert/testfiles/h5fc_ext1_f.h5
new file mode 100644
index 0000000..68ba2ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext1_f.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext1_i.ddl b/tools/h5format_convert/testfiles/h5fc_ext1_i.ddl
new file mode 100644
index 0000000..2fff4ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext1_i.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/h5fc_ext1_i.h5 b/tools/h5format_convert/testfiles/h5fc_ext1_i.h5
new file mode 100644
index 0000000..1a58089
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext1_i.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext1_s.ddl b/tools/h5format_convert/testfiles/h5fc_ext1_s.ddl
new file mode 100644
index 0000000..fb5192d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext1_s.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 32
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/h5fc_ext1_s.h5 b/tools/h5format_convert/testfiles/h5fc_ext1_s.h5
new file mode 100644
index 0000000..26e9b25
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext1_s.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext2_if.ddl b/tools/h5format_convert/testfiles/h5fc_ext2_if.ddl
new file mode 100644
index 0000000..2fff4ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext2_if.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/h5fc_ext2_if.h5 b/tools/h5format_convert/testfiles/h5fc_ext2_if.h5
new file mode 100644
index 0000000..e5c5e25
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext2_if.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext2_is.ddl b/tools/h5format_convert/testfiles/h5fc_ext2_is.ddl
new file mode 100644
index 0000000..2fff4ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext2_is.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/h5fc_ext2_is.h5 b/tools/h5format_convert/testfiles/h5fc_ext2_is.h5
new file mode 100644
index 0000000..0e3eca7
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext2_is.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext2_sf.ddl b/tools/h5format_convert/testfiles/h5fc_ext2_sf.ddl
new file mode 100644
index 0000000..fb5192d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext2_sf.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 32
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/h5fc_ext2_sf.h5 b/tools/h5format_convert/testfiles/h5fc_ext2_sf.h5
new file mode 100644
index 0000000..cb15f03
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext2_sf.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext3_isf.ddl b/tools/h5format_convert/testfiles/h5fc_ext3_isf.ddl
new file mode 100644
index 0000000..2fff4ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext3_isf.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/h5fc_ext3_isf.h5 b/tools/h5format_convert/testfiles/h5fc_ext3_isf.h5
new file mode 100644
index 0000000..d46cef4
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext3_isf.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_ext_none.h5 b/tools/h5format_convert/testfiles/h5fc_ext_none.h5
new file mode 100644
index 0000000..defbcb3
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_ext_none.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_help.ddl b/tools/h5format_convert/testfiles/h5fc_help.ddl
new file mode 100644
index 0000000..aef8c63
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_help.ddl
@@ -0,0 +1,25 @@
+usage: h5format_convert [OPTIONS] file_name
+  OPTIONS
+   -h, --help				Print a usage message and exit
+   -V, --version			Print version number and exit
+   -v, --verbose			Turn on verbose mode
+   -d dname, --dname=dataset_name	Pathname for the dataset
+   -n, --noop				Perform all the steps except the actual conversion
+
+Examples of use:
+
+h5format_convert -d /group/dataset file_name
+  Convert the dataset </group/dataset> in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert file_name
+  Convert all datasets in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert -n -d /group/dataset file_name
+  Go through all the steps except the actual conversion when 
+  converting the dataset </group/dataset> in the HDF5 file <file_name>.
diff --git a/tools/h5format_convert/testfiles/h5fc_non_v3.h5 b/tools/h5format_convert/testfiles/h5fc_non_v3.h5
new file mode 100644
index 0000000..58a340d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_non_v3.h5
diff --git a/tools/h5format_convert/testfiles/h5fc_nonexistdset_file.ddl b/tools/h5format_convert/testfiles/h5fc_nonexistdset_file.ddl
new file mode 100644
index 0000000..39450c0
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_nonexistdset_file.ddl
@@ -0,0 +1 @@
+h5format_convert error: unable to open dataset "nonexist"
diff --git a/tools/h5format_convert/testfiles/h5fc_nonexistfile.ddl b/tools/h5format_convert/testfiles/h5fc_nonexistfile.ddl
new file mode 100644
index 0000000..706ea9d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_nonexistfile.ddl
@@ -0,0 +1 @@
+h5format_convert error: unable to open file "nonexist.h5"
diff --git a/tools/h5format_convert/testfiles/h5fc_nooption.ddl b/tools/h5format_convert/testfiles/h5fc_nooption.ddl
new file mode 100644
index 0000000..aef8c63
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_nooption.ddl
@@ -0,0 +1,25 @@
+usage: h5format_convert [OPTIONS] file_name
+  OPTIONS
+   -h, --help				Print a usage message and exit
+   -V, --version			Print version number and exit
+   -v, --verbose			Turn on verbose mode
+   -d dname, --dname=dataset_name	Pathname for the dataset
+   -n, --noop				Perform all the steps except the actual conversion
+
+Examples of use:
+
+h5format_convert -d /group/dataset file_name
+  Convert the dataset </group/dataset> in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert file_name
+  Convert all datasets in the HDF5 file <file_name>:
+    a. chunked dataset: convert the chunk indexing type to version 1 B-tree
+    b. compact/contiguous dataset: downgrade the layout version to 3
+    c. virtual dataset: no action
+
+h5format_convert -n -d /group/dataset file_name
+  Go through all the steps except the actual conversion when 
+  converting the dataset </group/dataset> in the HDF5 file <file_name>.
diff --git a/tools/h5format_convert/testfiles/h5fc_v_all.ddl b/tools/h5format_convert/testfiles/h5fc_v_all.ddl
new file mode 100644
index 0000000..5e7365d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_v_all.ddl
@@ -0,0 +1,77 @@
+Process command line options
+Open the file tmp.h5
+Processing all datasets in the file...
+Going to process dataset:/DSET_CONTIGUOUS...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a contiguous dataset: downgrade layout version as needed
+Converting the dataset...
+Done
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/DSET_EA...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/DSET_FA...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/DSET_NDATA_BT2...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/DSET_NONE...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/GROUP/DSET_BT2...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/GROUP/DSET_NDATA_EA...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/GROUP/DSET_NDATA_FA...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/GROUP/DSET_NDATA_NONE...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Processing the file's superblock...
+Close the file
diff --git a/tools/h5format_convert/testfiles/h5fc_v_bt1.ddl b/tools/h5format_convert/testfiles/h5fc_v_bt1.ddl
new file mode 100644
index 0000000..c501eb0
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_v_bt1.ddl
@@ -0,0 +1,12 @@
+Process command line options
+Open the file tmp.h5
+Going to process dataset: /GROUP/DSET_BT2...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Processing the file's superblock...
+Close the file
diff --git a/tools/h5format_convert/testfiles/h5fc_v_n_1d.ddl b/tools/h5format_convert/testfiles/h5fc_v_n_1d.ddl
new file mode 100644
index 0000000..ff5da4a
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_v_n_1d.ddl
@@ -0,0 +1,14 @@
+Process command line options
+It is noop...
+Open the file tmp.h5
+Going to process dataset: /DSET_EA...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is not version 1 B-tree
+Not converting the dataset
+Close the dataset
+Close the dataset creation property list
+Not processing the file's superblock...
+Close the file
diff --git a/tools/h5format_convert/testfiles/h5fc_v_n_all.ddl b/tools/h5format_convert/testfiles/h5fc_v_n_all.ddl
new file mode 100644
index 0000000..d2ffbbf
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_v_n_all.ddl
@@ -0,0 +1,56 @@
+Process command line options
+It is noop...
+Open the file tmp.h5
+Processing all datasets in the file...
+Going to process dataset:/DSET_CONTIGUOUS...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a contiguous dataset: downgrade layout version as needed
+Not converting the dataset
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/DSET_NDATA_BT2...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is not version 1 B-tree
+Not converting the dataset
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/DSET_NDATA_EA...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is not version 1 B-tree
+Not converting the dataset
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/GROUP/DSET_BT2...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is not version 1 B-tree
+Not converting the dataset
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/GROUP/DSET_COMPACT...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a contiguous dataset: downgrade layout version as needed
+Not converting the dataset
+Close the dataset
+Close the dataset creation property list
+Going to process dataset:/GROUP/DSET_EA...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is not version 1 B-tree
+Not converting the dataset
+Close the dataset
+Close the dataset creation property list
+Not processing the file's superblock...
+Close the file
diff --git a/tools/h5format_convert/testfiles/h5fc_v_ndata_bt1.ddl b/tools/h5format_convert/testfiles/h5fc_v_ndata_bt1.ddl
new file mode 100644
index 0000000..ba794a7
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_v_ndata_bt1.ddl
@@ -0,0 +1,13 @@
+Process command line options
+It is noop...
+Open the file tmp.h5
+Going to process dataset: /DSET_NDATA_BT2...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a chunked dataset
+Retrieve the dataset's chunk indexing type
+Dataset's chunk indexing type is already version 1 B-tree: no further action
+Close the dataset
+Close the dataset creation property list
+Not processing the file's superblock...
+Close the file
diff --git a/tools/h5format_convert/testfiles/h5fc_v_non_chunked.ddl b/tools/h5format_convert/testfiles/h5fc_v_non_chunked.ddl
new file mode 100644
index 0000000..aba0740
--- /dev/null
+++ b/tools/h5format_convert/testfiles/h5fc_v_non_chunked.ddl
@@ -0,0 +1,12 @@
+Process command line options
+Open the file tmp.h5
+Going to process dataset: /DSET_CONTIGUOUS...
+Open the dataset
+Retrieve the dataset's layout
+Dataset is a contiguous dataset: downgrade layout version as needed
+Converting the dataset...
+Done
+Close the dataset
+Close the dataset creation property list
+Processing the file's superblock...
+Close the file
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext1_f.ddl b/tools/h5format_convert/testfiles/old_h5fc_ext1_f.ddl
new file mode 100644
index 0000000..fb5192d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext1_f.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 32
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext1_f.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext1_f.h5
new file mode 100644
index 0000000..3cbc7f4
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext1_f.h5
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext1_i.ddl b/tools/h5format_convert/testfiles/old_h5fc_ext1_i.ddl
new file mode 100644
index 0000000..c906082
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext1_i.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 1
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext1_i.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext1_i.h5
new file mode 100644
index 0000000..a2c9187
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext1_i.h5
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext1_s.ddl b/tools/h5format_convert/testfiles/old_h5fc_ext1_s.ddl
new file mode 100644
index 0000000..fb5192d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext1_s.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 32
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext1_s.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext1_s.h5
new file mode 100644
index 0000000..fdf4f33
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext1_s.h5
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext2_if.ddl b/tools/h5format_convert/testfiles/old_h5fc_ext2_if.ddl
new file mode 100644
index 0000000..2fff4ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext2_if.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext2_if.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext2_if.h5
new file mode 100644
index 0000000..6bf0a2f
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext2_if.h5
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext2_is.ddl b/tools/h5format_convert/testfiles/old_h5fc_ext2_is.ddl
new file mode 100644
index 0000000..2fff4ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext2_is.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext2_is.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext2_is.h5
new file mode 100644
index 0000000..c0c7ecc
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext2_is.h5
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext2_sf.ddl b/tools/h5format_convert/testfiles/old_h5fc_ext2_sf.ddl
new file mode 100644
index 0000000..fb5192d
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext2_sf.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 32
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext2_sf.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext2_sf.h5
new file mode 100644
index 0000000..055cabf
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext2_sf.h5
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext3_isf.ddl b/tools/h5format_convert/testfiles/old_h5fc_ext3_isf.ddl
new file mode 100644
index 0000000..2fff4ac
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext3_isf.ddl
@@ -0,0 +1,58 @@
+HDF5 "./testfiles/tmp.h5" {
+SUPER_BLOCK {
+   SUPERBLOCK_VERSION 2
+   FREELIST_VERSION 0
+   SYMBOLTABLE_VERSION 0
+   OBJECTHEADER_VERSION 0
+   OFFSET_SIZE 8
+   LENGTH_SIZE 8
+   BTREE_RANK 16
+   BTREE_LEAF 4
+   ISTORE_K 64
+   FILE_SPACE_STRATEGY H5F_FILE_SPACE_ALL
+   FREE_SPACE_THRESHOLD 1
+   USER_BLOCK {
+      USERBLOCK_SIZE 0
+   }
+}
+GROUP "/" {
+   DATASET "DSET_CONTIGUOUS" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 10 ) / ( 10 ) }
+   }
+   DATASET "DSET_EA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_FA" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+   }
+   DATASET "DSET_NDATA_BT2" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+   }
+   DATASET "DSET_NONE" {
+      DATATYPE  H5T_STD_I32LE
+      DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+   }
+   GROUP "GROUP" {
+      DATASET "DSET_BT2" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( H5S_UNLIMITED, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_EA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 10, H5S_UNLIMITED ) }
+      }
+      DATASET "DSET_NDATA_FA" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 20, 10 ) }
+      }
+      DATASET "DSET_NDATA_NONE" {
+         DATATYPE  H5T_STD_I32LE
+         DATASPACE  SIMPLE { ( 4, 6 ) / ( 4, 6 ) }
+      }
+   }
+}
+}
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext3_isf.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext3_isf.h5
new file mode 100644
index 0000000..f4caaf4
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext3_isf.h5
diff --git a/tools/h5format_convert/testfiles/old_h5fc_ext_none.h5 b/tools/h5format_convert/testfiles/old_h5fc_ext_none.h5
new file mode 100644
index 0000000..d0bf344
--- /dev/null
+++ b/tools/h5format_convert/testfiles/old_h5fc_ext_none.h5
diff --git a/tools/h5format_convert/testh5fc.sh.in b/tools/h5format_convert/testh5fc.sh.in
new file mode 100644
index 0000000..f712434
--- /dev/null
+++ b/tools/h5format_convert/testh5fc.sh.in
@@ -0,0 +1,494 @@
+#! /bin/sh
+#
+# Copyright by The HDF Group.
+# Copyright by the Board of Trustees of the University of Illinois.
+# All rights reserved.
+#
+# This file is part of HDF5.  The full HDF5 copyright notice, including
+# terms governing use, modification, and redistribution, is contained in
+# the files COPYING and Copyright.html.  COPYING can be found at the root
+# of the source code distribution tree; Copyright.html can be found at the
+# root level of an installed copy of the electronic HDF5 document set and
+# is linked from the top-level documents page.  It can also be found at
+# http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have
+# access to either file, you may request a copy from help@hdfgroup.org.
+#
+# Tests for the h5format_convert tool
+#
+#
+
+srcdir=@srcdir@
+
+# Determine which filters are available
+USE_FILTER_SZIP="@USE_FILTER_SZIP@"
+USE_FILTER_DEFLATE="@USE_FILTER_DEFLATE@"
+USE_FILTER_SHUFFLE="@USE_FILTER_SHUFFLE@"
+USE_FILTER_FLETCHER32="@USE_FILTER_FLETCHER32@"
+USE_FILTER_NBIT="@USE_FILTER_NBIT@"
+USE_FILTER_SCALEOFFSET="@USE_FILTER_SCALEOFFSET@"
+
+TESTNAME=h5format_convert
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+
+FORMCONV=h5format_convert       # The tool name
+FORMCONV_BIN=`pwd`/$FORMCONV    # The path of the tool binary
+
+CHK_IDX=h5fc_chk_idx		# The program name
+CHK_IDX_BIN=`pwd`/$CHK_IDX    	# The program to verify the chunk indexing type is v1 B-tree
+
+RM='rm -rf'
+CMP='cmp -s'
+DIFF='diff -c'
+CP='cp'
+H5DUMP=../h5dump/h5dump         # The h5dump tool name
+H5DUMP_BIN=`pwd`/$H5DUMP        # The path of the h5dump tool binary
+DIRNAME='dirname'
+LS='ls'
+AWK='awk'
+
+nerrors=0
+verbose=yes
+
+# source dirs
+SRC_TOOLS="$srcdir/.."
+SRC_TOOLS_TESTFILES="$SRC_TOOLS/testfiles"
+
+# testfiles source dirs for tools
+SRC_H5LS_TESTFILES="$SRC_TOOLS_TESTFILES"
+SRC_H5DUMP_TESTFILES="$SRC_TOOLS_TESTFILES"
+SRC_H5DIFF_TESTFILES="$SRC_TOOLS/h5diff/testfiles"
+SRC_H5COPY_TESTFILES="$SRC_TOOLS/h5copy/testfiles"
+SRC_H5REPACK_TESTFILES="$SRC_TOOLS/h5repack/testfiles"
+SRC_H5JAM_TESTFILES="$SRC_TOOLS/h5jam/testfiles"
+SRC_H5STAT_TESTFILES="$SRC_TOOLS/h5stat/testfiles"
+SRC_H5IMPORT_TESTFILES="$SRC_TOOLS/h5import/testfiles"
+SRC_H5FORMCONV_TESTFILES="$SRC_TOOLS/h5format_convert/testfiles"
+
+TESTDIR=./testfiles
+test -d $TESTDIR || mkdir $TESTDIR
+
+# Copy the testfile to a temporary file for testing as h5format_convert is changing the file in place
+TMPFILE=tmp.h5
+
+######################################################################
+# test files
+# --------------------------------------------------------------------
+# All the test files copy from source directory to test directory
+# NOTE: Keep this framework to add/remove test files.
+#       Any test files from other tools can be used in this framework.
+#       This list are also used for checking exist.
+#       Comment '#' without space can be used.
+# --------------------------------------------------------------------
+LIST_HDF5_TEST_FILES="
+$SRC_H5FORMCONV_TESTFILES/h5fc_non_v3.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_edge_v3.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext_none.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext_none.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext1_i.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext1_s.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext1_f.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext2_if.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext2_is.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext2_sf.h5
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext3_isf.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext1_i.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext1_s.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext1_f.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext2_if.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext2_is.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext2_sf.h5
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext3_isf.h5
+"
+
+LIST_OTHER_TEST_FILES="
+$SRC_H5FORMCONV_TESTFILES/h5fc_help.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_nooption.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_nonexistfile.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_d_file.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_dname.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_nonexistdset_file.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_v_non_chunked.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_v_bt1.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_v_ndata_bt1.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_v_all.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_v_n_1d.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_v_n_all.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext1_i.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext1_s.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext1_f.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext2_if.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext2_is.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext2_sf.ddl
+$SRC_H5FORMCONV_TESTFILES/h5fc_ext3_isf.ddl
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext1_i.ddl
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext1_s.ddl
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext1_f.ddl
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext2_if.ddl
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext2_is.ddl
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext2_sf.ddl
+$SRC_H5FORMCONV_TESTFILES/old_h5fc_ext3_isf.ddl
+"
+
+#
+# copy test files and expected output files from source dirs to test dir
+#
+COPY_TESTFILES="$LIST_HDF5_TEST_FILES $LIST_OTHER_TEST_FILES"
+
+COPY_TESTFILES_TO_TESTDIR()
+{
+    # copy test files. Used -f to make sure get a new copy
+    for tstfile in $COPY_TESTFILES
+    do
+        # ignore '#' comment
+        echo $tstfile | tr -d ' ' | grep '^#' > /dev/null
+        RET=$?
+        if [ $RET -eq 1 ]; then
+            # skip cp if srcdir is same as destdir
+            # this occurs when build/test performed in source dir and
+            # make cp fail
+            SDIR=`$DIRNAME $tstfile`
+            INODE_SDIR=`$LS -i -d $SDIR | $AWK -F' ' '{print $1}'`
+            INODE_DDIR=`$LS -i -d $TESTDIR | $AWK -F' ' '{print $1}'`
+            if [ "$INODE_SDIR" != "$INODE_DDIR" ]; then
+    	        $CP -f $tstfile $TESTDIR
+                if [ $? -ne 0 ]; then
+                    echo "Error: FAILED to copy $tstfile ."
+                
+                    # Comment out this to CREATE expected file
+                    exit $EXIT_FAILURE
+                fi
+            fi
+        fi
+    done
+}
+
+CLEAN_TESTFILES_AND_TESTDIR()
+{
+    # skip rm if srcdir is same as destdir
+    # this occurs when build/test performed in source dir and
+    # make cp fail
+    SDIR=`$DIRNAME $tstfile`
+    INODE_SDIR=`$LS -i -d $SDIR | $AWK -F' ' '{print $1}'`
+    INODE_DDIR=`$LS -i -d $TESTDIR | $AWK -F' ' '{print $1}'`
+    if [ "$INODE_SDIR" != "$INODE_DDIR" ]; then
+        $RM $TESTDIR
+    else
+	$RM $TESTDIR/$TMPFILE
+    fi
+}
+
+# Print a line-line message left justified in a field of 80 characters
+# beginning with the word "Testing".
+#
+TESTING() {
+   SPACES="                                                               "
+   echo "Testing $* $SPACES" | cut -c1-80 | tr -d '\012'
+}
+
+# Run a test and print PASS or *FAIL*.  If a test fails then increment
+# the `nerrors' global variable and (if $verbose is set) display the
+# difference between the actual output and the expected output. The
+# expected output is given as the first argument to this function and
+# the actual output file is calculated by replacing the `.ddl' with
+# `.out'.  The actual output is not removed if $HDF5_NOCLEANUP has a
+# non-zero value.
+#
+# $1: expected output
+# $2: the test file name 
+#	--fname might be empty or fname does not exist
+#	--fname is copied to a temporary file for testing
+# $3 to at most $6--options to the tool such as:
+# 	-d dname or --dname=dname 
+# 	-v or --verbose
+# 	-n or --noop
+TOOLTEST_OUT() {
+    # Prepare expected and actual output
+    expect="$TESTDIR/$1"
+    actual="$TESTDIR/`basename $1 .ddl`.out"
+    actual_err="$TESTDIR/`basename $1 .ddl`.err"
+    actual_sav=${actual}-sav
+    actual_err_sav=${actual_err}-sav
+
+    # Prepare the test file
+    $RM $TESTDIR/$TMPFILE
+    TFILE=$2
+    if [ ! -z "$2" ] && [ -e $TESTDIR/$2 ] ; then
+	$CP $TESTDIR/$2 $TESTDIR/$TMPFILE
+	TFILE=$TMPFILE
+    fi
+
+    # Run test.
+    TESTING $FORMCONV $3 $4 $5 $6 $2
+    (
+	cd $TESTDIR
+	$RUNSERIAL $FORMCONV_BIN $3 $4 $5 $6 $TFILE
+    ) >$actual 2>$actual_err
+    cp $actual $actual_sav
+    cp $actual_err $actual_err_sav
+    cat $actual_err >> $actual
+
+    # Compare output
+    COMPARE_OUT $expect $actual
+
+    # Clean up output file
+    if test -z "$HDF5_NOCLEANUP"; then
+	$RM $actual $actual_err
+	$RM $actual $actual_err $actual_sav $actual_err_sav
+    fi
+}
+
+# To check that the tool exits success, no output 
+# Assume all short options
+# $1 is the test file name 
+#	--fname exists
+#	--fname is copied to a temporary file for testing
+# $2 to at most $4--options to the tool such as:
+# 	-d dname
+# 	-n
+TOOLTEST() {
+    TESTING $FORMCONV $2 $3 $4 $1
+    $RM $TESTDIR/$TMPFILE
+    $CP $TESTDIR/$1 $TESTDIR/$TMPFILE
+    $RUNSERIAL $FORMCONV_BIN $2 $3 $4 $TESTDIR/$TMPFILE
+    exitcode=$?
+    if [ $exitcode -ne 0 ]; then
+	echo "*FAILED*"
+	echo "    The tool exits failure"
+	nerrors="`expr $nerrors + 1`"
+    else
+	echo " PASSED"
+    fi
+}
+
+CHECKING() {
+   SPACES="                                                               "
+   echo "Verifying $* $SPACES" | cut -c1-80 | tr -d '\012'
+}
+
+# Assume $TESTDIR/$TMPFILE is the converted test file
+# $1 dataset name
+IDX_CHECK() {
+    CHECKING $1
+    $RUNSERIAL $CHK_IDX_BIN $TESTDIR/$TMPFILE $1
+    ret=$?
+    if [ $ret -eq 0 ]; then
+	echo " PASSED"
+    else
+	echo "*FAILED*"
+	echo "    The chunk indexing type is not correct"
+	nerrors="`expr $nerrors + 1`"
+    fi
+}
+
+# $1 is the expected output
+# $2 is the output from testing
+COMPARE_OUT() {
+    if $CMP $1 $2; then
+        echo " PASSED"
+    else
+        echo "*FAILED*"
+        echo "    Expected result (*.ddl) differs from actual result (*.out)"
+        nerrors="`expr $nerrors + 1`"
+        test yes = "$verbose" && $DIFF $expect $actual |sed 's/^/    /'
+    fi
+}
+
+# Assume $TESTDIR/$TMPFILE is the converted test file
+# $1 is the test file for verifying h5dump output
+# $2 is the expected output from h5dump
+H5DUMP_CHECK() {
+    CHECKING h5dump output for $1
+    expect="$TESTDIR/$2"
+    actual="$TESTDIR/`basename $2 .ddl`.out"
+    actual_err="$TESTDIR/`basename $2 .ddl`.err"
+    $RUNSERIAL $H5DUMP_BIN -BH $TESTDIR/$TMPFILE > $actual 2>$actual_err
+    cat $actual_err >> $actual
+
+    # Compare output
+    COMPARE_OUT $expect $actual
+
+    # Clean up output file
+    if test -z "$HDF5_NOCLEANUP"; then
+	$RM $actual $actual_err
+    fi
+}
+
+# Print a "SKIP" message
+SKIP() {
+    TESTING $STAT $@
+    echo  " -SKIP-"
+}
+  
+
+
+##############################################################################
+##############################################################################
+###			  T H E   T E S T S                                ###
+##############################################################################
+##############################################################################
+# prepare for test
+COPY_TESTFILES_TO_TESTDIR
+#
+#
+#
+# h5format_convert --help
+# h5format_convert (no options)
+# h5format_convert nonexist.h5  (no options, file does not exist)
+TOOLTEST_OUT h5fc_help.ddl '' --help
+TOOLTEST_OUT h5fc_nooption.ddl ''
+TOOLTEST_OUT h5fc_nonexistfile.ddl nonexist.h5
+#
+#
+# h5format_convert -d old_h5fc_ext_none.h5 (just -d option, file exists)
+# h5format_convert --dname old_h5fc_ext_none.h5 (just --dname option, file exists)
+# h5format_convert --dname (just --dname option)
+# h5format_convert --dname=nonexist old_h5fc_ext_none.h5 (dataset does not exist, file exists)
+TOOLTEST_OUT h5fc_d_file.ddl old_h5fc_ext_none.h5 -d
+TOOLTEST_OUT h5fc_d_file.ddl old_h5fc_ext_none.h5 --dname
+TOOLTEST_OUT h5fc_dname.ddl '' --dname
+TOOLTEST_OUT h5fc_nonexistdset_file.ddl old_h5fc_ext_none.h5 --dname=nonexist
+#
+#
+#
+# h5format_convert -d /DSET_CONTIGUOUS -v old_h5fc_ext_none.h5 (verbose, contiguous dataset)
+# h5format_convert -d /GROUP/DSET_BT2 --verbose old_h5fc_ext_none.h5 (verbose, bt1 dataset)
+# h5format_convert -d /DSET_NDATA_BT2 -v -n old_h5fc_ext_none.h5 (verbose, noop, bt1+nodata dataset)
+# h5format_convert -v old_h5fc_ext_none.h5 (verbose, all datasets)
+TOOLTEST_OUT h5fc_v_non_chunked.ddl old_h5fc_ext_none.h5 -d /DSET_CONTIGUOUS -v
+TOOLTEST_OUT h5fc_v_bt1.ddl old_h5fc_ext_none.h5 -d /GROUP/DSET_BT2 --verbose
+TOOLTEST_OUT h5fc_v_ndata_bt1.ddl old_h5fc_ext_none.h5 -d /DSET_NDATA_BT2 -v -n
+TOOLTEST_OUT h5fc_v_all.ddl old_h5fc_ext_none.h5 -v
+#
+#
+#
+# h5format_convert -d /DSET_EA -v -n h5fc_ext_none.h5 (verbose, noop, one ea dataset)
+# h5format_convert -v -n h5fc_non_v3.h5 (verbose, noop, all datasets)
+TOOLTEST_OUT h5fc_v_n_1d.ddl h5fc_ext_none.h5 -d /DSET_EA -v -n
+TOOLTEST_OUT h5fc_v_n_all.ddl h5fc_non_v3.h5 -v -n
+#
+#
+#
+# No output from tests
+# 1) Use the tool to convert the dataset
+# 2) Verify the chunk indexing type is correct
+# h5format_convert -d /DSET_EA h5fc_ext_none.h5
+# h5format_convert -d /GROUP/DSET_NDATA_EA h5fc_ext_none.h5
+# h5format_convert -d /GROUP/DSET_BT2 h5fc_ext_none.h5
+# h5format_convert -d /DSET_NDATA_BT2 h5fc_ext_none.h5
+# h5format_convert -d /DSET_FA h5fc_ext_none.h5
+# h5format_convert -d /GROUP/DSET_FA h5fc_ext_none.h5
+# h5format_convert -d /DSET_NONE h5fc_ext_none.h5
+# h5format_convert -d /GROUP/DSET_NDATA_NONE h5fc_ext_none.h5
+TOOLTEST h5fc_ext_none.h5 -d /DSET_EA
+IDX_CHECK /DSET_EA
+#
+TOOLTEST h5fc_ext_none.h5 -d /GROUP/DSET_NDATA_EA
+IDX_CHECK /GROUP/DSET_NDATA_EA
+#
+TOOLTEST h5fc_ext_none.h5 -d /GROUP/DSET_BT2
+IDX_CHECK /GROUP/DSET_BT2
+#
+TOOLTEST h5fc_ext_none.h5 -d /DSET_NDATA_BT2
+IDX_CHECK /DSET_NDATA_BT2
+#
+TOOLTEST h5fc_ext_none.h5 -d /DSET_FA
+IDX_CHECK /DSET_FA
+#
+TOOLTEST h5fc_ext_none.h5 -d /GROUP/DSET_NDATA_FA
+IDX_CHECK /GROUP/DSET_NDATA_FA
+#
+TOOLTEST h5fc_ext_none.h5 -d /DSET_NONE
+IDX_CHECK /DSET_NONE
+#
+TOOLTEST h5fc_ext_none.h5 -d /GROUP/DSET_NDATA_NONE
+IDX_CHECK /GROUP/DSET_NDATA_NONE
+#
+#
+#
+# No output from tests: just check exit code
+# h5format_convert -d /DSET_NDATA_BT2 old_h5fc_ext_none.h5 (v1-btree dataset)
+# h5format_convert -d /DSET_CONTIGUOUS h5fc_non_v3.h5 (non-chunked dataset)
+TOOLTEST old_h5fc_ext_none.h5 -d /DSET_NDATA_BT2
+TOOLTEST h5fc_non_v3.h5 -d /DSET_CONTIGUOUS
+#
+#
+#
+# No output from tests: just check exit code
+# h5format_convert -d /GROUP/DSET_BT2 -n h5fc_non_v3.h5 (noop, one dataset)
+# h5format_convert -n h5fc_non_v3.h5 (noop, all datasets)
+TOOLTEST h5fc_non_v3.h5 -d /GROUP/DSET_BT2 -n
+TOOLTEST h5fc_non_v3.h5 -n
+#
+#
+#
+# No output from tests: just check exit code
+# h5format_convert h5fc_non_v3.h5
+# 1) convert all datasets 
+# 2) verify indexing types
+TOOLTEST h5fc_non_v3.h5
+IDX_CHECK /DSET_NDATA_EA
+IDX_CHECK /DSET_NDATA_BT2
+IDX_CHECK /GROUP/DSET_BT2
+IDX_CHECK /GROUP/DSET_EA
+#
+#
+#
+# No output from test: just check exit code
+# h5format_convert h5fc_edge_v3.h5
+# 1) convert the chunked dataset (filter, no-filter-edge-chunk)
+# 2) verify the indexing type
+TOOLTEST h5fc_edge_v3.h5
+IDX_CHECK /DSET_EDGE
+#
+#
+
+# The following test files have messages in the superblock extension.
+# Verify h5dump output for correctness after conversion
+TOOLTEST h5fc_ext1_i.h5
+H5DUMP_CHECK h5fc_ext1_i.h5 h5fc_ext1_i.ddl
+TOOLTEST h5fc_ext1_s.h5
+H5DUMP_CHECK h5fc_ext1_s.h5 h5fc_ext1_s.ddl
+TOOLTEST h5fc_ext1_f.h5
+H5DUMP_CHECK h5fc_ext1_f.h5 h5fc_ext1_f.ddl
+#
+TOOLTEST h5fc_ext2_if.h5
+H5DUMP_CHECK h5fc_ext2_if.h5 h5fc_ext2_if.ddl
+TOOLTEST h5fc_ext2_is.h5
+H5DUMP_CHECK h5fc_ext2_is.h5 h5fc_ext2_is.ddl
+TOOLTEST h5fc_ext2_sf.h5
+H5DUMP_CHECK h5fc_ext2_sf.h5 h5fc_ext2_sf.ddl
+#
+TOOLTEST h5fc_ext3_isf.h5
+H5DUMP_CHECK h5fc_ext3_isf.h5 h5fc_ext3_isf.ddl
+#
+#
+#
+TOOLTEST old_h5fc_ext1_i.h5
+H5DUMP_CHECK old_h5fc_ext1_i.h5 old_h5fc_ext1_i.ddl
+TOOLTEST old_h5fc_ext1_s.h5
+H5DUMP_CHECK old_h5fc_ext1_s.h5 old_h5fc_ext1_s.ddl
+TOOLTEST old_h5fc_ext1_f.h5
+H5DUMP_CHECK old_h5fc_ext1_f.h5 old_h5fc_ext1_f.ddl
+#
+TOOLTEST old_h5fc_ext2_if.h5
+H5DUMP_CHECK old_h5fc_ext2_if.h5 old_h5fc_ext2_if.ddl
+TOOLTEST old_h5fc_ext2_is.h5
+H5DUMP_CHECK old_h5fc_ext2_is.h5 old_h5fc_ext2_is.ddl
+TOOLTEST old_h5fc_ext2_sf.h5
+H5DUMP_CHECK old_h5fc_ext2_sf.h5 old_h5fc_ext2_sf.ddl
+#
+TOOLTEST old_h5fc_ext3_isf.h5
+H5DUMP_CHECK old_h5fc_ext3_isf.h5 old_h5fc_ext3_isf.ddl
+#
+# Clean up temporary files/directories
+CLEAN_TESTFILES_AND_TESTDIR
+
+if test $nerrors -eq 0 ; then
+    echo "All $TESTNAME tests passed."
+    exit $EXIT_SUCCESS
+else
+    echo "$TESTNAME tests failed with $nerrors errors."
+    exit $EXIT_FAILURE
+fi
+