Fixes ncdump_tst_netcdf4 test failure on big endian.
https://github.com/Unidata/netcdf-c/issues/1896
diff --git a/ncdump/tst_special_atts.c b/ncdump/tst_special_atts.c
index 9655b86..e71cb7e 100644
--- a/ncdump/tst_special_atts.c
+++ b/ncdump/tst_special_atts.c
@@ -145,6 +145,10 @@ main(int argc, char **argv)
    /* Set _Storage as compact */
    if (nc_def_var_chunking(ncid, var6id, NC_COMPACT, NULL)) ERR;
    if (nc_def_var_chunking(ncid, var7id, NC_COMPACT, NULL)) ERR;
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+   if (nc_def_var_endian(ncid, var6id, NC_ENDIAN_LITTLE)) ERR;
+   if (nc_def_var_endian(ncid, var7id, NC_ENDIAN_LITTLE)) ERR;
+#endif
 
    if (nc_enddef(ncid)) ERR;