hdf5: changed to use var_append() to add extra configure options

develop/hdf5/hdf5.conf

@@ -3,6 +3,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../hdf5/hdf5.conf
+# Copyright (C) 2011 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -14,8 +15,13 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
-confopt="$confopt --enable-cxx --enable-threadsafe --enable-stream-vfd --enable-gpfs --with-pthread"
-pkginstalled openssl && confopt="$confopt --with-ssl"
+var_append extraconfopt ' ' "--enable-cxx"
+var_append extraconfopt ' ' "--enable-threadsafe"
+var_append extraconfopt ' ' "--enable-stream-vfd"
+var_append extraconfopt ' ' "--enable-gpfs"
+var_append extraconfopt ' ' "--with-pthread"
+
+pkginstalled openssl && var_append extraconfopt ' ' "--with-ssl"
 
 # TODO:
 # -config option for enable-cxx