[svn-r23350] I cleaned up some code and added comments for my previous checkin of the DESY project.

Tested on koala.

test/plugin_lib/Makefile.in

@@ -1,3 +1,22 @@
+# 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 Test Makefile(.in)
+#
+# This Makefile.in is NOT generated by automake.  Since we want to build 
+# shared libraries for testing, automake can't create shared libraries when
+# configure asks to build static library.
+#
 CFLAGS = -fPIC -g
 CC = @CC@
 SRCDIR = @srcdir@