environment.
In concert with this flag, you must actually set the values in the
environment, via a line like one of the two below:</p>
<pre>
   export FLAGS_foo=xxx; export FLAGS_bar=yyy   # sh
   setenv FLAGS_foo xxx; setenv FLAGS_bar yyy   # tcsh
</pre>
<p>This is equivalent to specifying <code>--foo=xxx</code>,
<code>--bar=yyy</code> on the commandline.</p>

<p>Note it is a fatal error to say <code>--fromenv=foo</code> if
<code>foo</code> is not DEFINED somewhere in the application.  (Though
you can supp