PROBLEM: (IL_G03334) (PATCH ID: OSF520X11-025)
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This patch fixes a problem where the definition of the X Toolkit
function XtPending() was changed in Tru64 UNIX V5.1A which caused
some applications built on earlier versions of Tru64 UNIX to fail.
The X Toolkit specification has always specified that XtPending()
returns Boolean, however, the sample implementation and the man
page from X.Org up through X11R6.3 had it returning XtInputMask.
In X11R6.4, X.Org changed the sample implementation to match the
specification and that change was included in Tru64 UNIX V5.1A.
Subsequently, that change was found to cause problems for the
ERDAS Imagine application.  This patch changes the definition of
XtPending() back to returning XtInputMask.

Note that XtPending() has been deprecated in favor of
XtAppPending() since at least X11R4.  Applications should be
using XtAppPending() instead of XtPending().