The Package class has a loadPackage() method that is a dynamic version of
::REQUIRES. Just use
.context~package~loadPackage('winsys.cls')
in your prolog code to add the package to your context if you're on
Windows.
Rick
On Sun, Apr 4, 2021 at 12:57 PM Bill Turner, WB4ALM <wb4...@arrl.net> wrote:
> I have a routine that functions under LINUX or under WINDOWS.
>
> It has additional functionality under WINDOWS, that needs a
> ::REQUIRES "winsystm.cls"
> statement.
>
> Obviously, that is not installed on a LINUX based system so it causes an
> error
> that the ".cls" can not be found.
>
> I do not want to maintain two different copies of the same ooRexx script
> and
> I use the PARSE SOURCE instruction to determine the current operating
> system
> and save this value for testing later in the program.
>
> Is there a way to
> (1) conditionally control the execution of the ::REQUIRES statement or
> (2) Trap that specific error so that t can be ignored?
>
> /s/ Bill Turner, wb4alm
>
>
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