Thank you Staz and Robert Purves for the desired details !

>> ...hints about "Carbonizer" Plug In...

Staz :
> this plugin works to determine what toolbox calls in the front most project
> may not be appropriate for os x.

Robert :
> The Carbonizer plug-in seems to be undocumented.

> It searches the source code of a project for toolbox calls, 
> and compares them with a list of calls supported in Carbon.
> The list is similar to that in the Help file "OS-X Supported 
> toolboxes", and it is not clear which version of CarbonLib
> it represents.

> Some calls are wrongly stated to be unsupported, for example:
> SetWTitle
> DebugStr

> There is an alternative method to test for missing toolbox calls.
> Set the checkbox:
> Preferences/DBug/Insure validity of PPC toolboxes
> etc.

Great IDE !

Best to all,

Herbie
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