I am trying to test if a project reference has been defined from inside a wxi 
file by testing one of the constants that should be defined like this:

--------------------------------------------------------
<?if $(var.Project1.TargetDir) ?>
    <!-- do stuff -->
<?endif?>
--------------------------------------------------------

if i have the project reference defined this works great, but if i dont it 
gives a compile error:
Error    3    Undefined preprocessor variable '$(var.Project1.TargetDir)'.

so i figured i better try like this:

--------------------------------------------------------

<?ifdef $(var.Project1.TargetDir) ?>

    <!-- do stuff -->

<?endif?>
--------------------------------------------------------

but this returns false even when the project reference is defined.

Is there a way to make this work?

Thanks,

Steve Baker


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