#1244 Preprocessor variables do not work correctly

[Jens Lorenz]

WiX v3.0.4214.0

1. Although stated otherwise in the documentation, this does not work:

candle.exe -dIExist does work.

Using the statement in a wxs file gives the following candle error.

Product.wxs(7) : error CNDL0151 : The define statement '' is not well-formed. Define statements should be in the form .

1. Checking for defined preprocessor variables does not allow using them, even when the statements are not used. The following statement will give the error CNDL0150: Undefined preprocessor variable '$(var.C)' and refuse to compile.

But the surrounding already checks for existance of the variable. So the enclosed should not be evaluated.

The same is true for this variant.

1. How to check whether a variable has a value.

Gives the error LGHT0196: The WiX variable 'C' was declared without a value. Please specify a value for the variable.

I wanted to check whether a value actually does exist. The documentation does not state how to do this. If its not supported I would encourage implementing this feature.

[Jens Lorenz]

minimal example for illustration

[SourceForge Robot]

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