$(...) variables are evaluated at build-time by the preprocessor.
For a run-time check, you want something like:
<Condition Message="Test must be set."><![CDATA[
[%testdir] <> ""
]]></Condition>
http://msdn.microsoft.com/en-us/library/aa368012%28v=VS.85%29.aspx
-----Original Message-----
From: Christoph Goetz [mailto:christoph.go...@giepa.de]
Sent: 18 July 2011 08:45
To: 'General discussion for Windows Installer XML toolset.'
Subject: [WiX-users] Problems with the environment variable
Sorry....
-----Ursprüngliche Nachricht-----
Von: Christoph Goetz [mailto:christoph.go...@giepa.de]
Gesendet: Montag, 18. Juli 2011 09:42
An: 'General discussion for Windows Installer XML toolset.'
Betreff: Re: [WiX-users] DTE OutputFileName vs OutputName - possible wix
bug?
Hi,
my installation should only start if an environment variable is set.
But my installation start every time?
I just want to check if the environment is set and not if it is set to an
specific value.
For example:
<?if $(env.testdir)?>
<Directory Id="TARGETDIR" Name="SourceDir">
<Directory Id="ProgramFiles64Folder">
<Directory Id="INSTALLDIR"
Name="Test "/>
...
<Feature Id="ProductFeature"
Title="test"
Level="1"
...
<?else?>
<?error Test must be set!?>
<?endif?>
Christoph
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