I meant to say MyApp.variables.wxi, not MyApp.variables.wxs. Sorry.
I have been working on this too long, my eyes are crossed, and I am
making more type-o's. I'm trying to sanitize my problem and keep it
concise and problem specific.
When I run the following (all one-line)(run from bash cygwin shell):
candle.exe
MyApp.wxs
MyApp.fragment.wxs
-ext WixUIExtension.dll
Results in the error:
MyApp.variables.wxi(12) : error CNDL0250 : MyVar must be defined
But the following (all one-line) (run from bash cygwin shell)
candle.exe
MyApp.wxs
MyApp.fragment.wxs
-ext WixUIExtension.dll
-dMyVar="${ExeName}"
It works.
The same is true even if I use cmd shell and 'set ExeName='foo.exe' and
then run candle.exe
The lines in MyApp.variables.wxi
<?ifdef $(env.ExeName) ?>
<?define MyVar="$(env.ExeName)" ?>
<?endif?>
<?ifndef MyVar ?>
<?error MyVar must be defined ?>
<?endif?>
I'm not sure what your last line means.
"...needs to specify the wix namespace..."
I will try to explain.
In my each wxs file, just below line 1
(the line: <?xml version="1.0" encoding="utf-8"? )
I have the following line:
<?include MyApp.variables.wxi ?>
In the main MyApp.wxs file, I pull in the namespace in my fragment
(generate by Paraffin.exe) MyApp.fragment.wxs
<Feature Id='Complete' Level='1'>
<ComponentGroupRef Id='group_MyApp'/>
</Feature>
Does that help?
On Fri, 2009-07-24 at 18:17 -0700, Blair wrote:
> Which error are you getting now? ("MyVar must be defined" or "Undefined
> preprocessor variable '$(var.MyVar)'")
>
> Sorry to ask the obvious, but you appear to be including MyApp.variables.wxs
> but you mention creating a wxi file. Is the wxi file named
> MyApp.variables.wxs? Most of the time wxi files end in ".wxi" not ".wxs".
>
> Also, IIRC, the Include (since it is the root element) needs to specify the
> wix namespace (not shown in your example).
>
> -----Original Message-----
> From: jo...@msli.com [mailto:jo...@msli.com]
> Sent: Friday, July 24, 2009 4:14 PM
> To: General discussion for Windows Installer XML toolset.
> Subject: Re: [WiX-users] correctly define preprocessor var in wxs?
>
> I appreciate all the help, and I am sorry for not getting.
> Based on what I understand your advice to be,
> I have moved the preprocessor variables to a wxi,
> <?xml version="1.0" encoding="utf-8"?>
> <Include>
> <?ifdef $(env.ExeName) ?>
> <?define MyVar="$(env.ExeName)" ?>
> <?endif?>
> <?ifndef MyVar ?>
> <?error MyVar must be defined ?>
> <?endif?>
> </Include>
>
> And the second line of each wxs file now contains an include statement:
> <?include MyApp.variables.wxs ?>
>
> But I still get the same result.
>
> What seems to work is calling candle.exe using the environment
> variables:
> candle.exe MyApp.wxs MyApp.fragment.wxs -ext WixUIExtension.dll -d
> -dMyVar="${ExeName}"
>
> But I thought this is supposed to also work:
> candle.exe MyApp.wxs MyApp.fragment.wxs -ext WixUIExtension.dll
>
> On Fri, 2009-07-24 at 13:41 -0700, Blair wrote:
> > Is your component in main.wxs or in some other file. If it is in main.wxs,
> > is it above or below your definition?
> >
> > <?define?> in wxs works like #define in cpp: you have to define it before
> > you use it, and the definition exists for the file it is in (unless
> included
> > in other files). That is why .wxi files exist (see the help for
> > <?include?>).
> >
> > -----Original Message-----
> > From: jo...@msli.com [mailto:jo...@msli.com]
> > Sent: Friday, July 24, 2009 12:19 PM
> > To: General discussion for Windows Installer XML toolset.
> > Subject: Re: [WiX-users] correctly define preprocessor var in wxs?
> >
> > In my main wxs, I have
> >
> > <?define MyVar="foo.exe" ?>
> > <?ifndef MyVar ?>
> > <?error MyVar must be defined ?>
> > <?endif?>
> >
> > which does cause candle to fail if I comment out the define.
> >
> > And in a Component, I have
> > Target="[INSTALLDIR]$(var.MyVar)"
> >
> > If I run candle with out:
> > -dMyVar="foo.exe"
> > I get the error:
> > Undefined preprocessor variable '$(var.MyVar)'.
> >
> > If I run candle with:
> > -dMyVar="foo.exe"
> > Candle succeeds.
> >
> > What is my malfunction?
> >
> > On Fri, 2009-07-24 at 20:00 +0100, Russell Hind wrote:
> > > To define pre-processor variables (equivelant to -d passed to
> > > Candle.exe) use
> > >
> > > <?define MyVar="foo.exe" ?>
> > >
> > > Cheers
> > >
> > > Russell
> > >
> > > On 24 Jul 2009, at 19:47, jo...@msli.com wrote:
> > >
> > > > I have been struggling to find one simple example of defining a
> > > > preprocessor variable in the wxs file.
> > > >
> > > > Currently, If I Append this to my candle command line:
> > > > -dMyVar='foo.exe'
> > > > then references to $(var.MyVar) in wxs work.
> > > > But no matter how I define MyVar in the main wxs, they are not found.
> > > >
> > > > Why does this not work, defined in my main project wxs?
> > > > <WixVariable Id='MyVar' Value='foo.exe' />
> > > >
> > > >
> > > > Until that works, I can't hope to reach my goal of using an
> > > > environment
> > > > variable (ExeName):
> > > > <?ifdef $(env.ExeName) ?>
> > > > <WixVariable Id='MyVar' Value="$(env.ExeName)" />
> > > > <?else?>
> > > > <WixVariable Id='MyVar' Value='foo.exe' />
> > > > <?endif?>
> > > >
> > > >
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