I stumbled upon this question because I was trying to fix a syntax bug I found in some code. Would you believe this code snippet below compiled just fine? <?elif ?> is not a valid preprocessor conditional statement. Is this a bug in the compiler?
<?ifdef FOO ?> <?define define value=1 ?> <?elif $(var.BAR) ?> <?define define value=2 ?> <?else ?> <?define define value=3 ?> <?endif ?> -----Original Message----- From: Sascha Beaumont [mailto:sascha.beaum...@gmail.com] Sent: Thursday, December 17, 2009 9:17 PM To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] undefined variables The code will fail to compile with the following error: Undefined preprocessor variable '$(var.IDoNotExist)'. <?define Iexist ?> <?if $(var.Iexist) ?><?endif?> <!-- true --> <?ifdef $(var.Iexist) ?><?endif?> <!-- true --> <?ifndef $(var.Iexist) ?><?endif?> <!-- false --> <?if $(var.IDoNotExist) ?><?endif?> <!-- won't compile --> <?ifdef $(var.IDoNotExist) ?><?endif?> <!-- false --> <?ifndef $(var.IDoNotExist) ?><?endif?> <!-- true --> Sascha On Fri, Dec 18, 2009 at 3:22 PM, Steve Lessard <sless...@microsoft.com> wrote: > Is it me or is the preprocessor example at > http://wix.sourceforge.net/manual-wix3/preprocessor.htm misleading? > > > > It contains this snippet of code: > > > > <?define IExist ?> > > <?if $(var.Iexist) ?><?endif?> <!-- true --> > > Doesn't this falsely imply that this example should also work? > > > > <?define IExist ?> > > <?if $(var.IDoNotExist) ?><?endif?> <!-- false --> > > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast and easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > WiX-users mailing list > WiX-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wix-users > ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
