[CMake] nested replacement with @@

[Clinton Stimpson]

Another workaround is to make an intermediate variable in the CMakeLists.txt 
file and use this intermediate variable from the .in file.  That elminates the 
nested @@'s.

Clint

On Wednesday, April 10, 2013 07:51:03 PM Eric Clark wrote:
> Nico,
> 
> I had this same problem at one point in time, but was able to change it to
> the ${...} syntax which works beautifully. I know that you cannot use this
> syntax, but I will tell you that I did find a work-around for the nested
> @...@ syntax. The workaround is to run configure_file on the file twice.
> The nested @...@ symbols will always be replaced from the inside out which
> is the behavior that you want, you just have to run configure_file on the
> file for as many nests that you have. If the deepest nest you have is two
> nests, then you only need to run configure_file twice. I know this is kind
> of a kludge to fix it, but it does work from my experience...
> 
> Hope this helps...
> Eric
> 
> > -----Original Message-----
> > From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On
> > Behalf Of Nico Schlömer
> > Sent: Wednesday, April 10, 2013 12:55 PM
> > To: cmake
> > Subject: [CMake] nested replacement with @@
> > 
> > Hi all,
> > 
> > in a ProjectContfigTemplate.cmake.in file, I'd like to have variables such
> > as ${${PROJECT_NAME}_VERSION}. In ${}-syntax, the nesting is recognized
> > properly, and this string would be replaced by, e.g., "2.1".
> > 
> > I know need to have ${}-variables in the output file, so I tried to switch
> > to the @-syntax. Replacing the above line by
> > 
> > @@PROJECT_NAME at _VERSION@
> > 
> > doesn't work however: The output file contains
> > 
> > @Myproject_VERSION@
> > 
> > i.e., only the inner variable was replaced.
> > 
> > How to fix this?
> > 
> > Cheers,
> > Nico
> > --
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-- 
Clinton Stimpson
Elemental Technologies, Inc
Computational Simulation Software, LLC
www.csimsoft.com