[CMake] Weird behaviour of functions with list arguments

[Johannes Zarl]

On 01/18/2011 at 20:51, Alexander Neundorf <a.neundorf-work at gmx.net> wrote: 
> On Saturday 11 December 2010, Johannes Zarl wrote:
>> So ARGV0 is not the same as the first argument of ARGV. Why? Is it that
>> the ARGV and ARGN lists get flattened, but the ARGVx are assigned before
>> that?
>>
>> How can I safely access the values of ARGN, if they might contain lists?
> 
> Do I understand correctly that you want to pass two lists of things to a 
> macro/function ?
> To do this, you have to separate them with keywords.
> 
> Since version 2.8.3 (or was it 2.8.2 ?) CMake comes with the module 
> CMakeParseArguments.cmake which helps with evaluating such lists of 
> arguments. There you can find also documentation.

It turned out that the thing I wanted to do is not quite possible. 
AFAIK CMakeParseArguments can't handle keywords that appear more than once.
My basic idea for a workaround was to use one keyword with several 
list-arguments and have CMakeParseArguments return a list of lists for that
keyword. 

In the end, I did find another solution, though...

Cheers,
  Johannes


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