[CMake] How to list user-definable CMake variables

[Michael Wild]

On 28. Sep, 2010, at 10:12 , Marcel Loose wrote:

> 
> On 28. Sep, 2010, at 9:33 , Marcel Loose wrote:
> 
>>> Hi all,
>>> 
>>> I was wondering how I could generate a list of user-definable CMake
>>> variables. This list, with a brief help per variable, would be
> *very*
>>> useful for the end-user. It's a bit like the well-known "configure
>>> --help" which gives you a overview of all variables that can be set.
>>> 
>>> Best regards,
>>> Marcel Loose.
>> 
>> Is "cmake -LAH" what you want?
>> 
>> Michael
> 
> Hi Michael,
> 
> Well this is sort of what I was looking for, though I was hoping that it
> would be possible to list any useful variable *before* running CMake.
> 
> Is there some kind of hook, e.g. 'cmake --custom-help', that can be used
> to display project-specific help. The help text should be provided by
> the developer, of course.
> 
> Best regards,
> Marcel Loose.

Not that I'd know of. I also think that this would be quite difficult to implement. You're far better off writing an extensive README or INSTALL document.

Michael

--
There is always a well-known solution to every human problem -- neat, plausible, and wrong.
H. L. Mencken

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