[CMake] Copying cmake generated files to another machine

[steve naroff]

On Dec 7, 2009, at 7:58 AM, Pau Garcia i Quiles wrote:

> On Mon, Dec 7, 2009 at 1:04 PM, steve naroff <snaroff at apple.com>  
> wrote:
>> Thanks for your comments Oscar.
>>
>> Our current thinking is to post process the cmake generated files  
>> and remove
>> all the absolute paths (since the project files are simply text).  
>> Since
>> cmake is a black box to me (and I am unfamiliar with it's generated  
>> 'code'),
>> it's unclear if this a 'good' idea? Or will I bump into other  
>> gotcha's?
>>
>> Any advice is appreciated...you have a lot more experience with  
>> this than I
>> do!
>
> Steve, if that was a good idea, CMake would be doing that by default
> instead of using absolute paths, don't you think?
>

Sure, but any cross platform tool has the constraint that it needs to  
deal with the "lowest common denominator" (which might be difficult).

As a result, it could be the case that using relative paths for Visual  
Studio (just to take an example) might be simpler than using relative  
paths when generating Unix 'make' files.

> As Eric pointed out, you must add CMake to your compiler build chain.
> It's one more tool (and with no third-party dependencies), like the C
> preprocessor, the C compiler and the linker. We did that at work and
> it's no big deal, people are so happy with the pro's of CMake over our
> former buildsystem (Visual C++ projects for Windows and Makefiles for
> Unix, which required twice the amount of maintainance work), they are
> not looking back.
>

As I said in my initial post, we love CMake for development (since  
llvm/clang are cross platform). Developers understand the benefits of  
'cmake'. Unfortunately, developers aren't the only clients building  
llvm/clang.

In any event, maybe adding CMake to our build chain isn't such a big  
deal.

Just trying to get the collective wisdom of this group before we make  
any changes.

Thanks for your input,

snaroff

> -- 
> Pau Garcia i Quiles
> http://www.elpauer.org
> (Due to my workload, I may need 10 days to answer)