[CMake] Adding cross-compiler support to CMake ...

[Michael Casadevall]

Begin forwarded message:

> From: Michael Casadevall <sonicmctails at aol.com>
> Date: September 7, 2006 5:38:14 PM EDT
> To: "William A. Hoffman" <billlist at nycap.rr.com>
> Subject: Re: [CMake] Adding cross-compiler support to CMake ...
>
> I would disagree with that. Your using a cross-compiler, but CMake  
> doesn't know its cross-compiling, and doesn't know how to handle  
> exceptions for a cross-compiler. I cross-compile a LOT of packages  
> - autotools packages are the easiest to compile in general, after  
> you give it all the values for information it doesn't have.
>
> Anyway, I'm planning my angle of attack in programming right now on  
> how to do this, but not knowing CMake's guts is making this a  
> little harder.
> Michael
>
> On Sep 7, 2006, at 5:30 PM, William A. Hoffman wrote:
>
>> At 04:36 PM 9/7/2006, Brad King wrote:
>>> Michael Casadevall wrote:
>>>> I wish to add support for cross-compiling to CMake since its a  
>>>> tool I
>>>> use a lot, and I can finally kill the last few of my projects using
>>>> autotools. To my knowledge, autotools is the only system that  
>>>> provides
>>>> cross-compiling, and poorly at that, and I've been thinking on  
>>>> ways to
>>>> add it to CMake. Here's what I got so far:
>>>
>>> This is one of the oldest feature requests:
>>>
>>> http://www.cmake.org/Bug/bug.php?op=show&bugid=14
>>>
>>> You may wish to log into the bug tracker, add yourself as a CC  
>>> for this
>>> bug, and add comments to it.
>>>
>>> We will eventually get to adding cross-compiling support, and it  
>>> would
>>> be great to have some discussion available in the bug report for  
>>> reference.
>>
>> All said about cross compiling, there are folks doing cross compiling
>> with CMake.   CMake does not really help in any way, but it can be  
>> done.
>> All of the try-run stuff can be stopped by setting the correct  
>> cache variables
>> before cmake is run.   So, it should be not that hard to create a  
>> cache file
>> that has all the cmake variables needed for a cross compiler.    
>> The tricky part
>> would be projects that build code generation stuff during the  
>> build process.
>> This would have to be done in a separate build right now, but with  
>> correctly
>> written CMakeLists.txt files you should be able to pre-load the  
>> path to those
>> locally built programs as well.   At the end of the day a cross  
>> compiler is
>> just a compiler run from makefiles just like the ones used by  
>> cmake for non-cross
>> compile builds.  So, you could say that CMake poorly supports  
>> cross compiling today.
>>
>>
>> -Bill
>>
>> _______________________________________________
>> CMake mailing list
>> CMake at cmake.org
>> http://www.cmake.org/mailman/listinfo/cmake
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://public.kitware.com/pipermail/cmake/attachments/20060907/7c6cb6dd/attachment-0001.html