[CMake] How to start CMake from scratch

[Christian Arnault]

Thanks to all who gave me hints and recipes to use CMake. And this 
works. Great!

Christian

Le 20/04/2012 13:41, Petr Kmoch a écrit :
> I never used --build myself, but my guess is you can't generate and
> build the project in a single step. I'd try the following (on a blank
> setup):
>
> cd test/B/build
> cmake ..
> cmake --build .
>
> When running cmake from the command line to generate a buildsystem,
> the source directory (where CMakeLists.txt is looked for) is specified
> by the argument and the build directory (into which the buildsystem is
> generated) is the one from which cmake is run.
>
> Hope I've understood your question.
>
> Petr
>
> On Fri, Apr 20, 2012 at 11:52 AM, Christian Arnault
> <arnault at lal.in2p3.fr>  wrote:
>> Hi
>>
>> [I am on windows]
>>
>> If I use cmake-gui to build my project, it starts asking me for the build
>> directory. Which is OK!
>>
>> (my project is named "B", it stands in "test/B", where there is a
>> "test/B/CMakeLists.txt" and I want to build into "test/B/build")
>>
>> Now, if I use command interface CMake as follows (with an empty build
>> directory):
>>
>>>   cd test
>>>   cmake B --build B\build
>> CMake Error: The source directory "C:/Arnault/CMT2/test/B/build" does not
>> appear to contain CMakeLists.txt.
>> Specify --help for usage, or press the help button on the CMake GUI.
>>
>>
>> If I first run cmake-gui, and specify the build directory, it's OK and it
>> properly populates the cache.
>>
>> if now, I redo (command line but with a build directory already populated) :
>>
>>>   cmake B --build B\build
>>
>>
>> it's all ok now!!
>>
>> Question: How to start a build from scratch, using the command line, and
>> specifying a build out-the-source ?
>>
>> Thanks a lot for your help...
>>
>> Cheers
>> Christian
>>
>> --
>> --------------------------------------------
>> | Christian Arnault                        |
>> | LAL Bat 200 pièce 03a                    |
>> | 91405 Orsay CEDEX                        |
>> | phone   : (33) 1 64 46 84 24             |
>> | gsm     : (33) 6 77 27 62 30             |
>> | fax     : (33) 1 69 07 94 04             |
>> | e-mail  : christian.arnault at lal.in2p3.fr |
>> --------------------------------------------
>>
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>>
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>
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>
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>
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>
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-- 
--------------------------------------------
| Christian Arnault                        |
| LAL Bat 200 pièce 03a                    |
| 91405 Orsay CEDEX                        |
| phone   : (33) 1 64 46 84 24             |
| gsm     : (33) 6 77 27 62 30             |
| fax     : (33) 1 69 07 94 04             |
| e-mail  : christian.arnault at lal.in2p3.fr |
--------------------------------------------