[CMake] Fwd: Bug ? Or I'm doing something wrong ?

John Drescher drescherjm at gmail.com
Mon Mar 22 09:41:00 EDT 2010


On Mon, Mar 22, 2010 at 9:32 AM, Benoit Thomas
<benoit.thomas at gameloft.com> wrote:
> Yes that's what I mean, cmake re-runs from the root directory of the
> project, for every target in my project.
>
> Which means when I do a rebuild all in visual studio, every target in my
> project re-runs the root CMakeLists.txt, which re-build the whole visual
> studio solution. On my quad core, this means 8 cmake run at the same time,
> and they all do the same job.
>
I do not have this on my i7. CMake 2.8.1 appears to be single threaded.
>
> Currently, when I generate a Visual Studio project from cmake, I have to
> manually delete all CMakeLists.txt from every target in order to be able to
> use the rebuild all in Visual Stduio.
>
I definitely do not have that.
>
> So, I was looking for an option to disable it, or override this behavior.
>
> I hope this explain it better (I'm still new to cmake).
>
> Thank you,
> Ben.
>
> On 2010-03-22 04:52, David Cole wrote:
>
> On Fri, Mar 19, 2010 at 5:28 PM, Benoit Thomas <benoit.thomas at gameloft.com>
> wrote:
>>
>> Hello,
>>
>> I have the following directory structure
>>
>>    root
>>      |--- project A
>>      |--- project B
>>
>> Project A & B both have their cmakelists.txt file
>>

I use this and do not see the effect you are describing.

>> Root has a cmakelists.txt file which does add_subdirectory for project A
>> and B
>>
>> When I generate the tree in visual studio, I have a solution with both
>> projects; and both project A & B have their corresponding cmakelists.txt
>> added to the project.
>>
>> However, the command line for the custom build steps on those files refer
>> to root/cmakelists.txt and not project A or B/cmakelists.txt
>>
>> My problem come when I do a rebuild all, both project A & B tries to
>> rebuild both projects and it creates other problems; I have to manually run
>> cmake root in command prompt before continuing the build.
>>
>> My real project is far bigger than what I explain here, but I do not know
>> what I'm doing wrong. Can I override this custom build step ? Or can I
>> simply disable it ?
>>
>> Thank you,
>> Ben.
>>
>
> Regardless of which CMakeLists.txt file you edit, cmake always re-runs from
> the root directory of the project. Is that what you mean?
> Or are you running some custom build steps using add_custom_command that are
> behaving differently than you expect?
>
> HTH,
> David
>
>
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--
John M. Drescher



-- 
John M. Drescher


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