On Mon, Jan 11, 2010 at 3:51 PM, Chauhan, Vikas
<vikas.chau...@anritsu.com> wrote:
>> > Actually, when I used the macro I found that though this macro gives
>> > a
>> > useful functionality it is not exactly what I wanted.
>> >
>> > What I want to do can be illustrated the following example:
>> > I have a main project/dir - projectSystem
>> > I have three component/dir - projectcomponent1, projectcomponent2,
>> > projectcomponent3.
>> >
>> > Now on windows from the directory where the cmake generated files
> are
>> > present, at present I issue a command :
>> > cmake --build PATH_TO_PROJECTSYSTEM
>> > This builds the projectSystem alongwith projectComponent1,
>> > projectComponent2 & projectComponent3.
>> >
>> > Now, I want to do two things on command window(from the dir where
>> > cmake
>> > build files are generated):
>> > 1. Query the list of sub-targets(components) available. In this case
>> > the
>> > result is a list
>> > projectComponent1
>> > projectComponent2
>> > projectComponent3
>> > 2. Now based on the list in 1, optionally build any component. For
>> > example issue a command:
>> >
>> > cmake --build projectComponent1
>> >
>> > Can we achieve this? Or is it asking for too much :)
>> >
>> > Thanks,
>> > Vikas
>>
>> I'm new to CMake too, but it looks like you could do what you want
> with the
>> option() directive.
>>
>> So I would have in my CMakeLists.txt something like:
>>
>> option(ProjectComponent1 "Builds the first project component" OFF)
>> etc.
>>
>> And later on:
>> if(ProjectComponent1)
>> add_subdirectory(${ProjectComponent1_DIR})
>> endif(ProjectComponent1)
>> etc.
>>
>> and then in ccmake set the option to ON when you want to build with
> it. I'd be
>> surprised if there wasn't a way to define separate make targets
> somewhere
>> instead though, so you could do "make projectComponent1", but I'm not
> sure
>> about how to do that.
>
> I understand what you mean and it is similar to what the macro suggested
> by Alex does.
> However, I do not want a developer to have a need to change setting in
> the cmake GUI for what I need.
>
> What I want is that:
> 1. the user should be able to see a list of components & sub-components,
> using a command from the cmd window from the location where the cmake
> GUI has generated the build files.
> 2. the user should be able to choose a sub-component to build without
> asking to build the whole component. Also, I do not want to be
> generating build files every time I choose to build a different
> sub-component.
>
> Is this possible?
>
> Please note that I am on windows. I guess this is easily possible on
> Linux. As make allows you to query a list of targets & can build
> specific targets as well. Please correct me if I am wrong.
>
The options method probably solves this the best.
John
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