[Scons-users] Propagating build failure to independent project

[Dirk Bächle]

Hi Björn,

I'm not quite sure how "project references" work exactly in Eclipse CDT, 
but to me it seems to be very clear that your executable definitely 
depends on your library.
So, from the SCons point of view, it would be better to have them both 
in a combined SConstruct, such that SCons always sees and constructs the 
full dependency tree (library + executable).
In Eclipse you could then call either "scons your_lib_name" if you just 
want to update the library, or simply "scons" to rebuilt everything that 
has changed.

This should make special "after-build-failure" actions superfluous, 
because the "scons" build will break automatically when the library 
can't be updated.

Best regards,

Dirk

On 05.08.2013 16:20, Björn Pollex wrote:

> Hello SCons-community!

>

> I am currently trying to find a solution for the following problem. 

> Suppose we have to projects, a library and an executable that links 

> this library. They are independent SCons projects, so I first build 

> the library, and then the executable. Now I change some internal 

> implementation detail of the library, and the next build will fail. 

> The problem is, since I didn't do a clean build (expensive), the old 

> library binary is still in place, and the next build of the executable 

> will build against it!

>

> In reality, I am working with these two projects in Eclipse CDT. I 

> have a project reference configured from the executable to the 

> library. Now when I work on the library and then want to build both 

> projects in one step, I will often run into the scenario described 

> above. Since Eclipse does not currently provide any way around that, I 

> am trying to implement a solution in SCons.

>

> The problem is that there seems to be no way in SCons to execute a 

> specific instruction after the build of the library has failed, 

> because after failure, SCons will not update any downstream targets 

> (this is also true for Requires()).

>

> Can anyone suggest a solution here?

>

> Regards,

>

>     Björn Pollex

>

>

> _______________________________________________

> Scons-users mailing list

> Scons-users at scons.org

> http://four.pairlist.net/mailman/listinfo/scons-users


-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://four.pairlist.net/pipermail/scons-users/attachments/20130805/9ec2a240/attachment.htm