[Scons-users] Librarian tool

[Kenny, Jason L]

I think this could be useful. I still think if we could get an idea that I did add to parts in which you can define a tool chain on the command line would be a great help. More often than not for me the SCons default tool chain logic is not want I want. I do know what it should look for, and being able to state this can help setup correct toolchains without garbage added to the environment that might mess up some other tool or cause a small delay in start up time.

Jason

-----Original Message-----
From: scons-users-bounces at scons.org [mailto:scons-users-bounces at scons.org] On Behalf Of Gary Oberbrunner
Sent: Tuesday, January 21, 2014 12:46 PM
To: SCons users mailing list
Subject: Re: [Scons-users] Librarian tool

On Tue, Jan 21, 2014 at 1:16 PM, Russel Winder <russel at winder.org.uk> wrote:

> On Tue, 2014-01-21 at 17:34 +0000, Kenny, Jason L wrote:

>> I personally have thought of this myself. I think this currently is 

>> viewed as a tool in SCons. I personally thought of having a library 

>> directory in Parts as I thought this would help separate stuff better.

>> I have not done this myself. The other point of view here might be 

>> that this is a what the configure stuff should do, as this is a 

>> common way it is used in a classic makefile way.

>>

>> I personally like the idea of being able to apply to the environment 

>> a tool and or library and have it configured correctly.

>

> I have to admit I think the core problem is that SCons assumes you are 

> using C or C++ (with Fortran tacked on) and that you will use the 

> default set up - which is basically a hardwiring of a subset of the 

> tools. In effect the other tools are a hack add on.

>

> I have given up on trying to have a separate D tooling and am grafting 

> in D support more along the lines of C++ and Fortran. However this is 

> clearly a fundamentally failing strategy as the smart_linker function 

> will become so complicated it will fail under its own weight!


I've actually been working on a core enhancement, a SwitchAction which is like a ListAction but only executes one of the listed actions based on a predicate. I think if we replaced smart_linker with this, it would be extensible in the ways you need, or at least it's a part of the solution to that problem.

--
Gary
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