[Scons-users] Question about scons

[William Blevins]

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On Tue, Feb 9, 2016 at 11:16 PM, Guillaume Anciaux <
guillaume.anciaux at epfl.ch> wrote:

> Hello,
>
> thank you for your answer. Indeed, I had a look at the Tools on my debian.
> When I look at the list from following your link below, what I see is
> mainly build/compilers but no 'configure' variable for projects like:
>
> - petsc
> - blas
> - lapack
> - mumps
> - fftw
> - boost
> - gsl
> - MPI (openmpi, mpich, mpich2, etc...)
>
> I do not say that these are complicated. Most of them are not (PETSc is a
> counter-example...).  But even searching on the web (very quickly I admit),
> I cannot find scons tools. I can tell you that the same exercise would be
> successful in CMake.
>

If I understand your what you are looking for correctly, please see the
following references:
Where to put custom tools (until they are released in SCons proper):
http://www.scons.org/doc/HTML/scons-user.html#idp1378972020
Basics on making tools: https://bitbucket.org/scons/scons/wiki/ToolsForFools


>
> What I mean is that a central place for storing these scripts (in CMake
> they are part of the main release) would be extremely valuable to give the
> feeling that everything is easy and just focus on your own files and not
> the libraries and includes of others.
>
> This is what I would motivate by a 'central repo'. Again I am very new, so
> don't judge me badly if I say wrong things.
>
> Thanks again for your answer.
>
> Best.
>
> Guillaume
>
>
>
> On 02/09/2016 07:18 PM, Gary Granger wrote:
>
> Hello Guillaume,
>
> I have not used cmake, but I took a quick look at the CMake find_package
> documentation along with some of the Find<package>.cmake modules.  They
> look like SCons "tools" to me.  A SCons tool is a python function, module,
> or package which can be applied to an Environment to add construction
> variables and methods (Builders).  The core SCons distribution already
> contains a repository of some important tools, you can see them under the
> SCons package in the SCons/Tool directory.  Some tools are quite simple to
> write, some are more complicated.  My impression is that the core tools are
> mostly compilers, but there are many more tools developed externally, some
> of which are listed on this wiki page:
>
> https://bitbucket.org/scons/scons/wiki/ToolsIndex
>
> Those are the closest things I know of to a repository for tools.  Usually
> if I need a new tool, I just search for it on the web or write it.  Custom
> tools can be integrated with your source tree or installed alongside SCons,
> as explained in the SCons documentation.
>
> It could be an interesting exercise to parse or convert (ie "export")  the
> CMake package modules for SCons, but I suspect there are already SCons
> tools for many of them.  If you can't find a particular tool you need, then
> I suppose this is a good place to ask about it.  If CMake has a package
> that SCons doesn't, it may not be hard to convert the CMake package
> manually.  SCons already supports parsing of pkg-config scripts.
>
> HTH,
> Gary
>
> On 02/09/2016 09:10 AM, Guillaume Anciaux wrote:
>
> Dear Scons developers and users,
>
> I am new to the topic, and find it great that the Python language is the
> support of a build tool.
>
> However, I used to manage a large project with CMake and was ready to
> change from the crappy language that CMake is.
>
> However something that is extremely nice is the database of
> 'find_package' routines that helps in finding default software.
>
> I searched a little but found no such thing for Scons ? am I right ?
>
> If so, is it a naive though to:
>
> - start such a repo ?
> - write an exporter from the CMake format to benefit from the long list
> of packages already supported ?
>
> Thanks a lot for this nice project,
>
> thanks for your answers !
>
>
>
>
>
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