[Scons-users] integrating scons with other (non-scons) projects

[Bill Deegan]

Seems like a library of download and build logic for various third party
components would be useful.

Anyone want to flesh out on the wiki the following:
1 - Method of obtaining the package (wget, git, hg, etc...)
1.2 - Method of detecting update from source (you'd get the meta data and
the source would be some type of Value() node. The decider would have know
how to compare such)
2 - Method of building (configure/make, cmake,...)
3 - Method of identifying the (important) output file(s).  In most cases
this would be the library and one or more header files installed via make
install or equivalent.

It seems very doable, and also needed.

-Bill


On Fri, Jun 8, 2018 at 9:26 AM, Mats Wichmann <mats at wichmann.us> wrote:

> On 06/08/2018 10:18 AM, Managan, Rob via Scons-users wrote:
> > I just wanted to point out this tool which can be used to maintain
> scripts to install libraries for multiple compilers and multiple sets of
> compile options (debug, different MPI,…)
> >
> > I presume you can use a python script to fire this off for the required
> libraries…
> >
> > https://computation.llnl.gov/projects/spack-hpc-package-manager
> >
> >
> > *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
> > Rob Managan
> > WCI/DP Division  LLNL
>
> Sounds nice, until I get to here:
>
> "Spack uses RPATH linking so that each package knows where to find its
> dependencies."
>
> rpath usage gets into trouble in the difference between develop and
> deploy - I may have the built libraries in a build area when I'm testing
> code, and that's going to be the wrong place for a deploy scenario where
> the libraries should be in standard places (y'know, /lib, /opt/lib,
> etc). and vice versa: if I'm testing new versions of libs, I don't want
> the rpaths pointing to standard locations because then I'm not picking
> up the experimental new versions.
>
> And then there's no rpath at all on Windows, so this part of the concept
> is pretty much dead in the water for us.
>
>
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