[Scons-users] Out of project tree builds

[H. S. Teoh]

On Mon, Oct 29, 2012 at 09:40:45PM -0400, Francis Bolduc wrote:

> > I personally don't find much need for this sort of thing (and prefer

> > the fact that SCons makes building multiple variants easier), but I

> > can imagine that some people would.

> 

> So do I, but things become tricky if you use the Install() builder.

> 

> It makes sense to allow the user to specify the target installation

> directory on the command line with AddOption().

> 

> But if the target directory is not under SConstruct, files will not be

> copied... or at least that was my experience. Maybe I'm missing

> something.

[...]

I work around that by using an Alias target:

	installdir = '/opt/usr'
	env.Alias('install', installdir)

Then run 'scons install'. Perhaps a Default target might work too?

In any case, this has the interesting behaviour that only targets that
actually end up in installdir will be built, which is usually not a
problem unless you were expecting everything to be built. But I usually
build in-tree first, then install elsewhere, so this works relatively
well for me.


T

-- 
Тише едешь, дальше будешь.