[Scons-users] Help my build get faster... (was SCons and parts)

[Bill Deegan]

Pico,

You can do this.

env.MyBuilder(Target,Source, ANY_ENV_FLAG=['a','b','c'],
CPPPATH=['z','d','f']
There's no need to clone the environment to have specialized flags for a
given builder or target..


On Tue, Aug 15, 2017 at 12:09 PM, Pico Geyer <picogeyer at gmail.com> wrote:

> It's actually our own builder that we are using in this case, each
> object could have different include paths or options.
> But just like if you had a list of C files to build each with their
> own include paths, wouldn't you need to create a new environment for
> each?
>
> On Tue, Aug 15, 2017 at 5:51 PM, Bill Deegan <bill at baddogconsulting.com>
> wrote:
> > Why do you need a new Environment for each object?
> > Can you paste some code to explain?
> >
> >
> > On Tue, Aug 15, 2017 at 11:34 AM, Pico Geyer <picogeyer at gmail.com>
> wrote:
> >>
> >> Bill,
> >> Sorry for the delay.
> >>
> >> Right of course. I was just hoping for something in scons due to the
> >> number of SConscript files that I have (and laziness :) )
> >> So indeed it was the file I suspected.
> >> I seemed to have further narrowed it down to env.Clone(), since I need
> >> a new environment for each object. And their are roughly 2000 of them.
> >> This seems to take about 4 seconds.
> >> I found this with the combination of print messages (like your
> >> example) and the very useful  line_profiler tool
> >> (https://github.com/rkern/line_profiler)
> >> I could send you the output off list if you're interested.
> >>
> >> Any suggestion on what I can do to improve things?
> >> If there isn't a way to make it faster, I was hoping for a way to
> >> detect early on that I'm not building that component anyway, so I
> >> don't need to process those objects (and therefore do so many
> >> environment clones).
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> >
> >
> >
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