[Scons-dev] Tool initialization is called twice

[Bill Deegan]

Gary,

I was under the impression (need to check the code), that you could do:
DefaultEnvironment(tools=[]) in SConstruct and it would prevent any tools
from being initialized  and speed SCons startup.

Did I misunderstand?

-Bill


On Wed, May 28, 2014 at 5:40 AM, Gary Oberbrunner <garyo at oberbrunner.com>wrote:

>
>
>
> On Wed, May 28, 2014 at 3:39 AM, anatoly techtonik <techtonik at gmail.com>wrote:
>
>> Hi,
>>
>> I found that SCons calls tool initialization twice for this simple
>> SConstruct:
>>
>>     env = Environment()
>>     env.Program(target='flite', source=[])
>>
>
> Right, this is one of the things I want to address with the toolchain
> revamp.  DefaultEnvironment is constructed before the SConstruct is read,
> and all the default tools are detected there.
>
> Environment() is distinct from DefaultEnvironment(); DefaultEnvironment is
> _only_ used for plain Object(), Program() etc. calls.  This is by design.
>  Environment() does not inherit changes in DefaultEnvironment().
>
> --
> Gary
>
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