[Scons-dev] SConstruct processing order

[anatoly techtonik]

Hello,

I am reading http://scons.org/wiki/SconsProcessOverview containing
description of how SCons processes SConstruct. I cite it here:

Read SConstruct as a Python script:
      # Default Environment object is created.
      # Tools do their checks and modify the Environment object.
      # Regular Python code is executed as usual.
      # SConscript() calls cause referenced SConscript files to be
      #   read/executed immediately.
      # Methods of Environment object are used to update the dependency
      #   tree and manipulate SCons state.

Can anybody confirm that it works exactly as described?
The question I ask is because SCons tries detecting Visual Studio on
Windows even if I don't use C++ compiler and SConstruct is empty.

Should the Tools do their checks after they are actually used in dependency
tree?
-- 
anatoly t.
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