SCons.Defaults

Package SCons :: Module Defaults

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Module SCons.Defaults

SCons.Defaults

Builders and other things for the local site.  Here's where we'll
duplicate the functionality of autoconf until we move it into the
installation procedure or use something like qmconf.

The code that reads the registry to find MSVC components was borrowed
from distutils.msvccompiler.

Classes
`NullCmdGenerator`	This is a callable class that can be used in place of other command generators if you don't want them to do anything.
`Variable_Method_Caller`	A class for finding a construction variable on the stack and calling one of its methods.

Function Summary
	`chmod_func(path, mode)`
	`copy_func(dest, src)`
	`DefaultEnvironment(args, *kw)` Initial public entry point for creating the default construction Environment.
	`delete_func(entry, must_exist)`
	`delete_strfunc(entry, must_exist)`
	`SharedFlagChecker(source, target, env)`
	`SharedObjectEmitter(target, source, env)`
	`StaticObjectEmitter(target, source, env)`
	`touch_func(file)`

Function Details

DefaultEnvironment(*args, **kw)

Initial public entry point for creating the default construction Environment.

After creating the environment, we overwrite our name (DefaultEnvironment) with the _fetch_DefaultEnvironment() function, which more efficiently returns the initialized default construction environment without checking for its existence.

(This function still exists with its _default_check because someone else (cough Script/__init__.py cough) may keep a reference to this function. So we can't use the fully functional idiom of having the name originally be a something that only creates the construction environment and then overwrites the name.)

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