Enhance OverrideEnvironment, and rename the base class to an enhanced and maybe-even...
authorstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Wed, 29 Dec 2004 16:26:58 +0000 (16:26 +0000)
committerstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Wed, 29 Dec 2004 16:26:58 +0000 (16:26 +0000)
commit69b34327e13b37afb4ee7a2a48781b700639215c
treeb5a11d8944eca035fdedf45dcb8de3af4108245a
parent1a7f01f8194d2522d439ebed6b6de6825573b095
Enhance OverrideEnvironment, and rename the base class to an enhanced and maybe-even-useful SubstitutionEnvironment, to eliminate copying of construction environment variables.

git-svn-id: http://scons.tigris.org/svn/scons/trunk@1195 fdb21ef1-2011-0410-befe-b5e4ea1792b1
src/engine/SCons/Action.py
src/engine/SCons/ActionTests.py
src/engine/SCons/Environment.py
src/engine/SCons/EnvironmentTests.py
src/engine/SCons/Executor.py
src/engine/SCons/Options/OptionsTests.py
src/engine/SCons/Scanner/Prog.py
src/engine/SCons/Util.py
src/engine/SCons/UtilTests.py