When deleting a variable from an OverrideEnvironment, do not throw an exception if...
authorstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Sat, 8 Oct 2005 14:36:33 +0000 (14:36 +0000)
committerstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Sat, 8 Oct 2005 14:36:33 +0000 (14:36 +0000)
commit28c0a793b641e53dc900383db9dca987641069ac
treefb86a117fb409101f5a2ddfef7b81b51bad1dc1c
parent2b9c2b2bc97674b7fba42259ffb94e25eba4b88e
When deleting a variable from an OverrideEnvironment, do not throw an exception if the underlying Environment does not have a variable we deleted.

git-svn-id: http://scons.tigris.org/svn/scons/trunk@1362 fdb21ef1-2011-0410-befe-b5e4ea1792b1
src/CHANGES.txt
src/engine/SCons/Environment.py
src/engine/SCons/EnvironmentTests.py