Make ${,UN}CHANGED_{SOURCES,TARGETS} into future reserved construction
authorstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Sun, 7 Dec 2008 18:04:59 +0000 (18:04 +0000)
committerstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Sun, 7 Dec 2008 18:04:59 +0000 (18:04 +0000)
commitced69f064c346877f8ee26acce5171882fa1fbf1
treef666a8f466995e10af0195ac50db1358cdfb432a
parent043441776e02b99fe5a3079755ac964a0988c016
Make ${,UN}CHANGED_{SOURCES,TARGETS} into future reserved construction
variable names, with an appropriate warning.

git-svn-id: http://scons.tigris.org/svn/scons/trunk@3811 fdb21ef1-2011-0410-befe-b5e4ea1792b1
src/CHANGES.txt
src/RELEASE.txt
src/engine/SCons/Environment.py
src/engine/SCons/EnvironmentTests.py
src/engine/SCons/Script/Main.py
src/engine/SCons/Warnings.py