Rosetta 3.3 and gcc version incompatibility

I was trying to install Rosetta 3.3 on my current system but kept on getting:

``KeyError: "Unknown version number 4.6 for compiler 'gcc'"

Obviously I'm not going to roll back my gcc somehow to get it to install. The solution is pretty damned simple.
From http://www.rosettacommons.org/content/invalid-value-option-cxx#comment-3211

OK, try editing the line of tools/build/options.settings that says:
"gcc" : [ "3.3", "3.4", "4.0", "4.1", "4.2", "4.3","4.4","4.5", "*" ],
to instead have 4.6 as well:
"gcc" : [ "3.3", "3.4", "4.0", "4.1", "4.2", "4.3","4.4","4.5", "4.6", "*" ],

Success! Almost...
then there was:

collect2: ld returned 1 exit status
scons: *** [build/src/debug/linux/3.0/64/x86/gcc/libutility.so] Error 1
scons: building terminated because of errors.

which required me to install zlib1g-dev.