Hi Ben.
For the CMakeVMMakerSqueak, these names are in a Trait TCPlatformConfigForSqueak
A configuration is reponsible for providing it's directories/etc.
Changing those will be as easy as modifying a method in the Trait:
dirMacOSX32x86 ^'cmake_build.macosx32x86'
We can address this during a late refactoring pass after initial release.
I do agree with your ideas.
cheers.
tty