Context switching between working on work codebase, Chromium code base, and various third party C++ codebases is a headache as much for their basic differences in coding style (use of whitespace, capitalization, naming, etc.) as for their wildly varying build/metabuild processes.

And of course, each implements and then extensively uses their own library features like reference-counted pointers, managed GC pointers, collection data structures, iterator-like abstractions, etc.

Boost? I'm sure there's good reason for the -- sui generis -- build system. Always been too underwater to spend much time wondering about why that's a yak I'm shaving.