Regarding Clutter being written in C, it's actually possible to do object-oriented design in C. Gtk+ is OO in C. It's a tiny bit more tedious than in C++, but it works. I'm working on a project now that would be much easier in C++ (and a language with functions as objects would be even easier than that), but it needs to run on an embedded system with limited CPU and memory bandwidth as quickly as possible, so C it is.
IIRC, another reason C++ was avoided in the earlier Linux days was that there wasn't an LGPL-compatible C++ standard library.
IIRC, another reason C++ was avoided in the earlier Linux days was that there wasn't an LGPL-compatible C++ standard library.
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