I did my best to exempt some of the bigger aligned blocks from the reformatting
using the /* clang-format off */ and /* clang-format on */ tags. Probably some
that shouldn't have been formatted were anyway; if you encounter them, please
fix.
The clang-format tags were left in on the basis that it's much easier to prune
those out later than to put them back in, and it means that, modulo my custom
version of clang-format, I should be able to run clang-format on the source tree
again without changing anything, now that Pat has fixed the VA_DECL issues.
Support compilation of multiple flavors for the Macintosh:
1. A Carbon port, text only and backwards-compatible with
older versions of the MacOS.
2. A termcap/Unix port for MacOS X only.
3. A Qt port, tiled and MacOS X only.
The flavor can be selected at compile-time by specifying the
appropriate prefix file for the compiler.
