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Previously, we initialised all of the JavaScript event handlers as soon at the DOM was loaded, and then called main() ourselves once the Emscripten runtime was ready. This was slightly dangerous since it depended on none of those event handlers' being called before main(). In practice this was difficult because most of the elements the event handlers were attached to were invisible, but it did limit what event handlers could safely be used. Now, the event handlers are initialised from main(). This makes things work in a sufficiently conventional way that we can just let the Emscripten run-time call main() in its usual way, rather than involving ourselves in the minutiae of Emscripten's startup.
This is the README accompanying the source code to Simon Tatham's puzzle collection. The collection's web site is at <https://www.chiark.greenend.org.uk/~sgtatham/puzzles/>. The puzzle collection is built using CMake <https://cmake.org/>. To compile in the simplest way (on any of Linux, Windows or Mac), run these commands in the source directory: cmake . cmake --build . The manual is provided in Windows Help format for the Windows build; in text format for anyone who needs it; and in HTML for the Mac OS X application and for the web site. It is generated from a Halibut source file (puzzles.but), which is the preferred form for modification. To generate the manual in other formats, rebuild it, or learn about Halibut, visit the Halibut website at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.