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Games with neither presets nor configuration (which may only be the Null Game) have been slightly broken since the introduction of hierarchical preset menus, in that the code to remove the "Type..." menu stopped being called then. My switch to using radio buttons in menus then broke them utterly because it's not possible to set the value of an empty radio group, causing a crash at startup. Fix this by detected when there's no preset menu, removing the item from the menu bar, and setting the variable that's meant to indicate this has been done. The solve button problem was more subtle, in that only the <button> was being hidden and not the <li> containing it, which led to the right border of the menu bar being two pixels thick. Switch to fully removing the <li> from the DOM, like we now do with the presets menu, since that also makes my keyboard handler (in another branch) simpler.
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/>.