This is a modified version of Simon Tatham's portable puzzle
collection.  The rest of this file, after this paragraph, is his own
README.  I forked it not because I think he did anything wrong - quite
the opposite, if anything - but as a place to put my changes, both
until he picks up any he wants and for any he doesn't want.  (I expect
the latter to be commoner; at this writing I don't know whether he
wants *any* of my changes.)  I have changed it because (a) I consider
the ./configure paradigm catastrophically broken, so I added my own
build infrastructure, and (b) his Unix version uses GTK, which as far
as I know I don't have.  So I built (well, at this writing, am
building) an Xlib front end.

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/>.