BSDGames/INSTALL

Installation instructions
=========================

Packaging
=========

If packaging bsd-games or bsd-games-non-free for a Linux distribution,
please read the PACKAGING file for further information after this one.
Others who wish to install it under a packaging system, or rebuild it
automatically and without interactive configuration, may also find
this file useful.

Non-free games
==============

These installation instructions apply to both bsd-games and
bsd-games-non-free.  bsd-games-non-free contains rogue, which it seems
cannot be sold for profit, and hack, for which porting but not
gameplay changes may be made: the rest of the games are under the
standard BSD distribution conditions, or very similar ones (phantasia
is public domain, i.e. not copyrighted).  As of version 2.2 and later,
the bsd-games-non-free package unpacks conventionally into a directory
of its own.  It can be built separately from bsd-games, or in the same
source directory: to do the latter, move those files and directories
that are in bsd-games-non-free but not bsd-games into the
bsd-games-VERSION directory before building.  If you are building
bsd-games, cd to boggle and decide if you want -DNEW_STYLE or not --
see boggle/README.linux for more information.  If you are in a hurry,
don't worry about it ... it really is more of an aesthetic thing.

Prerequisites
=============

You need gcc (the C compiler only - other languages not needed), libc5
(version 5.4.5 or later) or libc6, and ncurses (any reasonably recent
version).  Older versions of ncurses may work (but are much more
buggy), and BSD curses / termcap just might work (but is obsolete),
but these are completely unsupported; even with recent ncurses
versions you could run into problems with some games dependent on the
version of ncurses; if so, get a debugging version of ncurses
(libncurses_g.a), link with -lncurses_g instead of -lncurses, and good
luck bug-hunting.  If the display gets confused in ordinary use (as
opposed for example to after resizing the window), this might be a bug
in the game, but is probably a bug in ncurses.  You also need some
sort of lex and yacc; by default this package will use flex and bison,
but byacc will probably work as well.  Libc5 versions before 5.4.5, or
libc4, will not work since they don't have the BSD <err.h> error
reporting functions.  libcrypto from OpenSSL can optionally be used by
factor.

You now need a word list for boggle and hangman; bsd-games no longer
provides one itself.  The GNU miscfiles package contains one, for
example.  The path can be specified at configure time (default:
/usr/share/dict/words).  The file used by hangman can also be
specified at run time with the "-d" option.

The makefiles require GNU make; if you have a strange system on which
"make" is not GNU make you can use it under some other name since
$(MAKE) is used where appropriate.  The configure script assumes that
/bin/sh is a POSIX.2 shell (bash is known to work; current versions of
ksh and ash should be OK but I haven't tested them); it can be run
manually with "bash configure" or similar if /bin/sh is not a POSIX.2
shell.  It uses the POSIX.2 printf utility (in GNU sh-utils, and a
builtin in bash 2.02) to avoid depending on echo -n.

I am not aware of any dependence on the version of gcc used, although
it would be advisable to use gcc 2.7.2.1 or later (or use
-fno-strength-reduce).  EGCS releases 1.1.x may produce spurious
warnings about uninitialized variables because of limitations in the
code to detect this, but this does not affect the correctness of the
compiled code; this seems to be fixed in GCC 2.95.  Some glibc
versions may produce many warnings in the system headers; these
generally represent bugs in the headers whose only impact is cosmetic,
and can be ignored.

Security
========

See the SECURITY file for a discussion of security issues about the
BSD games.

Alternative implementations
===========================

Some of the programs in this package have alternative implementations
for Linux available, which you may wish to use some of instead of the
BSD versions:

* banner is in util-linux.
* factor is in GNU sh-utils as of version 1.12q.
* An extensively modified version of fortune is available as
"fortune-mod".  There are also many additional fortune data files
(including translations of the ones included here) available.
* Perl implementations of some of the games are included in the "Perl
Power Tools" project (http://language.perl.com/ppt/).
* My enhanced version of ppt with support for PostScript output is
available as "nppt" from metalab and its mirrors.

Building and installation
=========================

1.  cd to the top level directory in the source distribution, i.e. the
    directory that contains this file.  There is not yet any support
    for building in a directory other than the source directory.

2.  Run "./configure" and configure the installation to your liking.
    There may be some games you don't want to build because you have
    them from elsewhere (see above).  You can specify particular games
    you do not want built before specifying the list of games to build
    (which will default to all those available, except those you have
    excluded).

    The filesystem structure used defaults to that the the Filesystem
    Hierarchy Standard (FHS), version 2.0.  If you are using the older
    FSSTND 1.2, or a newer FHS, or wish to install into /usr/local,
    check the paths given and make changes as appropriate.

3.  Type "make".  You can probably ignore compiler warnings, although
    most should be fixed in this release.  If you are building on a 64
    bit architecture, you might want to look over the warnings and let
    me know about any that are normally significant in such cases.
    Recent versions of gcc give many "missing initializer" warnings;
    these are harmless, as are the warnings in system headers
    mentioned above.  Likewise, "null format string" warnings are
    harmless; future versions of GCC will probably eliminate them, by
    allowing headers to specify whether it is OK for a format argument
    to a particular function to be null.

    At the start of the build, there will be many "No such file or
    directory" warnings from make.  Ignore these as long as make does
    not stop because of them: these refer to dependency files that
    make can regenerate for itself.  See "Automatic Dependencies" in
    the GNU Make manual for details.

    In the unlikely event of an internal compiler error, the build
    system supports generating the files of preprocessor output
    required for a bug report: if the error occurs while compiling
    "foo/bar.c", then "make foo/bar.i" will put the preprocessor
    output in "foo/bar.i", suitable for sending in a bug report along
    with details of compiler version and options used.  You may,
    however, wish to minimise the testcase before sending a bug
    report, if you have the time to do so.

4.  Run the testsuite (non-interactive) with "make check".  All tests
    should pass.

5.  Save copies of any old versions of games you like and their
    datafiles, until you know that the new versions work.

6.  Become root.  (If, as an ordinary user, you are installing under
    your home directory, and have chosen not to set owners and groups
    on the installed files, there is of course no need to do this.)

7.  Type "make install".  If you want the installed binaries to be
    stripped, use "make install-strip" instead.  This saves disk
    space, but means that you cannot debug the installed binaries.

8.  If you had an old installation of bsd-games, check for file
    locations that have changed.  You will probably want to remove old
    executables and static data (formerly defaulting to installation
    in /usr/games/lib), and replace any empty score files that have
    been installed with your old ones (checking the permissions).

    The default locations changed again in 2.2, to those mandated by
    the new FHS 2.0 - manpages in /usr/share/man, variable data in
    /var/games.  In addition, huntd's default location has changed
    from /usr/sbin back to /usr/games and the location for dm to keep
    hidden games has changed from /usr/libexec/dm to
    /usr/lib/games/dm.

    In version 2.4, the recommended permissions on the directory for
    sail, if you installed it setgid, changed from 0775 to 2770; you
    may need to adjust the permissions manually if you had a previous
    installation of version 2.3.

9.  The robots scorefile format changed in version 2.8, so any old
    score file should be removed or renamed when first upgrading to
    this or a later version, and a new one created with the correct
    permissions.

10. You may wish to do something with the BSD Users' Supplementary
    Documents for trek and rogue, in trek/USD.doc/trek.me and
    rogue/USD.doc/rogue.me.  You can look at them on a text terminal
    with "nroff -me" (piped to your pager), or format in PostScript
    for printing with "groff -me -Tps".

11. "make distclean" will restore the source directory to the original
    unpacked state.  The automatically generated dependency files
    include paths to system headers, including those in gcc's internal
    header directory: if you have changed your compiler or library
    headers between building bsd-games and cleaning up, you can use
    "make distclean nodep=true" to avoid this causing problems.

    "make clean" will restore the sources to the state just after
    configuration.

Further information
===================

Some subdirectories have README.linux files.  If you are still having
trouble with a program, check this file first -- it may contain some
helpful hints, or information about further configuration options.

See TODO for information on what needs to be improved in this package;
you may want to volunteer for some of the things in there.

The file BUGS lists known bugs.  The README file discusses how to
produce useful bug reports.

Joseph S. Myers
jsm@polyomino.org.uk



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