xref: /freebsd/contrib/mandoc/INSTALL (revision d37eb51047221dc3322b34db1038ff3aa533883f)
1$Id: INSTALL,v 1.24 2021/09/20 13:25:42 schwarze Exp $
2
3About the portable mandoc distribution
4--------------------------------------
5The mandoc manpage compiler toolset (formerly called "mdocml")
6is a suite of tools compiling mdoc(7), the roff(7) macro language
7of choice for BSD manual pages, and man(7), the predominant
8historical language for UNIX manuals.
9
10It includes a man(1) manual viewer and additional tools.
11For general information, see <http://mandoc.bsd.lv/>.
12
13In case you have questions or want to provide feedback, read
14<http://mandoc.bsd.lv/contact.html>.  Consider subscribing to the
15discuss@ mailing list mentioned on that page.  If you intend to
16help with the development of mandoc, consider subscribing to the
17tech@ mailing list, too.
18
19Enjoy using the mandoc toolset!
20
21Ingo Schwarze, Karlsruhe, September 2021
22
23
24Installation
25------------
26Before manually installing mandoc on your system, please check
27whether the newest version of mandoc is already installed by default
28or available via a binary package or a ports system.  A list of the
29latest bundled and ported versions of mandoc for various operating
30systems is maintained at <http://mandoc.bsd.lv/ports.html>.
31
32Regarding how packages and ports are maintained for your operating
33system, please consult your operating system documentation.
34To install mandoc manually, the following steps are needed:
35
361. If you want to build the CGI program, man.cgi(8), too,
37run the command "echo BUILD_CGI=1 >> configure.local".
38Then run "cp cgi.h.example cgi.h" and edit cgi.h as desired.
39
402. If you also want to build the catman(8) utility, run the
41command "echo BUILD_CATMAN=1 >> configure.local".  Note that it
42is unlikely to be a drop-in replacement providing the same
43functionality as your system's "catman", if your operating
44system contains one.
45
463. Define MANPATH_DEFAULT in configure.local
47if /usr/share/man:/usr/X11R6/man:/usr/local/man is not appropriate
48for your operating system.
49
504. Run "./configure".
51This script attempts autoconfiguration of mandoc for your system.
52Read both its standard output and the file "Makefile.local" it
53generates.  If anything looks wrong or different from what you
54wish, read the file "configure.local.example", create and edit
55a file "configure.local", and re-run "./configure" until the
56result seems right to you.
57
585. Run "make".
59Any POSIX-compatible make, in particular both BSD make and GNU make,
60should work.  If the build fails, look at "configure.local.example"
61and go back to step 2.
62
636. Run "make -n install" and check whether everything will be
64installed to the intended places.  Otherwise, put some *DIR or *NM*
65variables into "configure.local" and go back to step 4.
66
677. Optionally run the regression suite.
68Basically, that amounts to "make regress" to do a standard regression
69run, running all tests.  For more fine-grained control,
70read "./mandoc -l regress/regress.pl.1",
71then run "cd regress && ./regress.pl" with optional arguments.
72The regression suite requires a reasonably modern Perl interpreter.
73Examples of systems that are too old to run the regression suite
74include Solaris 9, Solaris 10, and Mac OS X 10.4 Tiger.
75On Solaris 11, the suite does run, but some tests fail;
76look at the BUGS section of that manual page.
77
788. Run "sudo make install".  If you intend to build a binary
79package using some kind of fake root mechanism, you may need a
80command like "make DESTDIR=... install".  Read the *-install targets
81in the "Makefile" to understand how DESTDIR is used.
82
839. Run the command "sudo makewhatis" to build mandoc.db(5) databases
84in all the directory trees configured in step 3.  Whenever installing
85new manual pages, re-run makewhatis(8) to update the databases, or
86apropos(1) will not find the new pages.
87
8810. To set up a man.cgi(8) server, read its manual page.
89
90Note that a very small number of man(7) pages contain low-level
91roff(7) markup that mandoc does not yet understand.  On some BSD
92systems using mandoc, third-party software is vetted on whether it
93may be formatted with mandoc.  If not, groff(1) is pulled in as a
94dependency and used to install pre-formatted "catpages" instead of
95manual page sources.  This mechanism is used much less frequently
96than in the past.  On OpenBSD, only 25 out of about 10000 ports
97still require formatting with groff(1).
98
99
100Understanding mandoc dependencies
101---------------------------------
102The following libraries are required:
103
1041. zlib for decompressing gzipped manual pages.
105
1062. The fts(3) directory traversion functions.
107If your system does not have them, the bundled compatibility version
108will be used, so you need not worry in that case.  But be careful: old
109glibc versions of fts(3) were known to be broken on 32bit platforms,
110see <https://sourceware.org/bugzilla/show_bug.cgi?id=11460>.
111That was presumably fixed in glibc-2.23.
112If you run into that problem, set "HAVE_FTS=0" in configure.local.
113
1143. Marc Espie's ohash(3) library.
115If your system does not have it, the bundled compatibility version
116will be used, so you probably need not worry about it.
117
118One of the chief design goals of the mandoc toolbox is to make
119sure that nothing related to documentation requires C++.
120Consequently, linking mandoc against any kind of C++ program
121would defeat the purpose and is not supported.
122
123
124Checking autoconfiguration quality
125----------------------------------
126If you want to check whether automatic configuration works well
127on your platform, consider the following:
128
129The mandoc package intentionally does not use GNU autoconf because
130we consider that toolset a blatant example of overengineering that
131is obsolete nowadays, since all modern operating systems are now
132reasonably close to POSIX and do not need arcane shell magic any
133longer.  If your system does need such magic, consider upgrading
134to reasonably modern POSIX-compliant tools rather than asking for
135autoconf-style workarounds.
136
137As far as mandoc is using any features not mandated by ANSI X3.159-1989
138("ANSI C") or IEEE Std 1003.1-2008 ("POSIX") that some modern systems
139do not have, we intend to provide autoconfiguration tests and
140compat_*.c implementations.  Please report any that turn out to be
141missing.  Note that while we do strive to produce portable code,
142we do not slavishly restrict ourselves to POSIX-only interfaces.
143For improved security and readability, we do use well-designed,
144modern interfaces like reallocarray(3) even if they are still rather
145uncommon, of course bundling compat_*.c implementations as needed.
146
147Where mandoc is using ANSI C or POSIX features that some systems
148still lack and that compat_*.c implementations can be provided for
149without too much hassle, we will consider adding them, too, so
150please report whatever is missing on your platform.
151
152The following steps can be used to manually check the automatic
153configuration on your platform:
154
1551. Run "make distclean".
156
1572. Run "./configure"
158
1593. Read the file "config.log".  It shows the compiler commands used
160to test the libraries installed on your system and the standard
161output and standard error output these commands produce.  Watch out
162for unexpected failures.  Those are most likely to happen if headers
163or libraries are installed in unusual places or interfaces defined
164in unusual headers.  You can also look at the file "config.h" and
165check that no "#define HAVE_*" differ from your expectations.
166