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Copyright 2013-2022 Free Software Foundation, Inc.
Copying and distribution of this file, with or without
modification, are permitted in any medium without royalty provided
the copyright notice and this notice are preserved.
This information supplements the generic installation instructions in
the file 'INSTALL'. It is meant for people building from the
development repository or a snapshot archive produced from it, rather
than a distribution archive. Distribution archives include a
'configure' script, among other files; snapshot archives do not. If you
want to start building the 'groff' system using an existing 'configure'
script, you don't need the information in this file.
Dependencies
------------
The dependencies documented in the 'INSTALL.extra' file are required, as
are several others.
* You will need Autoconf version 2.68 or higher and Automake version
1.12.2 or higher. These requirements are asserted in the
'bootstrap.conf' file.
On operating systems supporting concurrent installation of multiple
versions of the GNU Autotools, set environment variables as in the
following example, adjusting the version numbers as required.
$ export AUTOMAKE_VERSION=1.14
$ export AUTOCONF_VERSION=2.69
* You will need a 'yacc' program. We recommend Berkeley yacc ('byacc')
or GNU Bison ('bison').
* groff's Texinfo manual is generated in several formats: GNU Info,
HTML, plain text, TeX DVI, and PDF. The former three require
'makeinfo' from GNU Texinfo 5.0 or later. The latter two additionally
require a TeX installation, such as TeX Live.
Bootstrapping from a Git checkout
---------------------------------
Invoke the bootstrap script.
$ ./bootstrap
Bootstrapping from a snapshot archive
-------------------------------------
Obtain groff's supported revision of gnulib and place it in the empty
"gnulib" directory.
Here is the output of "git submodule" for this groff release.
c8b8f3bbcde37a53cd226f4c9cebd0dde6aca37f gnulib (v0.1-5208-gc8b8f3bbcd)
We therefore do the following.
$ hash=c8b8f3bbcde37a53cd226f4c9cebd0dde6aca37f
$ wget -O gnulib.tar.gz https://git.savannah.gnu.org/cgit/gnulib.git/\
snapshot/gnulib-$hash.tar.gz
$ tar xf gnulib.tar.gz
$ ./bootstrap --gnulib-srcdir=gnulib-$hash
What bootstrapping does
-----------------------
The foregoing procedure will do two things:
- clone the gnulib repository as a Git submodule in 'gnulib', add the
needed gnulib source files in 'lib' as well as required gnulib m4
macros in 'gnulib_m4'; and
- invoke 'autoreconf', which will call the GNU Autotools ('aclocal',
'autoconf', 'automake') in the right order to create the following
files.
-- INSTALL (a symlink to gnulib's INSTALL file)
-- Makefile.in
-- aclocal.m4
-- autom4te.cache/
-- build-aux/ (which contains all the helper scripts)
-- configure
-- src/include/config.hin
'aclocal.m4' is a generated file; groff's m4 macros are included via the
'acinclude.m4' file.
Building
--------
You can now invoke the 'configure' script. It produces the
'config.status' script, which generates the Makefile. Then call 'make'
to build the groff project. You can do these from the source tree.
$ ./configure
$ make # run with -j option if desired
You can alternatively build groff outside of its source tree, which is
cleaner, leaving fewer files to confuse 'git status' if you aim to
undertake development.
$ mkdir build
$ cd build
$ ../configure
$ make # run with -j option if desired
A separate build tree need not be a subdirectory of the source.
Evaluation
----------
Several dozen sanity checks can be performed within the build tree.
$ make check # run with -j option if desired
Installation
------------
When the build is finished you can install the groff build artifacts.
$ make install # run with 'sudo' if necessary
Uninstalling
------------
See "Uninstalling" in the 'INSTALL.extra' file.
Rebuilding
----------
Start over from "Building" above.
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