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Feature #1281 » 0030-Rename-doc-INSTALL.meson-as-main-INSTALL.patch

Marko Lindqvist, 04/03/2025 02:40 AM

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INSTALL
This document is about using old autotools based build system.
Installing with modern meson based build system is documented
in doc/INSTALL.meson.
==============================
Installing Freeciv with Meson:
==============================
===================
Installing Freeciv:
===================
This file describes how to compile and install Freeciv with the
Meson build system support. The other supported way to compile and
install Freeciv is using autotools as described in doc/INSTALL.autotools.
This file describes how to compile and install Freeciv. Last time we
made sure this file is up to date was 16-Jul-06.
Last minor update was 18-Jan-25.
There may be a localized version of this file in the ./doc directory,
named INSTALL.<locale> (e.g., INSTALL.de).
Prerequisites:
==============
This document contains sections and subsections as follows:
0. Prerequisites:
1. Prerequisites for the clients:
1a. Prerequisites for the Gtk3.22 client:
1b. Prerequisites for the Gtk4 client:
1c. Prerequisites for the SDL2 client:
1d. Prerequisites for the Qt client:
2. Generating Makefiles
2a. Generating the Makefile for git versions:
2b. Generating the Makefile for release versions:
3. Compiling Freeciv:
4. Installation:
5. Native Language Support:
6. Readline Support:
7. Reinier's Solaris Installation Notes:
8. Mac OS X and Darwin notes:
9. Windows notes:
Freeciv has mostly the same prerequisites no matter if it's built
with autotools or meson and ninja. The only difference is the requirement
of the build system itself. Meson build does not need autotools, nor does
autotools build need meson. See INSTALL.autotools file for the
common prerequisites.
For the meson based build minimum version of meson is 0.63.0.
0. Prerequisites:
=================
Freeciv has a number of prerequisites. Note, that apart from the first
prerequisite, the Freeciv configuration process is smart enough to work
out whether your system is suitable. If in doubt, just try it.
Overview:
=========
- Unix (or similar)
There's two parts in building freeciv. First one needs to configure the
build, and then execute it.
The Unix operating system, a work-alike such as Linux or FreeBSD,
or some OS that provides a very Unix-like personality or mode, like
EMX under OS/2 or the Cygwin toolkit under Windows.
(See https://www.cygwin.com/). Support for BSD-style TCP/IP sockets
is essential, as is a Bourne-shell compatible shell, such as GNU "bash".
(Most Unixes fit the bill...)
Build directory is configured with the 'meson' command. This is equivalent
of running './configure' in autotools based system. Meson does not allow
configuring the source directory. It always requires separate build directory.
Just create an empty directory, cd in to it, and run meson with path to
source directory as parameter. You can also give configure options in this
phase.
- An ANSI C compiler.
> mkdir build ; cd build
> meson setup ../freeciv-3.1.0
Freeciv is written in very portable (almost) ANSI C. Both 32- and 64-
bit machines are supported. You cannot use a "K&R C" compiler, or
a C++ compiler.
You need to configure the build directory just once. As source files get
updated, you can just execute incremental builds in the build directory.
You can have multiple build directories configured to use the same source
directory, typically set up with different configure options. You can
for example have separate build directories for different kinds of clients.
Development of Freeciv is primarily done with "gcc", the GNU
project's excellent C compiler. Releases can be compiled with gcc
or most other compilers (such as clang or the unbundled Solaris C compiler).
The build is executed with 'ninja' command. This is equivalent of running
'make' in autotools based system. It's also used to install freeciv
- A "make" program.
> ninja
> ninja install
Freeciv developers generally use "gmake", the GNU make program.
Officially released versions of Freeciv are designed to have
makefiles which work with most make programs.
Configure options:
==================
You can check if you have GNU make installed on your system by
typing:
Configure options are given as '-D<option>=<value>'.
For example to set freeciv installation prefix as
'/home/cazfi/freeciv-install':
% make -v [and if this doesn't work, try "gmake -v"]
> meson setup ../src -Dprefix=/home/cazfi/freeciv-install
The output should include "GNU Make" somewhere.
You can give configure options when you first set up the build directory
(like in example above), or you can change configure options for the
build directory later by 'meson configure' subcommand like this:
- libtool version 2.2 or better
> meson configure -Dprefix=/home/cazfi/freeciv-install
- libcurl;
- For autotools based builds version 7.15.4 or better
- For meson based builds 7.56.0 or better
You get full list of configure options by running 'meson configure'
subcommand without any configure options to set
Libcurl takes care of https, and sometimes http, communication
with external services like the metaserver, and the modpack downloads
by the modpack installer.
> meson configure
https://curl.se/
Some of the configure options are implemented by meson itself for
all meson-based projects. Some options are implemented in freeciv build
system, and they are specific to freeciv.
- libicu
Libicu helps handling UTF-8 texts
Notable generic configure options:
----------------------------------
https://icu.unicode.org/
prefix (string):
The directory where Freeciv will be installed. You can install multiple
versions of Freeciv in parallel by using different prefix for each.
It's also a good idea to use prefix to avoid messing your system directories
- libsqlite3 is required unless both authentication and modpack
installer support have been disabled from the build.
debug (boolean):
Whether debug version of Freeciv should be built. While this is generic
option, some functionality in Freeciv depends on this setting.
https://www.sqlite.org/
werror (boolean):
Turn compiler warnings to hard errors. This is recommended for
any development builds of freeciv, to make sure that newly introduced
warnings get noticed.
The git version has additional requirements. A release version
contains the generated files.
default_library ('shared'/'static'/'both')
In case of freeciv, this affects build of common libfreeciv library.
The default is to build shared library, and as the binaries then
need to find the shared library at their run time, setting
system up for that may require some extra work. If one uses
this setting to build static library instead, it's going to be
included in the binaries themselves, so they don't need to find it.
- The programs from GNU gettext version 0.16 or better
Especial the xgettext program is required to create the *.gmo
files which aren't included in the git tree.
Freeciv specific configure options:
-----------------------------------
- GNU autoconf version 2.69 or better
clients (array):
List of clients to build. To disable client build completely, give an
empty array ('-Dclients=[]'). Currently gtk3.22-, sdl2-, qt-,
gtk4-, sdl3-, gtk4x-, and stub-client builds are supported.
By default builds just gtk4-client.
Autoconf is required to create configure from configure.ac.
fcmp (array):
List of freeciv modpack installer UIs to build. To disable their build
completely, give an empty array ('-Dfcmp=[]'). Currently gtk3, qt, gtk4,
gtk4x, and cli are supported. By default builds just gtk4 UI.
- GNU automake version 1.13 or better
cacert-path (string):
Custom path to CA cert bundle. If this is empty, default path will be used.
This affects mostly downloading custom modpacks with modpack installer from
an 'https' URL.
Automake is required to create the various Makefile.in from
Makefile.am.
followtag (string):
Custom followtag name. If this is empty, default follow tag is used.
That's the version tag that the client checks from the metaserver to
see if there's newer freeciv versions of the kind available.
- Python version 3.6
json-protocol (boolean):
Build json-protocol support in. Json-protocol is an alternative to the default
raw-protocol between freeciv server and client.
Some source files are generated by python scripts.
In general, the minimum supported python version will follow
that required for the meson build's minimum meson version;
see INSTALL.meson for that.
syslua ('try'/'true'/'false')
Whether to use lua from the system, or to build lua included in freeciv
source tree. The default is 'try' to use lua from the system if possible,
but fallback to using freeciv's included one if not found from system.
sys-tolua-cmd (boolean):
Whether to use tolua command from the system, or to build one
included in the freeciv source tree. For native build
the default is false, i.e., to use freeciv's own tolua.
When cross-compiling, this setting is ignored, and tolua is
always used from the build system.
1. Prerequisites for the clients:
=================================
mwand ('try'/'true'/'false')
Whether to build against MagickWand to have support for additional
mapimg formats. The default is 'try' to enable the support if possible.
The Freeciv client comes in the following forms:
* Gtk+ 3.0 widget library, version 3.22 ("Gtk+ 3.22")
* Gtk 4.0 widget library, version 4.0
* SDL2
* Qt
readline ('try'/'true'/'false')
Whether to enable readline functionality on server.
The default is 'try' to enable it if suitable readline found.
These forms have different prerequisites, explained separately below.
audio ('none'/'sdl2'/'sdl3'):
What kind of sound support should be built to the clients. Defaults to sdl2.
Your system will need to satisfy at least one of these sets of prerequisites.
tools (array):
Extra tools to build:
* ruledit : Ruleset editor
* manual : Manual generator
* ruleup : Ruleset upgrader
Default is to build them all.
Note that most Linux systems have separate library packages for "runtime"
library support and for development support (for compiling programs
which use those libraries). To compile Freeciv on such systems you
will need to have the appropriate "development" packages installed.
nls (boolean):
Build in Native Language Support. Defaults to true.
Sound support is built in by default if development files for
"SDL2" and "SDL2_mixer" libraries are found from the system.
Minimum version for SDL2 is 2.0.6.
gitrev (boolean):
Include git commit id to the version string.
https://github.com/libsdl-org/SDL_mixer/releases/download/release-2.8.0/SDL2_mixer-2.8.0.tar.gz
server ('disabled'/'enabled'/'freeciv-web'):
Whether to build server, or not. Special value 'freeciv-web'
means that freeciv-web version will be built instead of
the regular server.
appimage (boolean):
Make build suitable for AppImage packaging. This affects paths from
which various resources are looked from, and produces build that
doesn't work outside AppImage.
gen-packets-args (array):
Additional packet generator arguments passed to common/generate_packets.py.
qtver ('qt6'/'qt6x'):
Whether to build Qt6, or experimental Qt6 versions of the binaries.
project-definition (string):
Filename of the project definition to use. See below for contents of
such a file
min-win-ver (string):
Minimum Windows version the build should support. Versions listed on
https://learn.microsoft.com/en-us/cpp/porting/modifying-winver-and-win32-winnt?view=msvc-170
localeprefix (string):
If non-empty, will be used instead of default prefix when constructing locale path.
Default prefix is the regular prefix on most systems,
but current directory ('.') in Windows.
Unlike regular prefix, this can also be a relative path.
python (string):
Python interpreter to use. Defaults to 'python3'
svgflags (boolean)
Add support for svg flags features on clients where this is supported,
currently only Qt.
fcdb (array):
fcdb (player authentication) backends to build.
Possible backends are sqlite3, mariadb, and odbc.
The default is sqlite3.
Project definition file
-----------------------
Each line of project definition line must have keyword in the beginning,
separated by a space from the rest of the line containing the value.
There's an example file bootstrap/freeciv.fcproj
Supported keys:
META_URL - URL of the default metaserver
MODPACK_LIST_URL - URL of the default modpack list
FREECIV_STORAGE_DIR - Directory where freeciv stores user files
FREECIV_DEFAULT_PORT - Default port of the server
run.sh
------
1a. Prerequisites for the Gtk+ 3.22 client:
==========================================
- "pkgconf", or older "pkg-config"
"pkgconf" is a system for managing library compile/link flags that
works with automake and autoconf. You may obtain it at:
https://distfiles.dereferenced.org/pkgconf/pkgconf-2.0.2.tar.xz
- The "Glib" utility library.
The "Glib" utility library provides non-graphical functions used by the
"Gdk" and "Gtk+" libraries, like hash tables, single linked lists, etc.
Freeciv requires a version of "Glib" greater or equal to 2.50
If the Freeciv configure process tells you that you don't have the
Glib library installed, then it may be obtained from here:
https://download.gnome.org/sources/glib/2.78/glib-2.78.4.tar.xz
- The "Atk" accessibility library.
The "Atk" library provides a set of interfaces for accessibility.
It allows people with disabilities to utilize all the functionality
provided by Gtk+ apps. You may obtain it at:
https://download.gnome.org/sources/atk/2.38/atk-2.38.0.tar.xz
- The "Pango" text layout and rendering library.
"Pango" is library for layout and rendering of text, with an emphasis
on internationalization. You may obtain it at:
https://download.gnome.org/sources/pango/1.50/pango-1.50.14.tar.xz
- The "Gdk-Pixbuf" image loading/saving library
"Gdk-Pixbuf" used to be part of "Gtk+" itself, but is now separate
project. It may be obtained from:
https://download.gnome.org/sources/gdk-pixbuf/2.42/gdk-pixbuf-2.42.10.tar.xz
- The "Gtk+" widget library.
The "Gtk+" widget library was designed for the GIMP graphics program.
Since then it has gained popularity as an easy to program, free toolkit.
"Gtk+ 3.22" is the default client. If you don't specify any client with
"--enable-client" to configure, you will get "Gtk+ 3.22" client.
The "Gtk+" library comes with one companion libraries:
"Gdk":
Provides an abstraction layer over X-Windows/LinuxFB/Windows to implement
basic drawing functions, windows, clipping, etc.
Freeciv requires a version of "Gtk+" greater or equal to 3.22.0.
If the Freeciv configure process tells you that you don't have the
Gtk+ library installed, then it may be obtained from here:
https://download.gnome.org/sources/gtk+/3.24/gtk%2B-3.24.41.tar.xz
"Gtk+" depends on the "Glib", "Atk", "Gdk-Pixbuf", and "Pango" libraries.
If you are going to make these yourself, build and install them in the
following order: pkgconf, Glib, Atk, Pango, Gdk-Pixbuf, Gtk+.
1b. Prerequisites for the Gtk 4.0 client:
==========================================
- "pkgconf", or older "pkg-config"
"pkgconf" is a system for managing library compile/link flags that
works with automake and autoconf. You may obtain it at:
https://distfiles.dereferenced.org/pkgconf/pkgconf-2.0.2.tar.xz
- The "Glib" utility library.
The "Glib" utility library provides non-graphical functions used by the
"Gdk" and "Gtk" libraries, like hash tables, single linked lists, etc.
Freeciv requires a version of "Glib" greater or equal to 2.66
If the Freeciv configure process tells you that you don't have the
Glib library installed, then it may be obtained from here:
https://download.gnome.org/sources/glib/2.78/glib-2.78.4.tar.xz
- The "Atk" accessibility library.
The "Atk" library provides a set of interfaces for accessibility.
It allows people with disabilities to utilize all the functionality
provided by Gtk apps. You may obtain it at:
https://download.gnome.org/sources/atk/2.38/atk-2.38.0.tar.xz
- The "Pango" text layout and rendering library.
"Pango" is library for layout and rendering of text, with an emphasis
on internationalization. You may obtain it at:
https://download.gnome.org/sources/pango/1.50/pango-1.50.14.tar.xz
- The "Gdk-Pixbuf" image loading/saving library
You may be obtain it at:
https://download.gnome.org/sources/gdk-pixbuf/2.42/gdk-pixbuf-2.42.10.tar.xz
- The "Gtk" widget library.
The "Gtk" widget library was designed for the GIMP graphics program.
Since then it has gained popularity as an easy to program, free toolkit.
The "Gtk" library comes with one companion libraries:
"Gdk":
Provides an abstraction layer over X-Windows/LinuxFB/Windows to implement
basic drawing functions, windows, clipping, etc.
Freeciv requires a version of "Gtk" greater or equal to 4.0.0.
If the Freeciv configure process tells you that you don't have the
Gtk library installed, then it may be obtained from here:
https://download.gnome.org/sources/gtk/4.12/gtk-4.12.5.tar.xz
"Gtk" depends on the "Glib", "Atk", "Gdk-Pixbuf", and "Pango" libraries.
If you are going to make these yourself, build and install them in the
following order: pkgconf, Glib, Atk, Pango, Gdk-Pixbuf, Gtk.
1c. Prerequisites for the SDL2 client:
=====================================
- The "SDL2" library.
"Simple DirectMedia Layer is a cross-platform multimedia library designed
to provide low level access to audio, keyboard, mouse, joystick, 3D hardware
via OpenGL, and 2D video framebuffer." (https://www.libsdl.org/)
These features make it a good choice for portable games. You may obtain it
at:
https://github.com/libsdl-org/SDL/releases/download/release-2.28.5/SDL2-2.28.5.tar.gz
To compile the client using the "SDL2" library add "--enable-client=sdl2"
to the Freeciv configure script. See the section below for more
information about the configure script.
- The "SDL2_image" library.
This library loads the PNG images (with the help of libpng) and converts
them to "SDL surfaces" that can be handled by the "SDL" library. You may
obtain it at:
https://github.com/libsdl-org/SDL_image/releases/download/release-2.8.2/SDL2_image-2.8.2.tar.gz
- The "SDL2_gfx" library.
https://www.ferzkopp.net/Software/SDL2_gfx/SDL2_gfx-1.0.4.tar.gz
- The "SDL2_ttf" library.
https://github.com/libsdl-org/SDL_ttf/releases/download/release-2.22.0/SDL2_ttf-2.22.0.tar.gz
- The "freetype" library.
This library helps to render text for the SDL2 client, using an externally
provided TrueType font. You may obtain it at:
https://download.savannah.gnu.org/releases/freetype/freetype-2.13.2.tar.xz
1d. Prerequisites for the Qt client:
====================================
- C++ compiler.
Qt-client is written in C++, so you need appropriate compiler.
Compiler needs to support c++17 standard.
In Freeciv development, g++ has been the primary C++ compiler.
Also clang++ has been used.
- Qt Meta Object Compiler (moc)
Qt's Meta Object Compiler is a command usually called 'moc', or
'moc-qt6'.
You may want install 'qtchooser' to find correct moc version for you
when you have multiple Qt versions installed in parallel.
If configure does not find (correct) moc, you can give it with
environment variable MOCCMD, e.g.,
../src/configure MOCCMD="/home/freeciv/local-qt/bin/moc" --enable-client=qt
- Qt6Core, Qt6Gui, and Qt6Widgets libraries and headers.
At least version 6.0 is required.
2. Generating Makefiles
=======================
This section contains two parts, one for generating makefiles from git
versions and one for generating makefiles from release versions.
2a. Generating the Makefile for git versions:
=============================================
This step is only needed for git versions.
To create the makefile just type
% ./autogen.sh
This will create the configure script and will run it. All parameters
of autogen.sh are passed to configure. Read the next section about the
parameters which can be passed to configure.
2b. Generating the Makefile for release versions:
=================================================
Before you compile Freeciv, you must generate a Makefile. This makefile
is configured to suit the features available on your machine.
This configuration is done using the GNU "configure" script.
To use "configure", "cd" to directory where you want the build
to end, and run it from the top directory containing
the Freeciv files:
% ../src/configure
This script will then attempt to determine the relevant features (and
misfeatures!!) of your system. It should print a page or two of
diagnostics about your machine, then stop gracefully.
If you'd like help on the various options supported by the configure
script, try the --help option, like this:
% ../src/configure --help
By default the configure script will choose the Gtk+ client if the
required libraries are found. If you prefer to override this default,
you can give configure the "--enable-client=sdl2" option.
If you want to change the compiler options, set the CFLAGS environment
variable in your shell before running "configure". For example:
% CFLAGS="-O -g -pipe" ../src//configure [for people using Bourne shell or bash]
or
% setenv CFLAGS "-O -g -pipe"
% ../src/configure [for people using C shell or tcsh]
If you're tracking down a "core dump", we suggest that you use
a value of "-g" for CFLAGS.
When you install Freeciv (later), the game components will be copied into
subdirectories of /usr/local by default. If you would like to use some
other installation prefix besides /usr/local, you should specify it now:
% ../src/configure --prefix=/opt/freeciv
If for some reason using "configure" gives you trouble, follow these steps:
- Read the prerequisites section carefully, to determine if your
system meets all the requirements.
- If the problem is with "gettext", please read the Native Language
Support section, below, for possible work-arounds.
- Let us know, so that we can fix it for the next release!!
Send mail to the freeciv-dev mailing list, telling us what you did,
and what the result is. It would be helpful to include the output
of the configure script, and the contents of the "config.status",
"config.cache" and "config.log" files, which are generated by the
configure script.
You can find out about the freeciv-dev mailing list on our web
site, at https://www.freeciv.org/
3. Compiling Freeciv:
=====================
If all has gone well previous to this point, then compiling Freeciv
should be as easy as typing "make" (or preferably, "gmake").
If you have problems, read the file BUGS, and follow the advice
carefully. If the problem is with "gettext", please read the Native
Language Support section, below, for possible work-arounds.
After compilation, the important results are:
- The "client/freeciv-<GUI>" and "server/freeciv-server" binaries.
- The "data/" directory, which contains the graphics and scenarios.
- The "translations/" directory, which contains the localization files.
- The "fcgui" and "fcser" scripts.
It's perfectly feasible to play Freeciv in this directory, without
installing it. If you do this, the "fcgui" and "fcser" scripts may be
useful, although they are not as necessary as they used to be.
See the README file for more information.
(However you cannot use Internationalization when playing Freeciv from
the source directory; you must install Freeciv for that.)
4. Installation:
================
Installing Freeciv involves installing the components mentioned in the
Compiling Freeciv section. These need to be copied to a directory such
as /usr/local (the default), /usr/games, /usr/games/freeciv,
/usr/local/freeciv, or some other suitable directory.
Typing "make install" should install everything correctly on your machine.
You may like to use the --prefix=DIR configure option (see the Generating
the Makefile section) to ensure the files get placed where you want.
When the Freeciv client and Freeciv server are run they both need to
find some files from the "data" directory. By default freeciv looks
in the following directories, in order, for any data files: the current
directory; the "data" subdirectory of the current directory; the
subdirectory ".freeciv" in the user's home directory; and the directory
where the files are placed by running "make install". You can override
this search patch by setting the FREECIV_DATA_PATH environment variable, to
a single directory or a list of directories separated by colons.
For example:
% setenv FREECIV_DATA_PATH "/usr/games/freeciv/data:./data"
(for users of csh, tcsh, etc.)
% FREECIV_DATA_PATH="/usr/games/freeciv/data:./data"; export FREECIV_DATA_PATH
(for users of sh, bash, ksh, zsh, etc.)
Also, note that you generally must install Freeciv if you wish to use
its Native Language Support. See the README file for more information.
5. Native Language Support:
===========================
Freeciv uses the "gettext" system for Native Language Support.
If you experience problems with gettext in either configuring or compiling
Freeciv, there are a few work-arounds you can try:
1. If you don't need Native Language Support, disable it using the
"--disable-nls" configure option:
% ../src/configure --disable-nls
% make
2. You can try to install the latest version of GNU gettext.
It may be obtained from here:
https://ftp.gnu.org/gnu/gettext/gettext-0.21.tar.xz
6. Readline Support:
====================
Freeciv has optional support for the readline library.
Readline support is what makes the server command line behave sensibly,
making it possible to
- Use the backspace key.
- Use the cursor to move back and forth on the line you have written.
- Use TAB completion of commands and command arguments. Ie, when you
push tab the server will finish the word for you if there is only one
possible choice.
- Use the up and down cursor to scroll through the history of previously
entered commands.
- etc.
The configure script will check if you have the readline library correctly
installed. If so it will automatically set up the makefiles so that readline
is compiled into the server. If not then it will just silently configure
without readline support.
You can force configure to include readline or die trying by giving
configure the --with-readline option:
% ../src/configure --with-readline
Some linux distributions (and possibly other operating systems) have
readline version 4 incorrectly installed, so that readline is not
set up to declare it's dynamic dependencies. In that case configure
will try to guess which extra libs it should link against and add them.
The configure script will give a warning if it had to add extra libs
to make readline work. This should be harmless, and is just meant as
a reminder to the folks who distribute readline. :)
7. Reinier's Solaris Installation Notes:
========================================
Solaris (2.5 and up) has its own version of X in /usr/openwin, its own
version of make in /usr/ccs/bin/make, and its own compiler (to be purchased
separately) which, if you have it, is available in /opt/SUNWspro/bin.
Solaris does not provide any of the stuff required for imlib, gdk and gtk,
either, which is required to build the GTK+ client. However, with some
patience, everything can be compiled without problems.
Make sure your environment variables, especially $PATH and $LD_LIBRARY_PATH,
and the configure options do not point to an inconsistent set of software,
and compiling will be fine.
You can set up your $PATH and configure to use only GNU
tools. Furthermore, Freeciv is known to compile with MIT X, and with
certain combinations of GNU and Sun tools. The exact recipes depend on your
local installation.
8. Mac OS X and Darwin notes:
=============================
Pkg-config files installed with icu4c homebrew package are not found
from normal path. This shows up as a configure error:
"icu development files not found. Adjusting PKG_CONFIG_PATH may help"
One needs to adjust PKG_CONFIG_PATH before configure, like this:
> export PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig:$PKG_CONFIG_PATH"
Mac OS has a library called libedit that provides similar functionality to
readline, but is not a suitable replacement for freeciv use of readline.
You need to provide real readline implementation (e.g. from homebrew) to
get readline functionality to the freeciv server.
Readline files from homebrew are not found from normal paths, but
you need to adjust CPPFLAGS and LDFLAGS before configure.
If you don't have CPPFLAGS or LDFLAGS defined at all beforehand, use:
> export CPPFLAGS="-I$(brew --prefix readline)/include"
> export LDFLAGS="-L$(brew --prefix readline)/lib"
If you already have either defined, include also those existing
path components, e.g. CPPFLAGS:
> export CPPFLAGS="-I$(brew --prefix readline)/include:$CPPFLAGS"
9. Windows notes:
=================
Windows version of Freeciv can be built either with Msys2 or Cygwin.
Official Windows binaries are built with Msys2, and they are self-contained
packages. For using Cygwin version, you need Cygwin environment installed.
Build instructions for Msys2 versions are documented on doc/README.msys2
Cygwin specific installation notes can be found in doc/INSTALL.Cygwin.
** END **
One of the build results is script named 'run.sh' in the build directory -
it does not get installed to the installation directory. This script can
be used to run freeciv executables from the build directory.
Give the executable name and parameters as parameters to ./run.sh, e.g.,
./run.sh freeciv-server --help
doc/INSTALL.Cygwin
the older autotools system, but that's not covered in this document.
See also the generic installation notes of meson based builds
in doc/INSTALL.meson.
in INSTALL.
Cygwin is a free Unix variant for MS Windows operating systems.
It comes with an X server, Xorg.
doc/INSTALL.autotools
This document is about using old autotools based build system.
Installing with modern meson based build system is documented
in main INSTALL document.
===================
Installing Freeciv:
===================
This file describes how to compile and install Freeciv. Last time we
made sure this file is up to date was 16-Jul-06.
Last minor update was 18-Jan-25.
There may be a localized version of this file in the ./doc directory,
named INSTALL.<locale> (e.g., INSTALL.de).
This document contains sections and subsections as follows:
0. Prerequisites:
1. Prerequisites for the clients:
1a. Prerequisites for the Gtk3.22 client:
1b. Prerequisites for the Gtk4 client:
1c. Prerequisites for the SDL2 client:
1d. Prerequisites for the Qt client:
2. Generating Makefiles
2a. Generating the Makefile for git versions:
2b. Generating the Makefile for release versions:
3. Compiling Freeciv:
4. Installation:
5. Native Language Support:
6. Readline Support:
7. Reinier's Solaris Installation Notes:
8. Mac OS X and Darwin notes:
9. Windows notes:
0. Prerequisites:
=================
Freeciv has a number of prerequisites. Note, that apart from the first
prerequisite, the Freeciv configuration process is smart enough to work
out whether your system is suitable. If in doubt, just try it.
- Unix (or similar)
The Unix operating system, a work-alike such as Linux or FreeBSD,
or some OS that provides a very Unix-like personality or mode, like
EMX under OS/2 or the Cygwin toolkit under Windows.
(See https://www.cygwin.com/). Support for BSD-style TCP/IP sockets
is essential, as is a Bourne-shell compatible shell, such as GNU "bash".
(Most Unixes fit the bill...)
- An ANSI C compiler.
Freeciv is written in very portable (almost) ANSI C. Both 32- and 64-
bit machines are supported. You cannot use a "K&R C" compiler, or
a C++ compiler.
Development of Freeciv is primarily done with "gcc", the GNU
project's excellent C compiler. Releases can be compiled with gcc
or most other compilers (such as clang or the unbundled Solaris C compiler).
- A "make" program.
Freeciv developers generally use "gmake", the GNU make program.
Officially released versions of Freeciv are designed to have
makefiles which work with most make programs.
You can check if you have GNU make installed on your system by
typing:
% make -v [and if this doesn't work, try "gmake -v"]
The output should include "GNU Make" somewhere.
- libtool version 2.2 or better
- libcurl;
- For autotools based builds version 7.15.4 or better
- For meson based builds 7.56.0 or better
Libcurl takes care of https, and sometimes http, communication
with external services like the metaserver, and the modpack downloads
by the modpack installer.
https://curl.se/
- libicu
Libicu helps handling UTF-8 texts
https://icu.unicode.org/
- libsqlite3 is required unless both authentication and modpack
installer support have been disabled from the build.
https://www.sqlite.org/
The git version has additional requirements. A release version
contains the generated files.
- The programs from GNU gettext version 0.16 or better
Especial the xgettext program is required to create the *.gmo
files which aren't included in the git tree.
- GNU autoconf version 2.69 or better
Autoconf is required to create configure from configure.ac.
- GNU automake version 1.13 or better
Automake is required to create the various Makefile.in from
Makefile.am.
- Python version 3.6
Some source files are generated by python scripts.
In general, the minimum supported python version will follow
that required for the meson build's minimum meson version;
see INSTALL.meson for that.
1. Prerequisites for the clients:
=================================
The Freeciv client comes in the following forms:
* Gtk+ 3.0 widget library, version 3.22 ("Gtk+ 3.22")
* Gtk 4.0 widget library, version 4.0
* SDL2
* Qt
These forms have different prerequisites, explained separately below.
Your system will need to satisfy at least one of these sets of prerequisites.
Note that most Linux systems have separate library packages for "runtime"
library support and for development support (for compiling programs
which use those libraries). To compile Freeciv on such systems you
will need to have the appropriate "development" packages installed.
Sound support is built in by default if development files for
"SDL2" and "SDL2_mixer" libraries are found from the system.
Minimum version for SDL2 is 2.0.6.
https://github.com/libsdl-org/SDL_mixer/releases/download/release-2.8.0/SDL2_mixer-2.8.0.tar.gz
1a. Prerequisites for the Gtk+ 3.22 client:
==========================================
- "pkgconf", or older "pkg-config"
"pkgconf" is a system for managing library compile/link flags that
works with automake and autoconf. You may obtain it at:
https://distfiles.dereferenced.org/pkgconf/pkgconf-2.0.2.tar.xz
- The "Glib" utility library.
The "Glib" utility library provides non-graphical functions used by the
"Gdk" and "Gtk+" libraries, like hash tables, single linked lists, etc.
Freeciv requires a version of "Glib" greater or equal to 2.50
If the Freeciv configure process tells you that you don't have the
Glib library installed, then it may be obtained from here:
https://download.gnome.org/sources/glib/2.78/glib-2.78.4.tar.xz
- The "Atk" accessibility library.
The "Atk" library provides a set of interfaces for accessibility.
It allows people with disabilities to utilize all the functionality
provided by Gtk+ apps. You may obtain it at:
https://download.gnome.org/sources/atk/2.38/atk-2.38.0.tar.xz
- The "Pango" text layout and rendering library.
"Pango" is library for layout and rendering of text, with an emphasis
on internationalization. You may obtain it at:
https://download.gnome.org/sources/pango/1.50/pango-1.50.14.tar.xz
- The "Gdk-Pixbuf" image loading/saving library
"Gdk-Pixbuf" used to be part of "Gtk+" itself, but is now separate
project. It may be obtained from:
https://download.gnome.org/sources/gdk-pixbuf/2.42/gdk-pixbuf-2.42.10.tar.xz
- The "Gtk+" widget library.
The "Gtk+" widget library was designed for the GIMP graphics program.
Since then it has gained popularity as an easy to program, free toolkit.
"Gtk+ 3.22" is the default client. If you don't specify any client with
"--enable-client" to configure, you will get "Gtk+ 3.22" client.
The "Gtk+" library comes with one companion libraries:
"Gdk":
Provides an abstraction layer over X-Windows/LinuxFB/Windows to implement
basic drawing functions, windows, clipping, etc.
Freeciv requires a version of "Gtk+" greater or equal to 3.22.0.
If the Freeciv configure process tells you that you don't have the
Gtk+ library installed, then it may be obtained from here:
https://download.gnome.org/sources/gtk+/3.24/gtk%2B-3.24.41.tar.xz
"Gtk+" depends on the "Glib", "Atk", "Gdk-Pixbuf", and "Pango" libraries.
If you are going to make these yourself, build and install them in the
following order: pkgconf, Glib, Atk, Pango, Gdk-Pixbuf, Gtk+.
1b. Prerequisites for the Gtk 4.0 client:
==========================================
- "pkgconf", or older "pkg-config"
"pkgconf" is a system for managing library compile/link flags that
works with automake and autoconf. You may obtain it at:
https://distfiles.dereferenced.org/pkgconf/pkgconf-2.0.2.tar.xz
- The "Glib" utility library.
The "Glib" utility library provides non-graphical functions used by the
"Gdk" and "Gtk" libraries, like hash tables, single linked lists, etc.
Freeciv requires a version of "Glib" greater or equal to 2.66
If the Freeciv configure process tells you that you don't have the
Glib library installed, then it may be obtained from here:
https://download.gnome.org/sources/glib/2.78/glib-2.78.4.tar.xz
- The "Atk" accessibility library.
The "Atk" library provides a set of interfaces for accessibility.
It allows people with disabilities to utilize all the functionality
provided by Gtk apps. You may obtain it at:
https://download.gnome.org/sources/atk/2.38/atk-2.38.0.tar.xz
- The "Pango" text layout and rendering library.
"Pango" is library for layout and rendering of text, with an emphasis
on internationalization. You may obtain it at:
https://download.gnome.org/sources/pango/1.50/pango-1.50.14.tar.xz
- The "Gdk-Pixbuf" image loading/saving library
You may be obtain it at:
https://download.gnome.org/sources/gdk-pixbuf/2.42/gdk-pixbuf-2.42.10.tar.xz
- The "Gtk" widget library.
The "Gtk" widget library was designed for the GIMP graphics program.
Since then it has gained popularity as an easy to program, free toolkit.
The "Gtk" library comes with one companion libraries:
"Gdk":
Provides an abstraction layer over X-Windows/LinuxFB/Windows to implement
basic drawing functions, windows, clipping, etc.
Freeciv requires a version of "Gtk" greater or equal to 4.0.0.
If the Freeciv configure process tells you that you don't have the
Gtk library installed, then it may be obtained from here:
https://download.gnome.org/sources/gtk/4.12/gtk-4.12.5.tar.xz
"Gtk" depends on the "Glib", "Atk", "Gdk-Pixbuf", and "Pango" libraries.
If you are going to make these yourself, build and install them in the
following order: pkgconf, Glib, Atk, Pango, Gdk-Pixbuf, Gtk.
1c. Prerequisites for the SDL2 client:
=====================================
- The "SDL2" library.
"Simple DirectMedia Layer is a cross-platform multimedia library designed
to provide low level access to audio, keyboard, mouse, joystick, 3D hardware
via OpenGL, and 2D video framebuffer." (https://www.libsdl.org/)
These features make it a good choice for portable games. You may obtain it
at:
https://github.com/libsdl-org/SDL/releases/download/release-2.28.5/SDL2-2.28.5.tar.gz
To compile the client using the "SDL2" library add "--enable-client=sdl2"
to the Freeciv configure script. See the section below for more
information about the configure script.
- The "SDL2_image" library.
This library loads the PNG images (with the help of libpng) and converts
them to "SDL surfaces" that can be handled by the "SDL" library. You may
obtain it at:
https://github.com/libsdl-org/SDL_image/releases/download/release-2.8.2/SDL2_image-2.8.2.tar.gz
- The "SDL2_gfx" library.
https://www.ferzkopp.net/Software/SDL2_gfx/SDL2_gfx-1.0.4.tar.gz
- The "SDL2_ttf" library.
https://github.com/libsdl-org/SDL_ttf/releases/download/release-2.22.0/SDL2_ttf-2.22.0.tar.gz
- The "freetype" library.
This library helps to render text for the SDL2 client, using an externally
provided TrueType font. You may obtain it at:
https://download.savannah.gnu.org/releases/freetype/freetype-2.13.2.tar.xz
1d. Prerequisites for the Qt client:
====================================
- C++ compiler.
Qt-client is written in C++, so you need appropriate compiler.
Compiler needs to support c++17 standard.
In Freeciv development, g++ has been the primary C++ compiler.
Also clang++ has been used.
- Qt Meta Object Compiler (moc)
Qt's Meta Object Compiler is a command usually called 'moc', or
'moc-qt6'.
You may want install 'qtchooser' to find correct moc version for you
when you have multiple Qt versions installed in parallel.
If configure does not find (correct) moc, you can give it with
environment variable MOCCMD, e.g.,
../src/configure MOCCMD="/home/freeciv/local-qt/bin/moc" --enable-client=qt
- Qt6Core, Qt6Gui, and Qt6Widgets libraries and headers.
At least version 6.0 is required.
2. Generating Makefiles
=======================
This section contains two parts, one for generating makefiles from git
versions and one for generating makefiles from release versions.
2a. Generating the Makefile for git versions:
=============================================
This step is only needed for git versions.
To create the makefile just type
% ./autogen.sh
This will create the configure script and will run it. All parameters
of autogen.sh are passed to configure. Read the next section about the
parameters which can be passed to configure.
2b. Generating the Makefile for release versions:
=================================================
Before you compile Freeciv, you must generate a Makefile. This makefile
is configured to suit the features available on your machine.
This configuration is done using the GNU "configure" script.
To use "configure", "cd" to directory where you want the build
to end, and run it from the top directory containing
the Freeciv files:
% ../src/configure
This script will then attempt to determine the relevant features (and
misfeatures!!) of your system. It should print a page or two of
diagnostics about your machine, then stop gracefully.
If you'd like help on the various options supported by the configure
script, try the --help option, like this:
% ../src/configure --help
By default the configure script will choose the Gtk+ client if the
required libraries are found. If you prefer to override this default,
you can give configure the "--enable-client=sdl2" option.
If you want to change the compiler options, set the CFLAGS environment
variable in your shell before running "configure". For example:
% CFLAGS="-O -g -pipe" ../src//configure [for people using Bourne shell or bash]
or
% setenv CFLAGS "-O -g -pipe"
% ../src/configure [for people using C shell or tcsh]
If you're tracking down a "core dump", we suggest that you use
a value of "-g" for CFLAGS.
When you install Freeciv (later), the game components will be copied into
subdirectories of /usr/local by default. If you would like to use some
other installation prefix besides /usr/local, you should specify it now:
% ../src/configure --prefix=/opt/freeciv
If for some reason using "configure" gives you trouble, follow these steps:
- Read the prerequisites section carefully, to determine if your
system meets all the requirements.
- If the problem is with "gettext", please read the Native Language
Support section, below, for possible work-arounds.
- Let us know, so that we can fix it for the next release!!
Send mail to the freeciv-dev mailing list, telling us what you did,
and what the result is. It would be helpful to include the output
of the configure script, and the contents of the "config.status",
"config.cache" and "config.log" files, which are generated by the
configure script.
You can find out about the freeciv-dev mailing list on our web
site, at https://www.freeciv.org/
3. Compiling Freeciv:
=====================
If all has gone well previous to this point, then compiling Freeciv
should be as easy as typing "make" (or preferably, "gmake").
If you have problems, read the file BUGS, and follow the advice
carefully. If the problem is with "gettext", please read the Native
Language Support section, below, for possible work-arounds.
After compilation, the important results are:
- The "client/freeciv-<GUI>" and "server/freeciv-server" binaries.
- The "data/" directory, which contains the graphics and scenarios.
- The "translations/" directory, which contains the localization files.
- The "fcgui" and "fcser" scripts.
It's perfectly feasible to play Freeciv in this directory, without
installing it. If you do this, the "fcgui" and "fcser" scripts may be
useful, although they are not as necessary as they used to be.
See the README file for more information.
(However you cannot use Internationalization when playing Freeciv from
the source directory; you must install Freeciv for that.)
4. Installation:
================
Installing Freeciv involves installing the components mentioned in the
Compiling Freeciv section. These need to be copied to a directory such
as /usr/local (the default), /usr/games, /usr/games/freeciv,
/usr/local/freeciv, or some other suitable directory.
Typing "make install" should install everything correctly on your machine.
You may like to use the --prefix=DIR configure option (see the Generating
the Makefile section) to ensure the files get placed where you want.
When the Freeciv client and Freeciv server are run they both need to
find some files from the "data" directory. By default freeciv looks
in the following directories, in order, for any data files: the current
directory; the "data" subdirectory of the current directory; the
subdirectory ".freeciv" in the user's home directory; and the directory
where the files are placed by running "make install". You can override
this search patch by setting the FREECIV_DATA_PATH environment variable, to
a single directory or a list of directories separated by colons.
For example:
% setenv FREECIV_DATA_PATH "/usr/games/freeciv/data:./data"
(for users of csh, tcsh, etc.)
% FREECIV_DATA_PATH="/usr/games/freeciv/data:./data"; export FREECIV_DATA_PATH
(for users of sh, bash, ksh, zsh, etc.)
Also, note that you generally must install Freeciv if you wish to use
its Native Language Support. See the README file for more information.
5. Native Language Support:
===========================
Freeciv uses the "gettext" system for Native Language Support.
If you experience problems with gettext in either configuring or compiling
Freeciv, there are a few work-arounds you can try:
1. If you don't need Native Language Support, disable it using the
"--disable-nls" configure option:
% ../src/configure --disable-nls
% make
2. You can try to install the latest version of GNU gettext.
It may be obtained from here:
https://ftp.gnu.org/gnu/gettext/gettext-0.21.tar.xz
6. Readline Support:
====================
Freeciv has optional support for the readline library.
Readline support is what makes the server command line behave sensibly,
making it possible to
- Use the backspace key.
- Use the cursor to move back and forth on the line you have written.
- Use TAB completion of commands and command arguments. Ie, when you
push tab the server will finish the word for you if there is only one
possible choice.
- Use the up and down cursor to scroll through the history of previously
entered commands.
- etc.
The configure script will check if you have the readline library correctly
installed. If so it will automatically set up the makefiles so that readline
is compiled into the server. If not then it will just silently configure
without readline support.
You can force configure to include readline or die trying by giving
configure the --with-readline option:
% ../src/configure --with-readline
Some linux distributions (and possibly other operating systems) have
readline version 4 incorrectly installed, so that readline is not
set up to declare it's dynamic dependencies. In that case configure
will try to guess which extra libs it should link against and add them.
The configure script will give a warning if it had to add extra libs
to make readline work. This should be harmless, and is just meant as
a reminder to the folks who distribute readline. :)
7. Reinier's Solaris Installation Notes:
========================================
Solaris (2.5 and up) has its own version of X in /usr/openwin, its own
version of make in /usr/ccs/bin/make, and its own compiler (to be purchased
separately) which, if you have it, is available in /opt/SUNWspro/bin.
Solaris does not provide any of the stuff required for imlib, gdk and gtk,
either, which is required to build the GTK+ client. However, with some
patience, everything can be compiled without problems.
Make sure your environment variables, especially $PATH and $LD_LIBRARY_PATH,
and the configure options do not point to an inconsistent set of software,
and compiling will be fine.
You can set up your $PATH and configure to use only GNU
tools. Furthermore, Freeciv is known to compile with MIT X, and with
certain combinations of GNU and Sun tools. The exact recipes depend on your
local installation.
8. Mac OS X and Darwin notes:
=============================
Pkg-config files installed with icu4c homebrew package are not found
from normal path. This shows up as a configure error:
"icu development files not found. Adjusting PKG_CONFIG_PATH may help"
One needs to adjust PKG_CONFIG_PATH before configure, like this:
> export PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig:$PKG_CONFIG_PATH"
Mac OS has a library called libedit that provides similar functionality to
readline, but is not a suitable replacement for freeciv use of readline.
You need to provide real readline implementation (e.g. from homebrew) to
get readline functionality to the freeciv server.
Readline files from homebrew are not found from normal paths, but
you need to adjust CPPFLAGS and LDFLAGS before configure.
If you don't have CPPFLAGS or LDFLAGS defined at all beforehand, use:
> export CPPFLAGS="-I$(brew --prefix readline)/include"
> export LDFLAGS="-L$(brew --prefix readline)/lib"
If you already have either defined, include also those existing
path components, e.g. CPPFLAGS:
> export CPPFLAGS="-I$(brew --prefix readline)/include:$CPPFLAGS"
9. Windows notes:
=================
Windows version of Freeciv can be built either with Msys2 or Cygwin.
Official Windows binaries are built with Msys2, and they are self-contained
packages. For using Cygwin version, you need Cygwin environment installed.
Build instructions for Msys2 versions are documented on doc/README.msys2
Cygwin specific installation notes can be found in doc/INSTALL.Cygwin.
** END **
doc/INSTALL.meson
==============================
Installing Freeciv with Meson:
==============================
This file describes how to compile and install Freeciv with the
Meson build system support. The other supported way to compile and
install Freeciv is using autotools as described in INSTALL.
Prerequisites:
==============
Freeciv has mostly the same prerequisites no matter if it's built
with autotools or meson and ninja. The only difference is the requirement
of the build system itself. Meson build does not need autotools, nor does
autotools build need meson. See main (autotools) INSTALL file for the
common prerequisites.
For the meson based build minimum version of meson is 0.63.0.
Overview:
=========
There's two parts in building freeciv. First one needs to configure the
build, and then execute it.
Build directory is configured with the 'meson' command. This is equivalent
of running './configure' in autotools based system. Meson does not allow
configuring the source directory. It always requires separate build directory.
Just create an empty directory, cd in to it, and run meson with path to
source directory as parameter. You can also give configure options in this
phase.
> mkdir build ; cd build
> meson setup ../freeciv-3.1.0
You need to configure the build directory just once. As source files get
updated, you can just execute incremental builds in the build directory.
You can have multiple build directories configured to use the same source
directory, typically set up with different configure options. You can
for example have separate build directories for different kinds of clients.
The build is executed with 'ninja' command. This is equivalent of running
'make' in autotools based system. It's also used to install freeciv
> ninja
> ninja install
Configure options:
==================
Configure options are given as '-D<option>=<value>'.
For example to set freeciv installation prefix as
'/home/cazfi/freeciv-install':
> meson setup ../src -Dprefix=/home/cazfi/freeciv-install
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