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Building and Installing Emacs on 64-bit MS-Windows
using MSYS2 and MinGW-w64
Copyright (c) 2015-2017 Free Software Foundation, Inc.
See the end of the file for license conditions.
This document describes how to compile a 64-bit GNU Emacs using MSYS2
and MinGW-w64. For instructions for building a 32-bit Emacs using
MSYS and MinGW, see the file INSTALL in this directory.
Do not use this recipe with Cygwin. For building on Cygwin, use the normal
installation instructions in ../INSTALL.
* Requirements
The total space required is 3GB: 1.8GB for MSYS2 / MinGW-w64 and 1.2GB for
Emacs with the full repository, or less if you're using a release tarball.
* Set up the MinGW-w64 / MSYS2 build environment
MinGW-w64 provides a complete runtime for projects built with GCC for 64-bit
Windows -- it's located at http://mingw-w64.org/.
MSYS2 is a Cygwin-derived software distribution for Windows which provides
build tools for MinGW-w64 -- see http://msys2.github.io/.
** Download and install MinGW-w64 and MSYS2
You can download the x86_64 version of MSYS2 (i.e. msys2-x86_64-<date>.exe)
from
https://sourceforge.net/projects/msys2/files/Base/x86_64
Run this file to install MSYS2 in your preferred directory, e.g. the default
C:\msys64 -- this will install MinGW-w64 also. Note that directory names
containing spaces may cause problems.
Then you'll need to add the following directories to your Windows PATH
environment variable:
c:\msys64\usr\bin;c:\msys64\mingw64\bin
you can do this through Control Panel / System and Security / System /
Advanced system settings / Environment Variables / Edit path.
Adding these directories to your PATH tells Emacs where to find the DLLs it
needs to run, and some optional commands like grep and find. These commands
will also be available at the Windows console.
** Download and install the necessary packages
Run msys2_shell.bat in your MSYS2 directory and you will see a BASH window
opened.
In the BASH prompt, use the following command to install the necessary
packages (you can copy and paste it into the shell with Shift + Insert):
pacman -S base-devel \
mingw-w64-x86_64-toolchain \
mingw-w64-x86_64-xpm-nox \
mingw-w64-x86_64-libtiff \
mingw-w64-x86_64-giflib \
mingw-w64-x86_64-libpng \
mingw-w64-x86_64-libjpeg-turbo \
mingw-w64-x86_64-librsvg \
mingw-w64-x86_64-libxml2 \
mingw-w64-x86_64-gnutls \
mingw-w64-x86_64-zlib
The packages include the base developer tools (autoconf, grep, make, etc.),
the compiler toolchain (gcc, gdb, etc.), several image libraries, an XML
library, the GnuTLS (transport layer security) library, and zlib for
decompressing text. Only the first three packages are required (base-devel,
toolchain, xpm-nox); the rest are optional. You can select only part of the
libraries if you don't need them all.
You now have a complete build environment for Emacs.
* Install Git (optional) and disable autocrlf
If you're going to be building the development version of Emacs from the Git
repository, and you don't already have Git on your system, you can install it
in your MSYS2 environment with:
pacman -S git
The autocrlf feature of Git may interfere with the configure file, so it is
best to disable this feature by running the command:
git config core.autocrlf false
* Get the Emacs source code
Now you can either get an existing release version of the Emacs source code
from the GNU ftp site, or get the more current version and history from the
Git repository.
You can always find the most recent information on these sources from the GNU
Savannah Emacs site, https://savannah.gnu.org/projects/emacs.
** From the FTP site
The Emacs ftp site is located at http://ftp.gnu.org/gnu/emacs/ - download the
version you want to build and put the file into a location like C:\emacs\,
then uncompress it with tar. This will put the Emacs source into a folder like
C:\emacs\emacs-24.5:
cd /c/emacs
tar xJf emacs-24.5.tar.xz
** From the Git repository
To download the Git repository, do something like the following -- this will
put the Emacs source into C:\emacs\emacs-25:
mkdir /c/emacs
cd /c/emacs
git clone git://git.sv.gnu.org/emacs.git emacs-25
(We recommend using the command shown on Savannah Emacs project page.)
* Build Emacs
Now you're ready to build and install Emacs with autogen, configure, make,
and make install.
First we need to switch to the MinGW-w64 environment. Exit the MSYS2 BASH
console and run mingw64_shell.bat in the C:\msys64 folder, then cd back to
your Emacs source directory, e.g.:
cd /c/emacs/emacs-25
** Run autogen
If you are building the development sources, run autogen to generate the
configure script (note: this step is not necessary if you are using a
release source tarball, as the configure file is included):
./autogen.sh
** Run configure
Now you can run configure, which will build the various Makefiles -- note
that the example given here is just a simple one - for more information
on the options available please see the INSTALL file in this directory.
The '--prefix' option specifies a location for the resulting binary files,
which 'make install' will use - in this example we set it to C:\emacs\emacs-25.
If a prefix is not specified the files will be put in the standard Unix
directories located in your C:\msys64 directory, but this is not recommended.
Note also that we need to disable Imagemagick because Emacs does not yet
support it on Windows.
PKG_CONFIG_PATH=/mingw64/lib/pkgconfig \
./configure --prefix=/c/emacs/emacs-25 --without-imagemagick
** Run make
This will compile Emacs and build the executables, putting them in the src
directory:
make
To speed up the process, you can try running
make -jN
where N is the number of cores in your system -- if your MSYS2 make supports
parallel execution it will run significantly faster.
** Run make install
Now you can run "make install", which will copy the executable and
other files to the location specified in the configure step. This will
create the bin, libexec, share, and var directories:
make install
You can also say
make install prefix=/c/somewhere
to install them somewhere else.
* Test Emacs
To test it out, run
./bin/runemacs.exe -Q
and if all went well, you will have a new 64-bit version of Emacs.
* Make a shortcut
To make a shortcut to run the new Emacs, right click on the location where you
want to put it, e.g. the Desktop, select New / Shortcut, then select
runemacs.exe in the bin folder of the new Emacs, and give it a name.
You can set any command line options by right clicking on the resulting
shortcut, select Properties, then add any options to the Target command,
e.g. --debug-init.
* Credits
Thanks to Chris Zheng for the original build outline as used by the
emacsbinw64 project, located at:
https://sourceforge.net/p/emacsbinw64/wiki/Build%20guideline%20for%20MSYS2-MinGW-w64%20system/
* License
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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