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269 lines
8.5 KiB
Plaintext
269 lines
8.5 KiB
Plaintext
Building and Installing Emacs on 64-bit MS-Windows
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using MSYS2 and MinGW-w64
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Copyright (c) 2015-2020 Free Software Foundation, Inc.
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See the end of the file for license conditions.
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This document describes how to compile a 64-bit GNU Emacs using MSYS2
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and MinGW-w64. For instructions for building a 32-bit Emacs using
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MSYS and MinGW, see the file INSTALL in this directory.
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Do not use this recipe with Cygwin. For building on Cygwin, use the normal
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installation instructions in ../INSTALL.
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* Requirements
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The total space required is 3GB: 1.8GB for MSYS2 / MinGW-w64 and 1.2GB for
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Emacs with the full repository, or less if you're using a release tarball.
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* Set up the MinGW-w64 / MSYS2 build environment
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MinGW-w64 provides a complete runtime for projects built with GCC for 64-bit
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Windows -- it's located at http://mingw-w64.org/.
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MSYS2 is a Cygwin-derived software distribution for Windows which provides
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build tools for MinGW-w64 -- see http://msys2.github.io/.
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** Download and install MinGW-w64 and MSYS2
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You can download the x86_64 version of MSYS2 (i.e. msys2-x86_64-<date>.exe)
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from
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https://sourceforge.net/projects/msys2/files/Base/x86_64
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Run this file to install MSYS2 in your preferred directory, e.g. the default
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C:\msys64 -- this will install MinGW-w64 also. Note that directory names
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containing spaces may cause problems.
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** Download and install the necessary packages
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Run c:/msys64/msys2.exe in your MSYS2 directory and you will see a BASH window
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opened.
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In the BASH prompt, use the following command to install the necessary
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packages (you can copy and paste it into the shell with Shift + Insert):
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pacman -S --needed base-devel \
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mingw-w64-x86_64-toolchain \
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mingw-w64-x86_64-xpm-nox \
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mingw-w64-x86_64-libtiff \
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mingw-w64-x86_64-giflib \
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mingw-w64-x86_64-libpng \
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mingw-w64-x86_64-libjpeg-turbo \
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mingw-w64-x86_64-librsvg \
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mingw-w64-x86_64-lcms2 \
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mingw-w64-x86_64-jansson \
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mingw-w64-x86_64-libxml2 \
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mingw-w64-x86_64-gnutls \
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mingw-w64-x86_64-zlib
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The packages include the base developer tools (autoconf, grep, make, etc.),
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the compiler toolchain (gcc, gdb, etc.), several image libraries, an XML
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library, the GnuTLS (transport layer security) library, and zlib for
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decompressing text. Only the first three packages are required (base-devel,
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toolchain, xpm-nox); the rest are optional. You can select only part of the
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libraries if you don't need them all.
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You now have a complete build environment for Emacs.
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* Install Git (optional) and disable autocrlf
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If you're going to be building the development version of Emacs from the Git
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repository, and you don't already have Git on your system, you can install it
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in your MSYS2 environment with:
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pacman -S git
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The autocrlf feature of Git may interfere with the configure file, so it is
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best to disable this feature by running the command:
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git config core.autocrlf false
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* Get the Emacs source code
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Now you can either get an existing release version of the Emacs source code
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from the GNU ftp site, or get the more current version and history from the
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Git repository.
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You can always find the most recent information on these sources from the GNU
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Savannah Emacs site, https://savannah.gnu.org/projects/emacs.
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** From the FTP site
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The Emacs ftp site is located at https://ftp.gnu.org/gnu/emacs/ - download the
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version you want to build and put the file into a location like C:\emacs\,
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then uncompress it with tar. This will put the Emacs source into a folder like
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C:\emacs\emacs-24.5:
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cd /c/emacs
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tar xJf emacs-24.5.tar.xz
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** From the Git repository
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To download the Git repository, do something like the following -- this will
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put the Emacs source into C:\emacs\emacs-26:
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mkdir /c/emacs
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cd /c/emacs
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git clone git://git.sv.gnu.org/emacs.git emacs-26
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(We recommend using the command shown on Savannah Emacs project page.)
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* Build Emacs
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Now you're ready to build and install Emacs with autogen, configure, make,
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and make install.
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First we need to switch to the MinGW-w64 environment. Exit the MSYS2 BASH
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console and run mingw64.exe in the C:\msys64 folder, then cd back to
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your Emacs source directory, e.g.:
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cd /c/emacs/emacs-26
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** Run autogen
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If you are building the development sources, run autogen to generate the
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configure script (note: this step is not necessary if you are using a
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release source tarball, as the configure file is included):
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./autogen.sh
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** Run configure
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Now you can run configure, which will build the various Makefiles -- note
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that the example given here is just a simple one - for more information
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on the options available please see the INSTALL file in this directory.
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The '--prefix' option specifies a location for the resulting binary files,
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which 'make install' will use - in this example we set it to C:\emacs\emacs-26.
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If a prefix is not specified the files will be put in the standard Unix
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directories located in your C:\msys64 directory, but this is not recommended.
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Note also that we need to disable D-Bus because Emacs does not yet
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support them on Windows.
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./configure --prefix=/c/emacs/emacs-26 --without-dbus
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** Run make
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This will compile Emacs and build the executables, putting them in the src
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directory:
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make
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To speed up the process, you can try running
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make -jN
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where N is the number of cores in your system -- if your MSYS2 make supports
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parallel execution it will run significantly faster.
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** Run make install
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Now you can run "make install", which will copy the executable and
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other files to the location specified in the configure step. This will
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create the bin, libexec, share, and var directories:
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make install
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You can also say
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make install prefix=/c/somewhere
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to install them somewhere else.
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* Test Emacs
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To test it out, run
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./bin/runemacs.exe -Q
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and if all went well, you will have a new 64-bit version of Emacs.
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When running Emacs from outside the mingw64 shell, you will need to
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add c:\msys64\mingw64\bin to your Windows PATH, or copy the needed
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DLLs into Emacs' bin/ directory. Otherwise features such as TLS which
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depend on those DLLs will be missing.
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You can do this through Control Panel / System and Security / System /
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Advanced system settings / Environment Variables / Edit path.
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* Make a shortcut
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To make a shortcut to run the new Emacs, right click on the location where you
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want to put it, e.g. the Desktop, select New / Shortcut, then select
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runemacs.exe in the bin folder of the new Emacs, and give it a name.
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You can set any command line options by right clicking on the resulting
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shortcut, select Properties, then add any options to the Target command,
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e.g. --debug-init.
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* Troubleshooting
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** Missing mingw64.exe launcher
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Older versions of Msys2 may lack the mingw64.exe launcher program. If
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you have them, running mingw64_shell.bat or "msys2_shell.cmd -mingw64"
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should work instead.
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Alternatively, install mingw64.exe with
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pacman -S msys/msys2-launcher-git
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** Configure errors
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*** Check that mingw64 gcc is accessible
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Errors like
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configure: error: Emacs does not support 'x86_64-pc-msys' systems.
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or
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checking the compiler's target... configure: error: Impossible to obtain gcc compiler target.
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indicate you didn't use the mingw64 launcher, or you didn't install
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gcc. It's also possible you have something in ~/.bashrc or ~/.profile
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which modifies PATH or MSYSTEM to an unexpected value, preventing gcc
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from being found. At the mingw64 bash shell, running
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gcc -v
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should give output which includes the text
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Target: x86_64-w64-mingw32
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*** Check your $PKG_CONFIG_PATH
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For a typical MSYS2 install, running
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echo $PKG_CONFIG_PATH
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at the mingw64 bash shell should give print a value starting with
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'/mingw64/lib/pkgconfig'. Incorrect values may prevent configure from
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finding installed libraries.
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* Credits
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Thanks to Chris Zheng for the original build outline as used by the
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emacsbinw64 project, located at:
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https://sourceforge.net/p/emacsbinw64/wiki/Build%20guideline%20for%20MSYS2-MinGW-w64%20system/
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* License
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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