Building XZ Utils on Windows
This document explains shortly where to get and how to install the
build tool that are needed to build XZ Utils on Windows. The final
binary package will be standalone in sense that it will depend only
on DLLs that are included in all Windows installations.
These instructions don't apply to Cygwin. XZ Utils can be built under
Cygwin in the same way as many other packages.
These instructions don't apply to MinGW and MSYS developers either,
who may want to package XZ Utils for MinGW or MSYS distributions.
You know who you are, and will probably use quite different configure
options etc. than what is described here.
Installing the toolchain(s)
Some of the following is needed:
- MSYS is always needed to use the GNU Autotools based build system.
- MinGW builds 32-bit x86 binaries.
- MingW-w32 builds 32-bit x86 executables too.
- MinGW-w64 builds 64-bit x86-64 binaries.
So you need to pick between MinGW and MinGW-w32 when building
32-bit version. You don't need both.
You might find 7-Zip <http://7-zip.org/> handy when extracting
some files (especially the .tar.lzma files). The ready-made
build script will also use 7-Zip to create the distributable
.zip and .7z files.
I used the following directory structure but you can use whatever
you want. Just note that I will use these in my examples. Each of
these should have a subdirectory "bin":
You can download MSYS from MinGW's Sourceforge page:
It's under "MSYS Base System". I recommend using MSYS 1.0.11
(MSYS-1.0.11.exe or msysCORE-1.0.11-bin.tar.gz) because that
package includes all the required tools. At least some of the
later versions include only a subset and thus you would need to
download the rest separately. The old version will work fine for
building XZ Utils.
You can use either the .exe or .tar.gz package. I prefer .tar.gz,
because it can be extracted into any directory and later removed
without worrying about uninstallers.
You can download the required packages from MinGW's Sourceforge page:
These version numbers were the latest when I wrote this document, but
you probably should pick the latest versions:
MinGW Runtime -> mingwrt-3.17-mingw32-dev.tar.gz
MinGW API for MS-Windows -> w32api-3.14-mingw32-dev.tar.gz
GNU Binutils -> binutils-2.20-1-bin.tar.gz
GCC Version 4 -> gcc-full-4.4.0-mingw32-bin-2.tar.lzma
The full GCC package is quite big, but if you want a smaller
download, you will need to download more than one file, so I'm
using the full package in this document for simplicity.
Extract the packages in the above order, possibly overwriting files
from packages that were extracted earlier.
Installing MinGW-w32 or MinGW-w64
You can find the latest MinGW-w32 and MinGW-w64 builds here:
Locate the appropriate files:
Toolchains targeting Win32 -> mingw-w32-*-mingw*.zip
Toolchains targeting Win64 -> mingw-w64-*-mingw*.zip
I don't know what is the most recommended one. I used sezero's
versions from "Personal Builds", since they seemed to have
a stable GCC (judging from the GCC version number only).
If you will install both MinGW-w32 and MinGW-w64, remember to
extract them into different directories.
Building XZ Utils
Start MSYS by going to the directory C:\devel\tools\msys and running
msys.bat there (double-click or use command prompt). It will start
at "home" directory, which is C:\devel\tools\msys\home\YourUserName.
If you have xz-5.x.x.tar.gz in C:\devel, you should be able to build
it now with the following commands:
tar xzf xz-5.x.x.tar.gz
If you used some other directory than C:\devel\tools for the build
tools, edit the variables near the beginning of build.bash first.
If you want to build manually, read the buildit() function in
build.bash. Look especially at the latter configure invocation.
Be patient. Running configure and other scripts used by the build
system is (very) slow under Windows.
Using a snapshot from the Git repository
To use a snapshot, the build system files need to be generated with
autogen.sh or "autoreconf -fi" before trying to build using the the
above build instructions. You can install the relevant extra packages
from MinGW or use Cygwin or use e.g. a GNU/Linux system to create a
source package with the required build system files.