The XBPS source packages collection
This repository contains the XBPS source packages collection to build binary packages for the Void Linux distribution.
xbps-src script will fetch and compile the sources, and install its
files into a
fake destdir to generate XBPS binary packages that can be installed
or queried through the
xbps-query(8) utilities, respectively.
xbps-src utility uses
xbps-uchroot(8) to build packages in lightweight linux
containers through the use of
namespaces, that means that processes and bind mounts
are isolated (among others).
- GNU bash
- xbps >= 0.43.1
A privileged group is required to be able to execute
xbps-uchroot(8), by default in void
Quick setup in Void
Add your user to the
# usermod -a -G xbuilder <user>
void-packages git repository, install the bootstrap packages:
$ git clone git://github.com/voidlinux/void-packages.git $ cd void-packages $ ./xbps-src binary-bootstrap
$ ./xbps-src -h
to see all available targets/options and start building any available package
Install the bootstrap packages
bootstrap packages are a set of packages required to build any available source package in a container. There are two methods to install the
bootstrap: all bootstrap packages will be built from scratch.
binary-bootstrap: the bootstrap binary packages are downloaded via XBPS repositories.
If you don't want to waste your time building everything from scratch probably it's better to use
etc/defaults.conf file contains the possible settings that can be overrided
etc/conf configuration file for the
xbps-src utility; if that file
does not exist, will try to read configuration settings from
If you want to customize default
LDFLAGS, don't override
those defined in
etc/defaults.conf, append to them instead via
$ echo 'XBPS_CFLAGS+=" your flags here "' >> etc/conf $ echo 'XBPS_LDFLAGS+=" your flags here "' >> etc/conf
etc/defaults.virtual file contains the default replacements for virtual packages,
used as dependencies in the source packages tree.
If you want to customize those replacements, copy
and edit it accordingly to your needs.
The following directory tree is used with a default configuration file:
/void-packages |- common |- etc |- srcpkgs | |- xbps | |- template | |- hostdir | |- binpkgs ... | |- ccache-<arch> ... | |- distcc-<arch> ... | |- repocache ... | |- sources ... | |- masterdir | |- builddir -> ... | |- destdir -> ... | |- host -> bind mounted from <hostdir> | |- void-packages -> bind mounted from <void-packages>
The description of these directories is as follows:
masterdir: master directory to be used as rootfs to build/install packages.
builddir: to unpack package source tarballs and where packages are built.
destdir: to install packages, aka fake destdir.
hostdir/ccache-<arch>: to store ccache data if the
XBPS_CCACHEoption is enabled.
hostdir/distcc-<arch>: to store distcc data if the
XBPS_DISTCCoption is enabled.
hostdir/repocache: to store binary packages from remote repositories.
hostdir/sources: to store package sources.
hostdir/binpkgs: local repository to store generated binary packages.
The simplest form of building package is accomplished by running the
pkg target in
$ cd void-packages $ ./xbps-src pkg <pkgname>
When the package and its required dependencies are built, the binary packages will be created
and registered in the default local repository at
hostdir/binpkgs; the path to this local repository can be added to
any xbps configuration file (see xbps.d(5)) or by explicitly appending them via cmdline, i.e:
$ xbps-install --repository=/path/to/hostdir/binpkgs ... $ xbps-query --repository=/path/to/hostdir/binpkgs ...
Currently xbps expects absolute path when using the
--repositoryoption. This has been corrected in the 0.44 version.
By default xbps-src will try to resolve package dependencies in this order:
- If dependency exists in the local repository, use it (
- If dependency exists in a remote repository, use it.
- If dependency exists in a source package, use it.
It is possible to avoid using remote repositories completely by using the
The default local repository may contain multiple sub-repositories:
Package build options
The supported build options for a source package can be shown with
$ ./xbps-src show-options foo
Build options can be enabled with the
-o flag of
$ ./xbps-src -o option,option1 pkg foo
Build options can be disabled by prefixing them with
$ ./xbps-src -o ~option,~option1 pkg foo
Both ways can be used together to enable and/or disable multiple options
at the same time with
$ ./xbps-src -o option,~option1,~option2 pkg foo
The build options can also be shown for binary packages via
$ xbps-query -R --property=build-options foo
NOTE: if you build a package with a custom option, and that package is available in an official void repository, an update will ignore those options. Put that package on
xbps-pkgdb -m hold footo ignore updates with
xbps-install -u. Once the package is on
hold, the only way to update it is by declaring it explicitely:
xbps-install -u foo.
Permanent global package build options can be set via
XBPS_PKG_OPTIONS variable in the
etc/conf configuration file. Per package build options can be set via
dashes, those should be replaced by
The list of supported package build options and its description is defined in the
common/options.description file or in the
Sharing and signing your local repositories
To share a local repository remotely it's mandatory to sign it and the binary packages
stored on it. This is accomplished with the
First a RSA key must be created with
$ openssl genrsa -des3 -out privkey.pem 4096
$ ssh-keygen -t rsa -b 4096 -f privkey.pem
Only RSA keys in PEM format are currently accepted by xbps.
Once the RSA private key is ready you can use it to sign the repository:
$ xbps-rindex --sign --signedby "I'm Groot" --privkey privkey.pem $PWD/hostdir/binpkgs
If --privkey is unset, it defaults to
If the RSA key was protected with a passphrase you'll have to type it, or alternatively set
it via the
XBPS_PASSPHRASE environment variable.
Once the binary packages have been signed, check the repository contains the appropiate
$ xbps-query --repository=$PWD/hostdir/binpkgs -vL ...
Each time a binary package is created, the repository must be signed as explained above with the difference that only those new packages will be signed.
It is not possible to sign a repository with multiple RSA keys.
Rebuilding and overwriting existing local packages
If for whatever reason a package has been built and it is available in your local repository
and you have to rebuild it without bumping its
revision fields, it is possible
to accomplish this task easily with
$ ./xbps-src -f pkg xbps
Reinstalling this package in your target
rootdir can be easily done too:
$ xbps-install --repository=/path/to/local/repo -yff xbps-0.25_1
Please note that the
package expressionmust be properly defined to explicitly pick up the package from the desired repository.
Enabling distcc for distributed compilation
Setup the slaves (machines that will compile the code):
# xbps-install -Sy distcc
Enable and start the
# ln -s /etc/sv/distccd /var/service
In the host (machine that executes xbps-src) enable the following settings in the
XBPS_DISTCC=yes XBPS_DISTCC_HOSTS="192.168.2.101 192.168.2.102"
Cross compiling packages for a target architecture
xbps-src can cross build packages for some target architectures with a cross compiler. The supported target list is the following:
- i686 - for Linux i686 GNU.
- i686-musl - for Linux i686 Musl libc.
- armv6hf - for Linux ARMv6 EABI5 (LE Hard Float / GNU)
- armv6hf-musl - for Linux ARMv6 EABI5 (LE Hard Float / Musl libc)
- armv7hf - for Linux ARMv7 EABI5 (LE Hard Float / GNU)
- armv7hf-musl - for Linux ARMv7 EABI5 (LE Hard Float / Musl libc)
- mips - for Linux MIPS o32 (BE Soft Float / GNU)
- mipsel - for Linux MIPS o32 (LE Soft Float / GNU)
- x86_64-musl - for x86_64 Musl/Linux
If a source package has been adapted to be cross buildable
xbps-src will automatically build the binary package(s) with a simple command:
$ ./xbps-src -a <target> pkg <pkgname>
If the build for whatever reason fails, might be a new build issue or simply because it hasn't been adapted to be cross compiled.
Using xbps-src in a foreign linux distribution
xbps-src can be used in any recent linux distribution matching the cpu architecture.
To use xbps-src in your linux distribution use the following instructions. Let's start downloading the xbps static binaries:
$ wget http://repo.voidlinux.eu/static/xbps-static-latest.<arch>-musl.tar.xz $ mkdir ~/XBPS $ tar xvf xbps-static-latest.<arch>.tar.xz -C ~/XBPS $ export PATH=~/XBPS/usr/sbin:$PATH
A privileged group is required to be able to chroot with xbps-src, by default it's set to the
xbuilder group, change this to your desired group:
# chown root:<group> ~/XBPS/usr/sbin/xbps-uchroot.static # chmod 4750 ~/XBPS/usr/sbin/xbps-uchroot.static
void-packages git repository:
$ git clone git://github.com/voidlinux/void-packages
xbps-src should be fully functional; just start the
bootstrap process, i.e:
$ ./xbps-src binary-bootstrap
The default masterdir is created in the current working directory, i.e
Remaking the masterdir
If for some reason you must update xbps-src and the
bootstrap-update target is not enough, it's possible to recreate a masterdir with two simple commands (please note that
zap keeps your
ccache/distcc/host directories intact):
$ ./xbps-src zap $ ./xbps-src binary-bootstrap
Keeping your masterdir uptodate
Sometimes the bootstrap packages must be updated to the latest available version in repositories, this is accomplished with the
$ ./xbps-src bootstrap-update
Building 32bit packages on x86_64
Two ways are available to build 32bit packages on x86_64:
- cross compilation mode
- native mode with a 32bit masterdir
The first mode (cross compilation) is as easy as:
$ ./xbps-src -a i686 pkg ...
The second mode (native) needs a new x86
$ ./xbps-src -m masterdir-x86 binary-bootstrap i686 $ ./xbps-src -m masterdir-x86 ...
Building packages natively for the musl C library
A native build environment is required to be able to cross compile the bootstrap packages for the musl C library; this is accomplished by installing them via
$ ./xbps-src binary-bootstrap
Now cross compile
base-chroot-musl for your native architecture:
$ ./xbps-src -a x86_64-musl pkg base-chroot-musl
Wait until all packages are built and when ready, prepare a new masterdir with the musl packages:
$ ./xbps-src -m masterdir-x86_64-musl binary-bootstrap x86_64-musl
Your new masterdir is now ready to build natively packages for the musl C library. Try:
$ ./xbps-src -m masterdir-x86_64-musl chroot $ ldd
To see if the musl C dynamic linker is working as expected.