dpkg-buildpackage(1) dpkg suite dpkg-buildpackage(1)
NAME
dpkg-buildpackage - build binary or source packages from sources
SYNOPSIS
dpkg-buildpackage [option...]
DESCRIPTION
dpkg-buildpackage is a program that automates the process of building a Debian package. It consists of the following steps:
1. It prepares the build environment by setting various environment variables (see ENVIRONMENT), runs the init hook, and
calls dpkg-source --before-build (unless -T or --target has been used).
2. It checks that the build-dependencies and build-conflicts are satisfied (unless -d or --no-check-builddeps is
specified).
3. If one or more specific targets have been selected with the -T or --target option, it calls those targets and stops
here. Otherwise it runs the preclean hook and calls fakeroot debian/rules clean to clean the build-tree (unless -nc or
--no-pre-clean is specified).
4. It runs the source hook and calls dpkg-source -b to generate the source package (if a source build has been requested
with --build or equivalent options).
5. It runs the build hook and calls debian/rules build-target, then runs the binary hook followed by fakeroot debian/rules
binary-target (unless a source-only build has been requested with --build=source or equivalent options). Note that
build-target and binary-target are either build and binary (default case, or if an any and all build has been requested
with --build or equivalent options), or build-arch and binary-arch (if an any and not all build has been requested with
--build or equivalent options), or build-indep and binary-indep (if an all and not any build has been requested with
--build or equivalent options).
6. It runs the buildinfo hook and calls dpkg-genbuildinfo to generate a .buildinfo file. Several dpkg-buildpackage options
are forwarded to dpkg-genbuildinfo.
7. It runs the changes hook and calls dpkg-genchanges to generate a .changes file. The name of the .changes file will
depend on the type of build and will be as specific as necessary but not more; for a build that includes any the name
will be source-name_binary-version_arch.changes, or otherwise for a build that includes all the name will be source-
name_binary-version_all.changes, or otherwise for a build that includes source the name will be source-name_source-
version_source.changes. Many dpkg-buildpackage options are forwarded to dpkg-genchanges.
8. It runs the postclean hook and if -tc or --post-clean is specified, it will call fakeroot debian/rules clean again.
9. It calls dpkg-source --after-build.
10. It runs the check hook and calls a package checker for the .changes file (if a command is specified in DEB_CHECK_COMMAND
or with --check-command).
11. It runs the sign hook and signs using the OpenPGP backend (as long as it is not an UNRELEASED build, or --no-sign is
specified) to sign the .dsc file (if any, unless -us or --unsigned-source is specified), the .buildinfo file (unless
-ui, --unsigned-buildinfo, -uc or --unsigned-changes is specified) and the .changes file (unless -uc or
--unsigned-changes is specified).
12. It runs the done hook.
OPTIONS
All long options can be specified both on the command line and in the dpkg-buildpackage system and user configuration files.
Each line in the configuration file is either an option (exactly the same as the command line option but without leading
hyphens) or a comment (if it starts with a ‘#’).
--build=type
Specifies the build type from a comma-separated list of components (since dpkg 1.18.5). All the specified components
get combined to select the single build type to use, which implies a single build run with a single .changes file
generated. Passed to dpkg-genchanges.
The allowed values are:
source
Builds the source package.
Note: When using this value standalone and if what you want is simply to (re-)build the source package from a clean
source tree, using dpkg-source directly is always a better option as it does not require any build dependencies to
be installed which are otherwise needed to be able to call the clean target.
any Builds the architecture specific binary packages.
all Builds the architecture independent binary packages.
binary
Builds the architecture specific and independent binary packages. This is an alias for any,all.
full
Builds everything. This is an alias for source,any,all, and the same as the default case when no build option is
specified.
-g Equivalent to --build=source,all (since dpkg 1.17.11).
-G Equivalent to --build=source,any (since dpkg 1.17.11).
-b Equivalent to --build=binary or --build=any,all.
-B Equivalent to --build=any.
-A Equivalent to --build=all.
-S Equivalent to --build=source.
-F Equivalent to --build=full, --build=source,binary or --build=source,any,all (since dpkg 1.15.8).
--target=target[,...]
--target target[,...]
-T, --rules-target=target[,...]
Calls debian/rules target once per target specified, after having setup the build environment (except for calling dpkg-
source --before-build), and stops the package build process here (since dpkg 1.15.0, long option since dpkg 1.18.8,
multi-target support since dpkg 1.18.16). If --as-root is also given, then the command is executed as root (see
--root-command). Note that known targets that are required to be run as root do not need this option (i.e. the clean,
binary, binary-arch and binary-indep targets).
--as-root
Only meaningful together with --target (since dpkg 1.15.0). Requires that the target be run with root rights.
-si
-sa
-sd
-vversion
-Cchanges-description
-mmaintainer-address
-emaintainer-address
Passed unchanged to dpkg-genchanges. See its manual page.
--build-by=maintainer-address
--source-by=maintainer-address (since dpkg 1.21.10)
Pass as -m to dpkg-genchanges. See its manual page.
--release-by=maintainer-address
--changed-by=maintainer-address (since dpkg 1.21.10)
Pass as -e to dpkg-genchanges. See its manual page.
-a, --host-arch architecture
Specify the Debian architecture we build for (long option since dpkg 1.17.17). The architecture of the machine we build
on is determined automatically, and is also the default for the host machine.
-t, --host-type gnu-system-type
Specify the GNU system type we build for (long option since dpkg 1.17.17). It can be used in place of --host-arch or as
a complement to override the default GNU system type of the host Debian architecture.
--target-arch architecture
Specify the Debian architecture the binaries built will build for (since dpkg 1.17.17). The default value is the host
machine.
--target-type gnu-system-type
Specify the GNU system type the binaries built will build for (since dpkg 1.17.17). It can be used in place of
--target-arch or as a complement to override the default GNU system type of the target Debian architecture.
-P, --build-profiles=profile[,...]
Specify the profile(s) we build, as a comma-separated list (since dpkg 1.17.2, long option since dpkg 1.18.8). The
default behavior is to build for no specific profile. Also sets them (as a space separated list) as the
DEB_BUILD_PROFILES environment variable which allows, for example, debian/rules files to use this information for
conditional builds.
-j, --jobs[=jobs|auto]
Specifies the number of jobs allowed to be run simultaneously (since dpkg 1.14.7, long option since dpkg 1.18.8). The
number of jobs matching the number of online processors if auto is specified (since dpkg 1.17.10), or unlimited number
if jobs is not specified. The default behavior is auto (since dpkg 1.18.11) in non-forced mode (since dpkg 1.21.10),
and as such it is always safer to use with any package including those that are not parallel-build safe. Setting the
number of jobs to 1 will restore serial execution.
Will add parallel=jobs or parallel to the DEB_BUILD_OPTIONS environment variable which allows debian/rules files to opt-
in to use this information for their own purposes. The jobs value will override the parallel=jobs or parallel option in
the DEB_BUILD_OPTIONS environment variable. Note that the auto value will get replaced by the actual number of
currently active processors, and as such will not get propagated to any child process. If the number of online
processors cannot be inferred then the code will fallback to using serial execution (since dpkg 1.18.15), although this
should only happen on exotic and unsupported systems.
-J, --jobs-try[=jobs|auto]
This option (since dpkg 1.18.2, long option since dpkg 1.18.8) is equivalent to the -j above.
Since the behavior for -j changed in dpkg 1.21.10 to the opt-in mode, you can use this option instead if you need to
guarantee semantics across dpkg release series.
--jobs-force[=jobs|auto]
This option (since dpkg 1.21.10) is equivalent to the --jobs option except that it will enable forced parallel mode, by
adding the make -j option with the computed number of parallel jobs to the MAKEFLAGS environment variable.
This should cause all subsequent make invocations to inherit the option, thus forcing the parallel setting on the
packaging (and possibly the upstream build system if that uses make(1)) regardless of their support for parallel builds,
which might cause build failures.
Note: Any Makefile that is not parallel-safe should be considered to be buggy. These should either be made parallel-
safe, or marked as not being safe with the make(1) .NOTPARALLEL target.
-D, --check-builddeps
Check build dependencies and conflicts; abort if unsatisfied (long option since dpkg 1.18.8). This is the default
behavior.
-d, --no-check-builddeps
Do not check build dependencies and conflicts (long option since dpkg 1.18.8).
--ignore-builtin-builddeps
Do not check built-in build dependencies and conflicts (since dpkg 1.18.2). These are the distribution specific
implicit build dependencies usually required in a build environment, the so called Build-Essential package set.
--rules-requires-root
Do not honor the Rules-Requires-Root field, falling back to its legacy default value (since dpkg 1.19.1).
-nc, --no-pre-clean
Do not clean the source tree before building (long option since dpkg 1.18.8). Implies -b if nothing else has been
selected among -F, -g, -G, -B, -A or -S. Implies -d with -S (since dpkg 1.18.0).
--pre-clean
Clean the source tree before building (since dpkg 1.18.8). This is the default behavior.
-tc, --post-clean
Clean the source tree (using gain-root-command debian/rules clean) after the package has been built (long option since
dpkg 1.18.8).
--no-post-clean
Do not clean the source tree after the package has been built (since dpkg 1.19.1). This is the default behavior.
--sanitize-env
Sanitize the build environment (since dpkg 1.20.0). This will reset or remove environment variables, umask, and any
other process attributes that might otherwise adversely affect the build of packages. Because the official entry point
to build packages is debian/rules, packages cannot rely on these settings being in place, and thus should work even when
they are not. What to sanitize is vendor specific.
-r, --root-command=gain-root-command
When dpkg-buildpackage needs to execute part of the build process as root, it prefixes the command it executes with
gain-root-command if one has been specified (long option since dpkg 1.18.8). Otherwise, if none has been specified,
fakeroot will be used by default, if the command is present. gain-root-command should start with the name of a program
on the PATH and will get as arguments the name of the real command to run and the arguments it should take. gain-root-
command can include parameters (they must be space-separated) but no shell metacharacters. gain-root-command might
typically be fakeroot, sudo, super or really. su is not suitable, since it can only invoke the user's shell with -c
instead of passing arguments individually to the command to be run.
-R, --rules-file=rules-file
Building a Debian package usually involves invoking debian/rules as a command with several standard parameters (since
dpkg 1.14.17, long option since dpkg 1.18.8). With this option it's possible to use another program invocation to build
the package (it can include space separated parameters). Alternatively it can be used to execute the standard rules
file with another make program (for example by using /usr/local/bin/make -f debian/rules as rules-file).
--check-command=check-command
Command used to check the .changes file itself and any artifact built referenced in the file (since dpkg 1.17.6). The
command should take the .changes pathname as an argument. This command will usually be lintian.
--check-option=opt
Pass option opt to the check-command specified with DEB_CHECK_COMMAND or --check-command (since dpkg 1.17.6). Can be
used multiple times.
--hook-hook-name=hook-command
Set the specified shell code hook-command as the hook hook-name, which will run at the times specified in the run steps
(since dpkg 1.17.6). The hooks will always be executed even if the following action is not performed (except for the
binary hook). All the hooks will run in the unpacked source directory.
Note: Hooks can affect the build process, and cause build failures if their commands fail, so watch out for unintended
consequences.
The current hook-name supported are:
init preclean source build binary buildinfo changes postclean check sign done
The hook-command supports the following substitution format string, which will get applied to it before execution:
%% A single % character.
%a A boolean value (0 or 1), representing whether the following action is being performed.
%p The source package name.
%v The source package version.
%s The source package version (without the epoch).
%u The upstream version.
--buildinfo-file=filename
Set the filename for the generated .buildinfo file (since dpkg 1.21.0).
--buildinfo-option=opt
Pass option opt to dpkg-genbuildinfo (since dpkg 1.18.11). Can be used multiple times.
--sign-backend=sign-backend
Specify an OpenPGP backend interface to use when invoking the sign-command (since dpkg 1.21.10).
The default is auto, where the best current backend available will be used. The specific OpenPGP backends supported in
order of preference are:
sop (any conforming Stateless OpenPGP implementation)
sq (from Sequoia-PGP)
gpg (from GnuPG)
-p, --sign-command=sign-command
When dpkg-buildpackage needs to execute an OpenPGP backend command to sign a source control (.dsc) file or a .changes
file it will run sign-command (searching the PATH if necessary) instead of the default or auto-detected backend command
(long option since dpkg 1.18.8). sign-command will get all the arguments defined by the --sign-backend. sign-command
should not contain spaces or any other shell metacharacters.
-k, --sign-keyid=key-id
--sign-key=key-id
Specify an OpenPGP key-ID (either a fingerprint or a user-ID) for the secret key to use when signing packages
(--sign-key since dpkg 1.18.8, --sign-keyid since dpkg 1.21.10).
--sign-keyfile=key-file
Specify an OpenPGP key-file containing the secret key to use when signing packages (since dpkg 1.21.10).
Note: For security reasons the key-file is best kept locked with a password.
-us, --unsigned-source
Do not sign the source package (long option since dpkg 1.18.8).
-ui, --unsigned-buildinfo
Do not sign the .buildinfo file (since dpkg 1.18.19).
-uc, --unsigned-changes
Do not sign the .buildinfo and .changes files (long option since dpkg 1.18.8).
--no-sign
Do not sign any file, this includes the source package, the .buildinfo file and the .changes file (since dpkg 1.18.20).
--force-sign
Force the signing of the resulting files (since dpkg 1.17.0), regardless of -us, --unsigned-source, -ui,
--unsigned-buildinfo, -uc, --unsigned-changes or other internal heuristics.
-sn
-ss
-sA
-sk
-su
-sr
-sK
-sU
-sR
-i, --diff-ignore[=regex]
-I, --tar-ignore[=pattern]
-z, --compression-level=level
-Z, --compression=compressor
Passed unchanged to dpkg-source. See its manual page.
--source-option=opt
Pass option opt to dpkg-source (since dpkg 1.15.6). Can be used multiple times.
--changes-file=filename
Set the filename for the generated .changes file (since dpkg 1.21.0).
--changes-option=opt
Pass option opt to dpkg-genchanges (since dpkg 1.15.6). Can be used multiple times.
--admindir=dir
--admindir dir
Change the location of the dpkg database (since dpkg 1.14.0). The default location is /var/lib/dpkg.
-?, --help
Show the usage message and exit.
--version
Show the version and exit.
ENVIRONMENT
External environment
DEB_CHECK_COMMAND
If set, it will be used as the command to check the .changes file (since dpkg 1.17.6). Overridden by the
--check-command option.
DEB_SIGN_KEYID
If set, it will be used to sign the .changes, .buildinfo and .dsc files (since dpkg 1.17.2). Overridden by the
--sign-key option.
DEB_SIGN_KEYFILE
If set, it will be used to sign the .changes, .buildinfo and .dsc files (since dpkg 1.21.10). Overridden by the
--sign-keyfile option.
DEB_BUILD_OPTIONS
If set, it will contain a space-separated list of options that might affect the build process in debian/rules, and the
behavior of some dpkg commands.
With nocheck the DEB_CHECK_COMMAND variable will be ignored. With parallel=N the parallel jobs will be set to N,
overridden by the --jobs-try option.
DEB_BUILD_PROFILES
If set, it will be used as the active build profile(s) for the package being built (since dpkg 1.17.2). It is a space
separated list of profile names. Overridden by the -P option.
DPKG_COLORS
Sets the color mode (since dpkg 1.18.5). The currently accepted values are: auto (default), always and never.
DPKG_NLS
If set, it will be used to decide whether to activate Native Language Support, also known as internationalization (or
i18n) support (since dpkg 1.19.0). The accepted values are: 0 and 1 (default).
Internal environment
Even if dpkg-buildpackage exports some variables, debian/rules should not rely on their presence and should instead use the
respective interface to retrieve the needed values, because that file is the main entry point to build packages and running
it standalone should be supported.
DEB_BUILD_*
DEB_HOST_*
DEB_TARGET_*
dpkg-architecture is called with the -a and -t parameters forwarded. Any variable that is output by its -s option is
integrated in the build environment.
DEB_RULES_REQUIRES_ROOT
This variable is set to the value obtained from the Rules-Requires-Root field or from the command-line. When set, it
will be a valid value for the Rules-Requires-Root field. It is used to notify debian/rules whether the
rootless-builds.txt specification is supported.
DEB_GAIN_ROOT_CMD
This variable is set to gain-root-command when the field Rules-Requires-Root is set to a value different to no and
binary-targets.
SOURCE_DATE_EPOCH
This variable is set to the Unix timestamp since the epoch of the latest entry in debian/changelog, if it is not already
defined.
FILES
/etc/dpkg/buildpackage.conf
System wide configuration file
$XDG_CONFIG_HOME/dpkg/buildpackage.conf or
$HOME/.config/dpkg/buildpackage.conf
User configuration file.
NOTES
Compiler flags are no longer exported
Between dpkg 1.14.17 and 1.16.1, dpkg-buildpackage exported compiler flags (CFLAGS, CXXFLAGS, FFLAGS, CPPFLAGS and LDFLAGS)
with values as returned by dpkg-buildflags. This is no longer the case.
Default build targets
dpkg-buildpackage is using the build-arch and build-indep targets since dpkg 1.16.2. Those targets are thus mandatory. But
to avoid breakages of existing packages, and ease the transition, if the source package does not build both architecture
independent and dependent binary packages (since dpkg 1.18.8) it will fallback to use the build target if make -f
debian/rules -qn build-target returns 2 as exit code.
BUGS
It should be possible to specify spaces and shell metacharacters and initial arguments for gain-root-command and sign-
command.
SEE ALSO
/usr/share/doc/dpkg/spec/rootless-builds.txt, dpkg-source(1), dpkg-architecture(1), dpkg-buildflags(1), dpkg-
genbuildinfo(1), dpkg-genchanges(1), fakeroot(1), lintian(1),
<https://datatracker.ietf.org/doc/draft-dkg-openpgp-stateless-cli/>, sq(1), gpg(1).
1.21.21 2023-03-02 dpkg-buildpackage(1)