Provided by: dpkg-dev_1.21.1ubuntu2.3_all 
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 calls gpg (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). 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
-m, --release-by=maintainer-address
-e, --build-by=maintainer-address
Passed unchanged 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]
Number of jobs allowed to be run simultaneously, 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, equivalent to the make(1) option of the same name (since dpkg
1.14.7, long option since dpkg 1.18.8). Will add itself to the MAKEFLAGS environment
variable, which 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) regardless of their support for parallel builds, which might
cause build failures. Also adds parallel=jobs or parallel to the DEB_BUILD_OPTIONS
environment variable which allows debian/rules files to use this information for their
own purposes. The -j 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
option except that it does not set the MAKEFLAGS environment variable, and as such it
is safer to use with any package including those that are not parallel-build safe.
auto is the default behavior (since dpkg 1.18.11). Setting the number of jobs to 1
will restore a serial behavior.
-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.
-p, --sign-command=sign-command
When dpkg-buildpackage needs to execute GPG to sign a source control (.dsc) file or a
.changes file it will run sign-command (searching the PATH if necessary) instead of
gpg (long option since dpkg 1.18.8). sign-command will get all the arguments that gpg
would have gotten. sign-command should not contain spaces or any other shell
metacharacters.
-k, --sign-key=key-id
Specify a key-ID to use when signing packages (long option since dpkg 1.18.8).
-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 and .dsc files (since dpkg 1.17.2).
Overridden by the --sign-key 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
dpkg-source(1), dpkg-architecture(1), dpkg-buildflags(1), dpkg-genbuildinfo(1), dpkg-
genchanges(1), fakeroot(1), lintian(1), gpg(1).