Provided by: dpkg-dev_1.18.4ubuntu1.7_all bug


       dpkg-buildpackage - build binary or source packages from sources


       dpkg-buildpackage [option...]


       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  is

       3. If  a  specific  target has been selected with the -T or --target option, it calls that
          target and stops  here.  Otherwise  it  runs  the  preclean  hook  and  calls  fakeroot
          debian/rules clean to clean the build-tree (unless -nc is specified).

       4. It runs the source hook and calls dpkg-source -b to generate the source package (unless
          a binary-only build has been requested with -b, -B or -A).

       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 -S). Note that build-target  and  binary-target  are  either  build  and
          binary  (default  case, or if -b is specified), or build-arch and binary-arch (if -B or
          -G are specified), or build-indep and binary-indep (if -A or -g are specified).

       6. It runs the changes hook and calls dpkg-genchanges to generate a .changes  file.   Many
          dpkg-buildpackage options are forwarded to dpkg-genchanges.

       7. It  runs the postclean hook and if -tc is specified, it will call fakeroot debian/rules
          clean again.

       8. It calls dpkg-source --after-build.

       9. 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).

          It  runs  the sign hook and calls gpg2 or gpg to sign the .dsc file (if any, unless -us
          is specified or on UNRELEASED builds), and the .changes file (unless -uc  is  specified
          or on UNRELEASED builds).

          It runs the done hook.


       -g     Specifies  a  build  limited to source and architecture independent packages (since
              dpkg 1.17.11).  Passed to dpkg-genchanges.

       -G     Specifies a build limited to source and architecture specific packages (since  dpkg
              1.17.11).  Passed to dpkg-genchanges.

       -b     Specifies  a binary-only build, no source files are to be built and/or distributed.
              Passed to dpkg-genchanges.

       -B     Specifies a binary-only build, limited to architecture dependent packages.   Passed
              to dpkg-genchanges.

       -A     Specifies a binary-only build, limited to architecture independent packages. Passed
              to dpkg-genchanges.

       -S     Specifies a source-only build, no binary packages  need  to  be  made.   Passed  to
              dpkg-genchanges.   Note:  if  what  you  want  is  simply  to (re-)build the source
              package, using dpkg-source is always better  as  it  does  not  require  any  build
              dependencies to be installed to be able to call the clean target.

       -F     Specifies a normal full build, binary and source packages will be built (since dpkg
              1.15.8).  This is the same as the default case when no build option is specified.

       --target target
              Calls debian/rules target after having setup the build environment  and  stops  the
              package  build  process here (since dpkg 1.15.0).  If --as-root is also given, then
              the command is executed as root (see -r).  Note  that  official  targets  that  are
              required to be run as root by the Debian policy do not need this option.

              Only  meaningful  together  with  --target  (since dpkg 1.15.0).  Requires that the
              target be run with root rights.

              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.

              Specify  the  profile(s)  we  build, as a comma-separated list (since dpkg 1.17.2).
              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.

              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).  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 an unlimited number.

              This  option (since dpkg 1.18.2) 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.

       -D     Check  build  dependencies and conflicts; abort if unsatisfied. This is the default

       -d     Do not check build dependencies and conflicts.

              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.

       -nc    Do not clean the source tree.  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).

       -tc    Clean  the  source  tree  (using  gain-root-command  debian/rules  clean) after the
              package has been built.

              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.
              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

              Building  a Debian package usually involves invoking debian/rules as a command with
              several standard parameters (since dpkg 1.14.17).  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).

              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.

              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.

              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

              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 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

              %p     The source package name.

              %v     The source package version.

              %s     The source package version (without the epoch).

              %u     The upstream version.

              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 gpg2 or gpg. sign-command will get all the arguments that gpg2 or gpg would have
              gotten. sign-command should not contain spaces or any other shell metacharacters.

              Specify a key-ID to use when signing packages.

       -us    Do not sign the source package.

       -uc    Do not sign the .changes file.

              Force the signing of the resulting files (since dpkg 1.17.0), regardless of -us  or
              -uc or other internal heuristics.

       -z, -Z Passed unchanged to dpkg-source. See its manual page.

              Pass option opt to dpkg-source (since dpkg 1.15.6).  Can be used multiple times.

              Pass  option  opt  to  dpkg-genchanges  (since  dpkg 1.15.6).  Can be used multiple

       --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.

              Show the version and exit.


              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.

              If set, it will be used to sign the .changes and .dsc files  (since  dpkg  1.17.2).
              Overridden by the -k option.

              If set, and containing nocheck the DEB_CHECK_COMMAND variable will be ignored.

              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.

   Reliance on exported environment flags
       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.

   Variables set by dpkg-architecture
       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.


   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,  it will fallback to using the build target if make -f debian/rules -qn build-
       target returns 2 as exit code.


       It should be possible to specify spaces and shell metacharacters and initial arguments for
       gain-root-command and sign-command.


       dpkg-source(1), dpkg-architecture(1), dpkg-buildflags(1), dpkg-genchanges(1), fakeroot(1),
       lintian(1), gpg2(1), gpg(1).