NAME

       build-rdeps - find packages that depend on a specific package to build (reverse build
       depends)

SYNOPSIS

       build-rdeps package [package ...]

DESCRIPTION

       build-rdeps searches for all source packages that build-depend on any of the specified
       binary packages.

       The default behaviour is to just `grep` for the given dependencies in the Build-Depends
       field of apt's Sources files.

       If the package dose-extra >= 4.0 is installed, then a more complete reverse build
       dependency computation is carried out. In particular, with dose-extra installed, build-
       rdeps will find transitive reverse dependencies, respect architecture and build profile
       restrictions, take Provides relationships, Conflicts, Pre-Depends, Build-Depends-Arch and
       versioned dependencies into account and correctly resolve multiarch relationships for
       crossbuild reverse dependency resolution. This tends to be a slow process due to the
       complexity of the package interdependencies. If you need to find the reverse dependencies
       of more than one binary package, consider supplying all binary packages as additional
       arguments instead of calling build-rdeps multiple times.

OPTIONS

       -u, --update
           Run apt-get update before searching for build-depends.

       -s, --sudo
           Use sudo when running apt-get update. Has no effect if -u is omitted.

       --distribution
           Select another distribution, which is searched for build-depends.

       --only-main
           Ignore contrib, non-free and non-free-firmware.

       --only-devel
           Consider only development distributions (e.g. unstable, sid).

       --exclude-component
           Ignore the given component (e.g. main, contrib, non-free, non-free-firmware).

       --origin
           Restrict the search to only the specified origin (such as "Debian").

       -m, --print-maintainer
           Print the value of the maintainer field for each package.

       --host-arch
           Explicitly set the host architecture. The default is the value of `dpkg-architecture
           -qDEB_HOST_ARCH`. This option only works if dose-extra >= 4.0 is installed.

       --build-arch
           Explicitly set the build architecture. The default is the value of `dpkg-architecture
           -qDEB_BUILD_ARCH`. This option only works if dose-extra >= 4.0 is installed.

       --no-arch-all, --no-arch-any
           Ignore Build-Depends-Indep or Build-Depends-Arch while looking for reverse
           dependencies.

       --no-ftbfs
           Do not output source packages which have open FTBFS bugs in the selected distribution.
           This functionality uses the debftbfs utility.

       --old
           Force the old simple behaviour without dose-ceve support even if dose-extra >= 4.0 is
           installed.  (This tends to be faster.)

           Notice, that the old behaviour only finds direct dependencies, ignores virtual
           dependencies, does not find transitive dependencies and does not take version
           relationships, architecture restrictions, build profiles or multiarch relationships
           into account.

       -q, --quiet
           Don't print meta information (header, counter). Making it easier to use in scripts.

       -d, --debug
           Run the debug mode

       --help
           Show the usage information.

       --version
           Show the version information.

REQUIREMENTS

       The tool requires apt Sources files to be around for the checked components.  In the
       default case this means that in /var/lib/apt/lists files need to be around for main,
       contrib, non-free and non-free-firmware.

       In practice this means one needs to add one deb-src line for each component, e.g.

       deb-src http://<mirror>/debian <dist> main contrib non-free non-free-firmware

       and run apt-get update afterwards or use the update option of this tool.

LICENSE

       This code is copyright by Patrick Schoenfeld <schoenfeld@debian.org>, all rights reserved.
       This program comes with ABSOLUTELEY NO WARRANTY.  You are free to redistribute this code
       under the terms of the GNU General Public License, version 2 or later.

AUTHOR

       Patrick Schoenfeld <schoenfeld@debian.org>