.\" -*- mode: troff; coding: utf-8 -*-
.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
.ie n \{\
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\" ========================================================================
.\"
.IX Title "dpkg-buildtree 1"
.TH dpkg-buildtree 1 2024-01-19 1.22.3 "dpkg suite"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH NAME
dpkg\-buildtree \- helper for build tree operations during package builds
.SH SYNOPSIS
.IX Header "SYNOPSIS"
\&\fBdpkg-buildtree\fR [\fIoption\fR...] [\fIcommand\fR]
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBdpkg-buildtree\fR is a tool to perform common operations on the build tree
for a source package.
.PP
This program was introduced in dpkg 1.22.3.
.SH COMMANDS
.IX Header "COMMANDS"
.IP \fBclean\fR 4
.IX Item "clean"
Removes all artifacts generated during a build by the various dpkg tools,
and pathnames used or controlled by dpkg tools that are safe to clean.
These files are used to track state between package build runs,
and are in many cases internal implementation details the packager should
not be concerned about,
or are staging directories containing build artifacts.
.IP \fB\-\-help\fR 4
.IX Item "--help"
Show the usage message and exit.
.IP \fB\-\-version\fR 4
.IX Item "--version"
Show the version and exit.
.SH FILES
.IX Header "FILES"
.SS "Cleaned files"
.IX Subsection "Cleaned files"
.IP \fIdebian/files\fR 4
.IX Item "debian/files"
.PD 0
.IP \fIdebian/files.new\fR 4
.IX Item "debian/files.new"
.PD
Files generated by \fBdpkg\-distaddfile\fR\|(1).
.IP \fIdebian/substvars\fR 4
.IX Item "debian/substvars"
.PD 0
.IP \fIdebian/substvars.new\fR 4
.IX Item "debian/substvars.new"
.PD
Files generated by \fBdpkg\-shlibdeps\fR\|(1).
.IP \fIdebian/tmp\fR 4
.IX Item "debian/tmp"
Staging directory containing the contents to be used when creating a package.
Both \fBdpkg\-gencontrol\fR\|(1) and \fBdpkg\-gensymbols\fR\|(1) generate files within.
.SH EXAMPLES
.IX Header "EXAMPLES"
.SS "Usage in debian/rules"
.IX Subsection "Usage in debian/rules"
You can call \fBdpkg-buildtree clean\fR from the \fIdebian/rules\fR \fBclean\fR target,
after having performed other necessary cleanups.
.PP
For example for an autoconf-like build system:
.Sp
.Vb 3
\&  clean:
\&        [ ! \-f Makefile ] || $(MAKE) distclean
\&        dpkg\-buildtree clean
.Ve