<item><qref id="sourcebinarydeps"><tt>Build-Depends</tt> et al</qref></item>
<item><qref id="f-Standards-Version"><tt>Standards-Version</tt></qref> (recommended)</item>
<item><qref id="f-Homepage"><tt>Homepage</tt></qref></item>
+ <item><qref id="f-VCS-fields"><tt>Vcs-Browser</tt>, <tt>Vcs-Git</tt>, et al.</qref></item>
</list>
</p>
<item><qref id="binarydeps"><tt>Depends</tt> et al</qref></item>
<item><qref id="f-Description"><tt>Description</tt></qref> (mandatory)</item>
<item><qref id="f-Homepage"><tt>Homepage</tt></qref></item>
+ <item><qref id="built-using"><tt>Built-Using</tt></qref></item>
</list>
</p>
<item><qref id="f-Maintainer"><tt>Maintainer</tt></qref> (mandatory)</item>
<item><qref id="f-Description"><tt>Description</tt></qref> (mandatory)</item>
<item><qref id="f-Homepage"><tt>Homepage</tt></qref></item>
+ <item><qref id="built-using"><tt>Built-Using</tt></qref></item>
</list>
</p>
</sect>
<item><qref id="f-Uploaders"><tt>Uploaders</tt></qref></item>
<item><qref id="f-DM-Upload-Allowed"><tt>DM-Upload-Allowed</tt></qref></item>
<item><qref id="f-Homepage"><tt>Homepage</tt></qref></item>
+ <item><qref id="f-VCS-fields"><tt>Vcs-Browser</tt>, <tt>Vcs-Git</tt>, et al.</qref></item>
<item><qref id="f-Standards-Version"><tt>Standards-Version</tt></qref> (recommended)</item>
<item><qref id="sourcebinarydeps"><tt>Build-Depends</tt> et al</qref></item>
<item><qref id="f-Checksums"><tt>Checksums-Sha1</tt>
details.
</p>
</sect1>
+
+ <sect1 id="f-VCS-fields">
+ <heading>Version Control System (VCS) fields</heading>
+
+ <p>
+ Debian source packages are increasingly developed using VCSs. The
+ purpose of the following fields is to indicate a publicly accessible
+ repository where the Debian source package is developed.
+
+ <taglist>
+ <tag><tt>Vcs-Browser</tt></tag>
+ <item>
+ <p>
+ URL of a web interface for browsing the repository.
+ </p>
+ </item>
+
+ <tag>
+ <tt>Vcs-Arch</tt>, <tt>Vcs-Bzr</tt> (Bazaar), <tt>Vcs-Cvs</tt>,
+ <tt>Vcs-Darcs</tt>, <tt>Vcs-Git</tt>, <tt>Vcs-Hg</tt>
+ (Mercurial), <tt>Vcs-Mtn</tt> (Monotone), <tt>Vcs-Svn</tt>
+ (Subversion)
+ </tag>
+ <item>
+ <p>
+ The field name identifies the VCS. The field's value uses the
+ version control system's conventional syntax for describing
+ repository locations and should be sufficient to locate the
+ repository used for packaging. Ideally, it also locates the
+ branch used for development of new versions of the Debian
+ package.
+ </p>
+ <p>
+ In the case of Git, the value consists of a URL, optionally
+ followed by the word <tt>-b</tt> and the name of a branch in
+ the indicated repository, following the syntax of the
+ <tt>git clone</tt> command. If no branch is specified, the
+ packaging should be on the default branch.
+ </p>
+ <p>
+ More than one different VCS may be specified for the same
+ package.
+ </p>
+ </item>
+ </taglist>
+ </p>
+ </sect1>
</sect>
<sect>
</p>
<p>
- For binary relationship fields, the architecture restriction
+ For binary relationship fields and the <tt>Built-Using</tt>
+ field, the architecture restriction
syntax is only supported in the source package control
file <file>debian/control</file>. When the corresponding binary
package control file is generated, the relationship will either
</taglist>
</p>
</sect>
+
+ <sect id="built-using">
+ <heading>Additional source packages used to build the binary
+ - <tt>Built-Using</tt>
+ </heading>
+
+ <p>
+ Some binary packages incorporate parts of other packages when built
+ but do not have to depend on those packages. Examples include
+ linking with static libraries or incorporating source code from
+ another package during the build. In this case, the source packages
+ of those other packages are a required part of the complete source
+ (the binary package is not reproducible without them).
+ </p>
+
+ <p>
+ A <tt>Built-Using</tt> field must list the corresponding source
+ package for any such binary package incorporated during the build
+ <footnote>
+ <tt>Build-Depends</tt> in the source package is not adequate since
+ it (rightfully) does not document the exact version used in the
+ build.
+ </footnote>,
+ including an "exactly equal" ("=") version relation on the version
+ that was used to build that binary package<footnote>
+ The archive software might reject packages that refer to
+ non-existent sources.
+ </footnote>.
+ </p>
+
+ <p>
+ A package using the source code from the gcc-4.6-source
+ binary package built from the gcc-4.6 source package would
+ have this field in its control file:
+ <example compact="compact">
+Built-Using: gcc-4.6 (= 4.6.0-11)
+ </example>
+ </p>
+
+ <p>
+ A package including binaries from grub2 and loadlin would
+ have this field in its control file:
+ <example compact="compact">
+Built-Using: grub2 (= 1.99-9), loadlin (= 1.6e-1)
+ </example>
+ </p>
+ </sect>
</chapt>
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