dpkg 和 apt，让它们相信一些软件包已经安装，即使只是个空壳。这允许当对应的软件安装在打包系统的范围之外时满足对软件包的依赖。这样的方法有效，但仍应该尽可能地避免，因为不能保证手动安装的软件包完全像对应的软件包那样工作，并且依赖它的其它软件包会不能正常地工作。
equivs-control 和 equivs-build 命令（在软件包 equivs 中）来创建。equivs-control file 命令创建了 Debian 软件包头文件，应该编辑它来包含所需要的软件包的名称、其版本号、维护者姓名、其依赖及其描述。没有默认值的其它字段是可选的，并且可以被删除。Copyright（版权）、Changelog（更改日志）、Readme（自述文件） 和 Extra-Files（补充的文件） 字段在 Debian 软件包中不是标准字段；它们只在 equivs-build 的范围内是有意义，并且它们不会被保留在生成的软件包的标头中。
例 15.2. libxml-libxml-perl 伪装软件包的头文件
Section: perl Priority: optional Standards-Version: 4.5.1 Package: libxml-libxml-perl Version: 2.0207-1 Maintainer: Raphael Hertzog <[email protected]> Depends: libxml2 (>= 2.9.10) Architecture: all Description: Fake package - module manually installed in site_perl This is a fake package to let the packaging system believe that this Debian package is installed. . In fact, the package is not installed since a newer version of the module has been manually compiled & installed in the site_perl directory.
equivs-build file 命令生成 Debian 软件包。看：软件包创建在当前目录中，并且可以像任何其它 Debian 软件包那样处理它。
$equivs-build fileequivs-build control dpkg-buildpackage: info: source package libxml-libxml-perl dpkg-buildpackage: info: source version 2.0207-1 dpkg-buildpackage: info: source distribution unstable dpkg-buildpackage: info: source changed by Raphael Hertzog <[email protected]> dpkg-buildpackage: info: host architecture amd64 dpkg-source --before-build . debian/rules clean dh clean dh_clean debian/rules binary dh binary dh_update_autotools_config dh_autoreconf create-stamp debian/debhelper-build-stamp dh_prep dh_install dh_installdocs dh_installchangelogs dh_perl dh_link dh_strip_nondeterminism dh_compress dh_fixperms dh_missing dh_installdeb dh_gencontrol dh_md5sums dh_builddeb dpkg-deb: building package 'libxml-libxml-perl' in '../libxml-libxml-perl_2.0207-1_all.deb'. dpkg-genbuildinfo --build=binary dpkg-genchanges --build=binary >../libxml-libxml-perl_2.0207-1_amd64.changes dpkg-genchanges: info: binary-only upload (no source code included) dpkg-source --after-build . dpkg-buildpackage: info: binary-only upload (no source included) The package has been created. Attention, the package has been created in the current directory, not in ".." as indicated by the messaige above!
falcot-data-1.0 目录来包含目标源码包。软件包在本地命名为 falcot-data 并带有版本号 1.0。然后管理员将文档放置在 data 子目录中。然后调用 dh_make 命令（来自 dh-make 软件包），来添加软件包生成过程所需的文件，它们将被存储在 debian 子目录中：
$cd falcot-data-1.0$dh_make --nativeType of package: (single, indep, library, python) [s/i/l/p]?iMaintainer Name : Raphael Hertzog Email-Address : [email protected] Date : Sat, 26 Feb 2021 13:02:06 +0100 Package Name : falcot-data Version : 1.0 License : gpl3 Package Type : indep Are the details correct? [Y/n/q] Currently there is not top level Makefile. This may require additional tuning Done. Please edit the files in the debian/ subdirectory now. $
Architecture: all in debian/control). single acts as a counterpart, and leads to a single binary package that is dependent on the target architecture (Architecture: any). In this case, the former choice is more relevant since the package only contains documents and no binary programs, so it can be used similarly on computers of all architectures.
dh_make command created a debian subdirectory with many files. Some are required, in particular rules, control, changelog and copyright. Files with the .ex extension are example files that can be used by modifying them (and removing the extension) when appropriate. When they are not needed, removing them is recommended. The compat file is not used nor created anymore. Instead of defining the debhelper compatibility level as a number in this file, it is now defined as a build-dependency on the debhelper-compat virtual package in the Build-Depends file in debian/control.
copyright file must contain information about the authors of the documents included in the package, and the related copyright and license. In our case, these are internal documents and their use is restricted to within the Falcot Corp company. The default format used for this file is defined in the Format field.
changelog file is generally appropriate; replacing the “Initial release” with a more verbose explanation and changing the distribution from UNRELEASED or unstable to the target release name is enough.
control file must also be updated: the Section field can be changed to misc and the Homepage, Vcs-Git and Vcs-Browser fields were removed. The Depends fields was completed with firefox-esr | www-browser so as to ensure the availability of a web browser able to display the documents in the package. If the package does not require to run any commands as root (see 工具fakeroot), the Rules-Requires-Root field can be left as is.
例 15.3. control 文件
Source: falcot-data Section: misc Priority: optional Maintainer: Raphael Hertzog <[email protected]> Build-Depends: debhelper-compat (= 13) Standards-Version: 4.5.1 Rules-Requires-Root: no Package: falcot-data Architecture: all Depends: firefox-esr | www-browser, ${misc:Depends} Description: Internal Falcot Corp Documentation This package provides several documents describing the internal structure at Falcot Corp. This includes: - organization diagram - contacts for each department. . These documents MUST NOT leave the company. Their use is INTERNAL ONLY.
例 15.4. changelog 文件
falcot-data (1.0) bullseye; urgency=low
* Initial Release.
* Let's start with few documents:
- internal company structure;
- contacts for each department.
-- Raphael Hertzog <[email protected]> Sat, 26 Feb 2022 15:12:06 +0100
例 15.5. copyright 文件
Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ Upstream-Name: falcot-data Files: * Copyright: 2004-2021 Falcot Corp License: All rights reserved.
rules 文件通常包含一组用于在专用子目录（以生成的二级制软件包来命令）来配置、构建和安装软件的规则。然后这个子目录的内容在 Debian 软件包内存档，如同这个子目录是文件系统的根。在我们的情况下，文件将安装在 debian/falcot-data/usr/share/falcot-data/ 子目录中，从而安装生成的软件包将在 /usr/share/falcot-data/下部署文件。rules 文件用作 Makefile，带有一些标准的目标（包括 clean 和 binary，分别用来清理源目录和生成的二进制软件包）。
debhelper 工具提供的标准组命令的最低限。这是由 dh_make 生成文件的情况。为了安装我们的文件，我们通过创建后面的 debian/falcot-data.install 文件，来简单地配置 dh_install 命令的行为：
data/* usr/share/falcot-data/
falcot-data.desktop 文件，并通过在 debian/falcot-data.install 中添加第二行，而将它安装在 /usr/share/applications 中。
例 15.6. falcot-data.desktop文件
[Desktop Entry] Name=Internal Falcot Corp Documentation Comment=Starts a browser to read the documentation Exec=x-www-browser /usr/share/falcot-data/index.html Terminal=false Type=Application Categories=Documentation;
debian/falcot-data.install 看起来像这样：
data/* usr/share/falcot-data/ falcot-data.desktop usr/share/applications/
falcot-data-1.0 目录内运行 dpkg-buildpackage -us -uc 命令。