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1. #DIGIKAM FACE RECOGNITION TUTORIAL FULL VERSION#
2. #DIGIKAM FACE RECOGNITION TUTORIAL INSTALL#
3. #DIGIKAM FACE RECOGNITION TUTORIAL FULL#
4. #DIGIKAM FACE RECOGNITION TUTORIAL SOFTWARE#
5. #DIGIKAM FACE RECOGNITION TUTORIAL FREE#

#DIGIKAM FACE RECOGNITION TUTORIAL SOFTWARE#

So the whole statement means if BUILD_ORIG condition is met, then set the build status of the if quoted content to 1, which is to build them if it's not met, then use default, which is 0, not to build.DigiKam 7.0 open-source professional photo management software arrives for Linux-based operating systems with major new features and dozens of improvements for all your image management needs.ĭigiKam 7.0 comes eight months after latest version 6.4, which probably many of you are currently using on your favorite GNU/Linux distributions, and about a year and a half after the digiKam 6.0 series. This variant use a way that combines definition and usage: 0 means default boolean value, ? means "to judge". The afterward usage is %if something.Ī second variant is defined by %with_something 0, then use:Īs well as the conditionals without declaration/definition in gegl: This variant is implemented by the RPM universal way to define macros:īut here something can be only a boolean, 0 or 1. There are some variants of conditionals commonly used by our packagers too, like the conditionals created from %define in pidgin:

#DIGIKAM FACE RECOGNITION TUTORIAL FULL#

They don't need to build a libspotify16 package locally, rpm -ivh it and its -devel package, then add BuildRequires: libspotify-devel to your specfile's preamble and %files section to compile the full version.Īs a packager, you can add conditionals and file BuildRequires: % will expand to 0 (unless you manually defined with_foo to some value, of course).

#DIGIKAM FACE RECOGNITION TUTORIAL FULL VERSION#

Under such circumstances, conditionals can finish the "optional builds" task and please users who want a full version to the most extent.

So you can't hard-code it (It'll fails and complains "unresolvable" of libspotify).

#DIGIKAM FACE RECOGNITION TUTORIAL FREE#

There is plenty of instances across media players, e.g.: clementine.Ĭlementine provides Spotify online music streaming (for US paid customers only) through a commercial but free to use library called libspotify. Sometimes you have to use conditionals instead of hard coding, or our Build Service can't host your application for sure. Wise way to avoid Build Service blacklist If the user uses some automatic orphan package detector and cleaner like rpmorphan or YaST (but possibly with different results,), she may delete it by chance.īut if you use conditional builds, even if you setup the conditionals to be true, when the user installs the package while the prerequisites can't be met like libgtk2 not found, the RPM package manager just cancels installation of GUI-related sub-packages and installs the main package, unless you explicitly declares "Requires" of *-gui sub-package instead of "Recommends" it. And if they run sudo zypper in pidgin, the automatic dependency resolver won't select finch.

#DIGIKAM FACE RECOGNITION TUTORIAL INSTALL#

If a user wants to install pidgin and needs CLI support, and if they don't know that the CLI version of pidgin is named finch, they won't easily find the CLI program. The bad part of this trick is that even if you transfer the choice to end users, they may of a great chance aren't aware to select it. Thus the output RPM has GUI support by default which can't be removed separately unless you use some tricks to avoid it, like introduce a sub-package *-gui, and don't "Requires" it in other sub-packages and the main package. If you don't use conditionals in the %build section, but use hard-coded -with-gui, then you need to add BuildRequires: gtk2-devel in the preamble. But hardcoding needs to change many places in a specfile every time, so it increases the chance of build failure. You can even leave the specfile, just pass parameters to control. bool macros enable you to control the whole specfile by modifying only one number which is 0 or 1. The advantage of using conditionals is that you can control their on/off status in valid spec codes while when hardcoding values, you need to add/remove comment markers in the specfile ( #) to disable/enable them. To use conditionals, you need to define in the preamble, modifying BuildRequires/Requires/Provides/Obsoletes, %package (-n) sub-packages and %files file section. Such -with-gui parameters can be implemented by hardcoding or by defining bool macros.

To CMake it's -DENABLE_GTK3_MODULE stuff. To the autotools build system, conditionals is the common configure -with-gui in configure we have seen here or there. rpmbuild is the core command of RPM packaging, the osc build you use is actually a macro pointing to it. Packages can provide supports for third party/commercial/special/uncommon features by passing boolean conditionals into rpmbuild, which look like -with(out) "conditions". What are conditionals? Why do we need them?