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Meson can automatically find and use external dependencies installed on the users system via pkg-config, CMake, and project-specific lookups. [18] Alternatively, or as a fallback, a dependency can be provided as a subproject – a Meson project within another, either contained or as a download link, possibly with patches. [ 19 ]
rPath allowed definition of systems as layered variants of common base platforms. For example, the standard corporate web server stack may start with a standard build of Red Hat Enterprise Linux (RHEL) but add a specific custom version of the Apache HTTP Server and remove all availability of FTP. With this feature, rPath enabled IT groups to ...
When one of these paths repeatedly changes its state from available to not available (and vice versa), the BGP router controlling that path has to repeatedly add and remove the path record from its routing table (flaps the path), thus spending local resources such as CPU and RAM and, even more, broadcasting useless information to peer routers.
In software engineering, dependency injection is a programming technique in which an object or function receives other objects or functions that it requires, as opposed to creating them internally. Dependency injection aims to separate the concerns of constructing objects and using them, leading to loosely coupled programs.
The developers of Gentoo Linux also attempted to adapt these changes in OpenRC, but the implementation contained too many bugs, causing the distribution to mark systemd as a dependency of GNOME. [105] [106] GNOME has further integrated logind. [107] As of Mutter version 3.13.2, logind is a dependency for Wayland sessions. [108]
Make's dependency ordering and out-of-date checking makes the build process more robust and more efficient. The makefile allowed for better organization of build logic and often fewer build files. Make is widely used in part due to its early inclusion in Unix , starting with PWB/UNIX 1.0, which featured a variety of software development tools.
Ninja is a build system developed by Evan Martin, [4] a Google employee. Ninja has a focus on speed and it differs from other build systems in two major respects: it is designed to have its input files generated by a higher-level build system, and it is designed to run builds as fast as possible.
In object-oriented design, the dependency inversion principle is a specific methodology for loosely coupled software modules.When following this principle, the conventional dependency relationships established from high-level, policy-setting modules to low-level, dependency modules are reversed, thus rendering high-level modules independent of the low-level module implementation details.