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Obtaining a software package as source code and compiling it locally is a common scenario on Unix and Unix-like environments. Typically, this process involves the following steps: Generate build configuration files; Build the code; Install the result to an accessible location
Several code generation DSLs (attribute grammars, tree patterns, source-to-source rewrites) Active DSLs represented as abstract syntax trees DSL instance Well-formed output language code fragments Any programming language (proven for C, C++, Java, C#, PHP, COBOL) gSOAP: C / C++ WSDL specifications
Namespaces are created with the "unshare" command or syscall, or as "new" flags in a "clone" syscall. [33] The "ns" subsystem was added early in cgroups development to integrate namespaces and control groups. If the "ns" cgroup was mounted, each namespace would also create a new group in the cgroup hierarchy.
These problems can be avoided by distributing both the input files and the generated code. Most people will compile using the generated code, no different from any other software package, but anyone who wants to modify the parser component can modify the input files first and re-generate the generated files before compiling.
The GNU Autotools, also known as the GNU Build System, is a suite of build automation tools designed to support building source code and packaging the resulting binaries. It supports building a codebase for multiple target systems without customizing or modifying the code. It is available on many Linux distributions and Unix-like environments.
Portage and emerge are used by Gentoo Linux, Funtoo Linux, and Sabayon Linux. It is inspired by the BSD ports system and uses text based "ebuilds" to automatically download, customize, build, and update packages from source code. It has automatic dependency checking and allows multiple versions of a software package to be installed into ...
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POSIX.1-2001 allows a parent process to elect for the kernel to automatically reap child processes that terminate by explicitly setting the disposition of SIGCHLD to SIG_IGN (although ignore is the default, automatic reaping only occurs if the disposition is set to ignore explicitly [4]), or by setting the SA_NOCLDWAIT flag for the SIGCHLD signal.