mirror of https://gitee.com/openkylin/glib2.0.git
96 lines
4.7 KiB
Markdown
96 lines
4.7 KiB
Markdown
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Supported platforms
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===
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GLib’s approach to portability is that we only support systems that we can test.
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That means that either a large number of GLib developers are regularly using
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GLib on a particular system, or we have regular builds of GLib on that system.
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Minimum versions
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---
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* macOS: minimum version OS X 10.7 (we
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[don’t support universal binaries](https://bugzilla.gnome.org/show_bug.cgi?id=780238);
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some features (like notification support)
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[require OS X 10.9](https://bugzilla.gnome.org/show_bug.cgi?id=747146)
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* Windows:
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[minimum version is Windows 8](https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1970),
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minimum build chain is Visual Studio 2012
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* Static builds are only supported with MinGW-based toolchains (cf
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[this comment](https://gitlab.gnome.org/GNOME/glib/-/merge_requests/2384#note_1336662))
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* Android: [minimum NDK version 15](https://gitlab.gnome.org/GNOME/glib/issues/1113)
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* Linux: glibc newer than 2.5 (if using glibc; other forms of libc are supported)
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Tested platforms
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---
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GLib is regularly built on at least the following systems:
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* GNOME OS Nightly: https://os.gnome.org/
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* Fedora: http://koji.fedoraproject.org/koji/packageinfo?packageID=382
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* Ubuntu: http://packages.ubuntu.com/source/glib2.0
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* Debian: https://packages.debian.org/experimental/libglib2.0-0
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* FreeBSD: https://wiki.gnome.org/Projects/Jhbuild/FreeBSD
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* openSUSE: https://build.opensuse.org/package/show/GNOME:Factory/glib2
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* CI runners, https://gitlab.gnome.org/GNOME/glib/blob/main/.gitlab-ci.yml:
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* Fedora (34, https://gitlab.gnome.org/GNOME/glib/-/blob/main/.gitlab-ci/fedora.Dockerfile)
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* Debian (Bullseye, https://gitlab.gnome.org/GNOME/glib/-/blob/main/.gitlab-ci/debian-stable.Dockerfile)
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* Windows (MinGW64)
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* Windows (msys2-mingw32)
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* Windows (Visual Studio 2017, and a static linking version)
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* Android (NDK r23b, API 31, arm64, https://gitlab.gnome.org/GNOME/glib/-/blob/main/.gitlab-ci/android-ndk.sh)
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* FreeBSD (12 and 13)
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* macOS
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If other platforms are to be supported, we need to set up regular CI testing for
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them. Please contact us if you want to help.
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Policy and rationale
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---
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Due to their position in the market, we consider supporting GNU/Linux, Windows
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and macOS to be the highest priorities and we will go out of our way to
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accommodate these systems, even in places that they are contravening standards.
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In general, we are open to the idea of supporting any Free Software UNIX-like
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system with good POSIX compliance. We are always interested in receiving
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patches that improve our POSIX compliance — if there is a good POSIX equivalent
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for a platform-specific API that we’re using, then all other things equal, we
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prefer the POSIX one.
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We may use a non-POSIX API available on one or more of our supported systems in
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the case that it provides some advantage over the POSIX equivalent (such as the
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case with `pipe2()` solving the `O_CLOEXEC` race). In these cases, we will try
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to provide a fallback to the pure POSIX approach. If we’ve used a
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system-specific API without providing a fallback to a largely-equivalent POSIX
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API then it is likely a mistake, and we’re happy to receive a patch to fix it.
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We are not interested in supporting other systems if it involves adding code
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paths that we cannot test. Specifically, this means that we will reject patches
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that introduce platform-specific `#ifdef` sections in the code unless we are
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actively doing builds of GLib on this platform (ie: see the lists above). We’ve
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historically accepted such patches from users of these systems on an ad hoc
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basis, but it created an unsustainable situation. Patches that fix
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platform-specific build issues in such a way that the code is improved in the
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general case are of course welcome.
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Although we aim to support all systems with good POSIX compliance, we are not
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interested in adhering to “pure POSIX and nothing else”. If we need to add a
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feature and we can provide good support on all of the platforms that we support
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(above), we will not hold back for other systems. We will always try to provide
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a fallback to a POSIX-specified approach, if possible, or to simply replace a
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given functionality with a no-op, but even this may not be possible in cases of
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critical functionality.
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Specific notes
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---
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Note that we currently depend on a number of features specified in POSIX, but
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listed as optional:
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* [`CLOCK_MONOTONIC`](http://pubs.opengroup.org/onlinepubs/009695399/functions/clock_gettime.html)
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is expected to be present and working
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* [`pthread_condattr_setclock()`](http://pubs.opengroup.org/onlinepubs/7999959899/functions/pthread_condattr_setclock.html)
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is expected to be present and working
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Also see [toolchain requirements](./toolchain-requirements.md).
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