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This documents the practices that I’ve been trying to follow for the last few years for managing GLib issues and merge requests, and why they seem to work well enough. Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
131 lines
4.4 KiB
Markdown
131 lines
4.4 KiB
Markdown
Simple install procedure
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========================
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```sh
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tar xf glib-*.tar.gz # unpack the sources
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cd glib-* # change to the toplevel directory
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meson setup _build # configure the build
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meson compile -C _build # build GLib
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# Become root if necessary
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meson install -C _build # install GLib
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```
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Requirements
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============
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GLib requires a C90-compliant (but not necessarily C99-compliant) C
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compiler and libc. On UNIX-like systems, it also assumes compliance
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with at least the original 1990 version of POSIX.
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GLib-2.0 requires pkg-config, which is tool for tracking the
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compilation flags needed for libraries. (For each library, a small `.pc`
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text file is installed in a standard location that contains the
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compilation flags needed for that library along with version number
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information.) Information about pkg-config can be found at:
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http://www.freedesktop.org/software/pkgconfig/
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Meson (http://mesonbuild.com/) is also required. If your distribution does not
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package a new enough version of Meson, it can be [installed using
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`pip`](https://mesonbuild.com/Getting-meson.html#installing-meson-with-pip).
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In order to implement conversions between character sets,
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GLib requires an implementation of the standard `iconv()` routine.
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Most modern systems will have a suitable implementation, however
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many older systems lack an `iconv()` implementation. On such systems,
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you must install the libiconv library. This can be found at:
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http://www.gnu.org/software/libiconv/
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If your system has an iconv implementation but you want to use
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libiconv instead, you can pass the `--with-libiconv` option to
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configure. This forces libiconv to be used.
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Note that if you have libiconv installed in your default include
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search path (for instance, in `/usr/local/`), but don't enable
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it, you will get an error while compiling GLib because the
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`iconv.h` that libiconv installs hides the system iconv.
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If you are using the native iconv implementation on Solaris
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instead of libiconv, you'll need to make sure that you have
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the converters between locale encodings and UTF-8 installed.
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At a minimum you'll need the `SUNWuiu8` package. You probably
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should also install the `SUNWciu8`, `SUNWhiu8`, `SUNWjiu8`, and
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`SUNWkiu8` packages.
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The native iconv on Compaq Tru64 doesn't contain support for
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UTF-8, so you'll need to use GNU libiconv instead. (When
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using GNU libiconv for GLib, you'll need to use GNU libiconv
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for GNU gettext as well.) This probably applies to related
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operating systems as well.
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Finally, for message catalog handling, GLib requires an implementation
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of `gettext()`. If your system doesn't provide this functionality,
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you should use the libintl library from the GNU gettext package,
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available from:
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http://www.gnu.org/software/gettext/
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Support for extended attributes and SELinux in GIO requires
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libattr and libselinux.
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Some of the mimetype-related functionality in GIO requires the
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`update-mime-database` and `update-desktop-database` utilities, which
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are part of shared-mime-info and desktop-file-utils, respectively.
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GObject uses libffi to implement generic marshalling functionality.
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The Nitty-Gritty
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================
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Complete information about installing GLib can be found
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in the file:
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docs/reference/glib/html/glib-building.html
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Or online at:
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https://docs.gtk.org/glib/building.html
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Installation directories
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========================
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The location of the installed files is determined by the `--prefix`
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and `--exec-prefix` options given to configure. There are also more
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detailed flags to control individual directories. However, the
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use of these flags is not tested.
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One particular detail to note, is that the architecture-dependent
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include file `glibconfig.h` is installed in `$libdir/glib-2.0/include/`.
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`.pc` files for the various libraries are installed in
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`$libdir/pkgconfig` to provide information when compiling
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other packages that depend on GLib. If you set `PKG_CONFIG_PATH`
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so that it points to this directory, then you can get the
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correct include flags and library flags for compiling a GLib
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application with:
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```sh
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pkg-config --cflags glib-2.0
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pkg-config --libs glib-2.0
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```
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This is the only supported way of determining the include and library flags
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for building against GLib.
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Cross-compiling GLib
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====================
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Information about cross-compilation of GLib can be found
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in the file:
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docs/reference/glib/html/glib-cross-compiling.html
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Or online at:
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https://docs.gtk.org/glib/cross-compiling.html
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