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Title: Version Information SPDX-License-Identifier: LGPL-2.1-or-later SPDX-FileCopyrightText: 2004 Matthias Clasen SPDX-FileCopyrightText: 2012 Emmanuele Bassi

Version Information

GLib provides version information, primarily useful in configure checks for builds that have a configure script. Applications will not typically use the features described here.

Run-time Version Numbers

The variables glib_major_version, glib_minor_version, glib_micro_version, glib_binary_age and glib_interface_age are all available to check.

They can be compared using the function [func@GLib.check_version].

Compile-time Version Numbers

  • [const@GLib.MAJOR_VERSION]
  • [const@GLib.MINOR_VERSION]
  • [const@GLib.MICRO_VERSION]
  • [func@GLib.CHECK_VERSION]

Version Numbers

The GLib headers annotate deprecated APIs in a way that produces compiler warnings if these deprecated APIs are used. The warnings can be turned off by defining the macro GLIB_DISABLE_DEPRECATION_WARNINGS before including the glib.h header.

GLib also provides support for building applications against defined subsets of deprecated or new GLib APIs. Define the macro GLIB_VERSION_MIN_REQUIRED to specify up to what version of GLib you want to receive warnings about deprecated APIs. Define the macro GLIB_VERSION_MAX_ALLOWED to specify the newest version of GLib whose API you want to use.

The macros GLIB_VERSION_2_2, GLIB_VERSION_2_4, …, GLIB_VERSION_2_80, etc. are defined automatically in each release, and can be used to set the value of macros like GLIB_VERSION_MIN_REQUIRED.

The macros GLIB_VERSION_CUR_STABLE and GLIB_VERSION_PREV_STABLE are also automatically defined to point to the right version definitions.