## Version Information

Version Information — Variables and functions to check the GLib version

## Synopsis

    #include <glib.h>

    #define             GLIB_MAJOR_VERSION
    #define             GLIB_MINOR_VERSION
    #define             GLIB_MICRO_VERSION
    #define             GLIB_CHECK_VERSION                  (major,
                                                             minor,
                                                             micro)

## Description

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.

## Details

### GLIB_MAJOR_VERSION

    #define GLIB_MAJOR_VERSION 2

The major version number of the GLib library. Like glib_major_version, but from the headers used at application compile time, rather than from the library linked against at application run time.

### GLIB_MINOR_VERSION

    #define GLIB_MINOR_VERSION 27

The minor version number of the GLib library. Like gtk_minor_version, but from the headers used at application compile time, rather than from the library linked against at application run time.

### GLIB_MICRO_VERSION

    #define GLIB_MICRO_VERSION 5

The micro version number of the GLib library. Like gtk_micro_version, but from the headers used at application compile time, rather than from the library linked against at application run time.

### GLIB_CHECK_VERSION()

    #define             GLIB_CHECK_VERSION(major,minor,micro)

Checks the version of the GLib library. Returns `TRUE` if the version of the GLib header files is the same as or newer than the passed-in version.

Example 1. Checking the version of the GLib library

    1
    2

    if (!GLIB_CHECK_VERSION (1, 2, 0))
      g_error ("GLib version 1.2.0 or above is needed");

`major` : | the major version number.
`minor` : | the minor version number.
`micro` : | the micro version number.