What is the meaning of this error in gstreamer -plugin intstallation?

I have built gstreamer & gst-base plug-in from source but while configuring gst-plugins-good-0.10.30, I am getting error like this

checking for struct ip_mreqn... yes
checking for GLIB... configure: 
configure: error: This package requires GLib >= 2.20 to compile.

What is the meaning of t开发者_运维技巧his error and how can I install gst-plugins-good-0.10.30?

The error can mean one of the following things:
1. You don't have Glib development package (-devel) installed i.e. header files & pkg-config (.pc) file for Glib. You can check this using dpkg or yum or other commands based on your Linux distro. 2. You have Glib development package installed but the version is not 2.20 or higher. To check the version see the output of pkg-config --modversion glib-2.0
3. You have Glib development package installed but the pkg-config is not able to find it. You will have to set PKG_CONFIG_PATH environment variable in this case.
For the packages needed in case of gstreamer source, there is a REQUIREMENTSfile with the list of required packages. Also, configure will throw missing package which are needed. You will need to install from source or from the repo configure for your distro.
Hope this helps!

This means you need GLib 2.20 or later, obviously. On a Linux platform, first check whether a recent enough GLib is available in your package manager and install it if it is; it's probably called libglib or similar. Don't forget to also install the -devel (Debian, Ubuntu) or -dev (Red Hat, SuSE, CentOS, Fedora) package that comes with it; that package contains stuff you need to compile programs against GLib.

If the GLib in your system is too old, consider upgrading your Linux, or install GLib from source.