GTK installation

[Ninad Pachpute <ninad in gmail com>]

Hi

i got the following error after doing ./configure while installing GTK 2.6

............
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checking for a BSD-compatible install... /usr/bin/install -c
checking whether make sets $(MAKE)... (cached) yes
checking for pkg-config... /usr/bin/pkg-config
checking for glib-2.0 >= 2.6.0    atk >= 1.0.1    pango >= 1.7.0...
Requested 'glib-2.0 >= 2.6.0' but version of GLib is 2.4.7

configure: error: Library requirements (glib-2.0 >= 2.6.0    atk >=
1.0.1    pango >= 1.7.0) not met; consider adjusting the
PKG_CONFIG_PATH environment variable if your libraries are in a
nonstandard prefix so pkg-config can find them.

PLEASE EXPLAIN..

THANK YOU