libglade-2.4.0 instalation

[wanakahalugi]

Hi Guys,

	I'd tried to install libglade-2.4.0 in my machine,
	but in the middle of the process there's an error
	message came up.

	Please anybody who can give me the clue how to
	fix this poblem...

	Thanks
	
	This is the error :

--------------error message--------------------
configure: creating libtool
checking for pkg-config... /usr/bin/pkg-config
checking for GTK+ - version >= 2.4.0... no
*** Could not run GTK+ test program, checking why...
*** The test program failed to compile or link. See the file config.log  
for the
*** exact error that occured. This usually means GTK+ is incorrectly  
installed.
checking for gtk_plug_get_type... no
checking for pkg-config... (cached) /usr/bin/pkg-config
checking for   libxml-2.0 >= 2.4.10   atk >= 1.0.0   gtk+-2.0 >= 2.4.0    
glib-2.0 >= 2.4.0...
Requested 'gtk+-2.0 >= 2.4.0' but version of GTK+ is 2.2.1

configure: error: Library requirements (  libxml-2.0 >= 2.4.10   atk >=  
1.0.0
gtk+-2.0 >= 2.4.0   glib-2.0 >= 2.4.0) not met; consider adjusting the  
PKG_CONFIG_PATH
environment variable if your libraries are in a nonstandard prefix so  
pkg-config can find them.
-----------------------------------------------