Zinf build problem

Hi

I am installing zinf on Linux. When I build by
./configure. I am getting the following error . 


compiling arts pmo plugin
Using x86 optimizations
checking for gdk-pixbuf-config... no
checking for GDK_PIXBUF - version >= 0.8.0... no
*** The gdk-pixbuf-config script installed by
GDK_PIXBUF could not be found
*** If GDK_PIXBUF was installed in PREFIX, make sure
PREFIX/bin is in
*** your path, or set the GDK_PIXBUF_CONFIG
environment variable to the
*** full path to gdk-pixbuf-config.
checking for mb_GetVersion in -lmusicbrainz... no
***
*** FreeAmp requires the MusicBrainz client library
version 1.0.1.
*** Download the library from 
***     http://www.musicbrainz.org/download.html
***
configure: error: Cannot continue.


What does it indicate. Can anyone help me out?

Thanks

Girija

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