a simple question

[rings <rings etang com>]

Hello everyboday:
  I use gdk-pixbuf in my application.I use 
 gcc `gtk-config --cflags`  test_pixbuf.c -o test_pixbuf `gtk-config --libs` to compile ,but show error: 
"undefined reference to `gdk_pixbuf_new_from_file'" ,I already include gdk-pixbuf.h file,if I should link 
other file.Please hele me.

thanks

rings