root:1# pkg_add -i ImageMagick                                                 
Ambiguous: choose package for ImageMagick
         0: <None>
         1: ImageMagick-6.3.2.1p0
         2: ImageMagick-6.3.2.1p0-no_x11
Your choice: 1
Can't install ImageMagick-6.3.2.1p0: lib not found expat.6.0
Even by looking in the dependency tree:
        lcms-1.15, bzip2-1.0.4, ghostscript-fonts-8.11, netpbm-10.26.38, jpeg-6bp3, libiconv-1.9.2p3, tiff-3.8.2p0, libxml-2.6.26p0, ghostscript-8.54p0, jbigkit-1.6p1, transfig-3.2.4p0, png-1.2.16p0, jasper-1.900.1
root:2#