ldd

/usr/pkgsrc/x11/gtk2/work/.buildlink/lib/libcairo.so:
        -lpixman-1.0 => /usr/pkg/lib/libpixman-1.so.0
        -lm.0 => /usr/lib/libm.so.0
        -lc.12 => /usr/lib/libc.so.12
        -lfontconfig.1 => /usr/X11R7/lib/libfontconfig.so.1
        -lexpat.1 => /usr/X11R7/lib/libexpat.so.1
        -lfreetype.6 => /usr/X11R7/lib/libfreetype.so.6
        -lz.1 => /usr/lib/libz.so.1
        -lpng15.15 => /usr/pkg/lib/libpng15.so.15
        -lxcb-shm.0 => /usr/pkg/lib/libxcb-shm.so.0
        -lxcb.1 => /usr/pkg/lib/libxcb.so.1
        -lXau.6 => /usr/X11R7/lib/libXau.so.6
        -lXdmcp.6 => /usr/X11R7/lib/libXdmcp.so.6
        -lxcb-render.0 => /usr/pkg/lib/libxcb-render.so.0
        -lXrender.1 => /usr/pkg/lib/libXrender.so.1
        -lX11.6 => /usr/X11R7/lib/libX11.so.6
        -lGL.1 => /usr/X11R7/lib/libGL.so.1
        -lXext.6 => /usr/X11R7/lib/libXext.so.6
        -lXxf86vm.1 => /usr/X11R7/lib/libXxf86vm.so.1
        -lXfixes.3 => /usr/X11R7/lib/libXfixes.so.3
        -lXdamage.1 => /usr/X11R7/lib/libXdamage.so.1
        -ldrm.2 => /usr/X11R7/lib/libdrm.so.2
        -lpthread.0 => /usr/lib/libpthread.so.0