fisher@ws% ldd `which perl`
        linux-vdso.so.1 =>  (0x00007fff527ff000)
        libperl.so.5.10 => /usr/lib/libperl.so.5.10 (0x00007f1e76cbc000)
        libdl.so.2 => /lib/libdl.so.2 (0x00007f1e76ab8000)
        libm.so.6 => /lib/libm.so.6 (0x00007f1e76835000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x00007f1e76619000)
        libc.so.6 => /lib/libc.so.6 (0x00007f1e762b8000)
        libcrypt.so.1 => /lib/libcrypt.so.1 (0x00007f1e76080000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f1e7704c000)
fisher@ws% ldd `which gcc` 
        linux-vdso.so.1 =>  (0x00007fffe37ff000)
        libc.so.6 => /lib/libc.so.6 (0x00007f5675958000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f5675cdc000)
fisher@ws%