root@redthree [/usr/local/apache/libexec]# ldd mod_jk.so
        libc.so.6 => /lib/tls/libc.so.6 (0x00d8c000)
        /lib/ld-linux.so.2 (0x0086f000)

for reference:

root@redthree [/usr/local/apache/libexec]# ldd mod_rewrite.so
        libc.so.6 => /lib/tls/libc.so.6 (0x00111000)
        /lib/ld-linux.so.2 (0x0086f000)
root@redthree [/usr/local/apache/libexec]#