IMPORTANT NOTE: The ldso and libdl1-altdev packages are only needed if
you want to run or rebuild very old programs that use libc4 or libc5.
As such, these packages are deprecated and no longer include any info
or manpages.  If you think you need these packages or think you have a
problem with them, please check again.  More than likely, you should
be dealing with the libc6 and libc6-dev packages which include their
own dynamic linker support that should be used for all current
programs.