hiroy@netcom.com (Hiroyuki Ito) writes:

> 
> /usr/lib/libc_pic.a	for what?

It's an archive of PIC object files, which you can use to rebuild the
shared library.  Precedent for this comes from SunOS, where you don't
have the source available, and you may want to replace a function in
libc; without the PIC object files, you can't do that.  (SunOS puts
the _pic.a archives in a different location, though.)