>/usr/lib/libc.a		for statically linked executable.
>/usr/lib/libc.so.12.7	for dynamically linked executable.
>/usr/lib/libc_p.a	for profiling.
>/usr/lib/libc_pic.a	for what?

For making a dynamicly linked libc.so.12.7.

Also, if may be useful for updating bits but not all: just compile the
new bits, and take appart the archive, shove out the old, shove in the
new, and re-ar it.

Beyond that, I am also curious...
--
Hacksaw