Modify makefile to work with DKMS.  Apparently DKMS silently fails if you try to rearrange the source tree.

Build is now back to being in-place, but properly cleans up!

More warning fixes

See merge request ezekiel.dohmen/advligorts!1

Makefiles now honor symvers file locations if they are already specified in the environment.
This could cause problems if variables are unkowingly left defined.
A better option would be to override the variables on the command line
Variable names are changed to make it easier to derive them from module names.

Setting epics/util/Makefile.in to custom output dir and regenerating configure script for it, don't copy files that can cause race condition

log file usage.

(timespec_sub, timespec_add)

assembly version, user space build now consumes the libray build for the
executable.