out of 13/RInclude instead of /src/gno/build.tools. This implies that
builddate.rez has to have been previously installed in 13/RInclude; this
is done by the 'install' and 'release' targets in /src/gno/build.tools.
The last fix wasn't quite correct in that (for copying only data
forks) the rez fork was still created but with zero length.
This fix doesn't create the rez fork at all under those
circumstances.
- the rez fork rules is now in one of the *.mk files; don't
include it here
- make sure the contrib.h header gets installed
libcontrib.rez:
- added the build date