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.
- basename(argv[0]) is verified to be one of "compile", "cmpl",
"assemble", or "asml", or an error is thrown. The latter
two were not in the previous version at all.
- Use the new GS/OS prefixes (>7)