Now that I have had a chance to sleep on this, I will save you some
trouble: an environment or command line variable will not be accepted
upstream for this and 1.6.4 will add a board_info key for this purpose.
The rationale is that DejaGnu can support testing runs spanning multiple
targets, and in the future will support multiple targets in parallel
testing mode as well. There is no good way to limit the scope of an
environment variable or command line variable to only one target, and
different target boards may need different timeout values. The
board_info structures are the correct place for this information.
While 1.6.4 may possibly rework board_info internally, I will try to
keep the changes to lib/remote.exp simple enough for Debian to easily
backport them to 1.6.3 and/or 1.6.2.
-- Jacob
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