[RTEMS Project] #3562: Use a short paths for the RSB temporary build path on Windows

[RTEMS trac]

#3562: Use a short paths for the RSB temporary build path on Windows
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  Reporter:  Chris Johns  |      Owner:  Chris Johns
      Type:  defect       |     Status:  assigned
  Priority:  normal       |  Milestone:  5.1
 Component:  admin        |    Version:  5
  Severity:  normal       |   Keywords:
Blocked By:               |   Blocking:
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 The `%{_tmproot}` path is currently based on a `BuildRoot` setting in the
 build configuration files. The line is:
 {{{
 BuildRoot: %{_tmppath}/%{name}-root-%(%{__id_u} -n)
 }}}
 This is for a shared `$TEMP` path plus the name is not shortened so on
 Windowss these paths become long.
 Remove the `BuildRoot` from all configuration files and add support for a
 shortened temporary path. Windows needs short paths due to the 256 max.
 path length issue.

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Ticket URL: <http://devel.rtems.org/ticket/3562>
RTEMS Project <http://www.rtems.org/>
RTEMS Project