Some versions of the screen utility provided from the host OS vendor
write the socket directory to $HOME/.screen. When using a shared home
directory across many servers, one sets the SCREENDIR environment
variable to avoid collisions in the shared home directory. This
results in problems launching a devshell where it is not entirely
obvious what happened because the SCREENDIR environment variable
got stripped from the environment prior to setting up the screen
in detached mode.
Example:
% bitbake -c devshell busybox
# ...Please connect in another terminal with "screen -r devshell"
% screen -r devshell
There is no screen to be resumed matching devshell.
The temporary work around was to do something like:
sh -c "unset SCREENDIR; screen -r devshell"
This patch adds SCREENDIR to the white list to ensure screen
works properly on systems where a developer needs to use
the SCREENDIR with shared home directories.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
