terminal.bbclass, oe-buildenv-internal: pass SCREENDIR environment variable

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>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes/terminal.bbclass b/meta/classes/terminal.bbclass
index ca28bd24f..3cfc84b44 100644
--- a/meta/classes/terminal.bbclass
+++ b/meta/classes/terminal.bbclass
@@ -4,7 +4,7 @@ OE_TERMINAL[choices] = 'auto none \
                         ${@" ".join(o.name \
                                     for o in oe.terminal.prioritized())}'
 
-OE_TERMINAL_EXPORTS = 'XAUTHORITY SHELL DBUS_SESSION_BUS_ADDRESS DISPLAY EXTRA_OEMAKE'
+OE_TERMINAL_EXPORTS = 'XAUTHORITY SHELL DBUS_SESSION_BUS_ADDRESS DISPLAY EXTRA_OEMAKE SCREENDIR'
 OE_TERMINAL_EXPORTS[type] = 'list'
 
 XAUTHORITY ?= "${HOME}/.Xauthority"