poky/scripts/oe-buildenv-internal
Jason Wessel 23d149856d 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.

(From OE-Core rev: 5568a8f5a1c65bae021b2e36d735d3153acc6d72)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2012-05-06 09:55:46 +01:00

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#!/bin/sh
# OE-Core Build Environment Setup Script
#
# Copyright (C) 2006-2011 Linux Foundation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# It is assumed OEROOT is already defined when this is called
if [ -z "$OEROOT" ]; then
echo >&2 "Error: OEROOT is not defined!"
return 1
fi
if [ "x$BDIR" = "x" ]; then
if [ "x$1" = "x" ]; then
BDIR="build"
else
BDIR="$1"
if [ "$BDIR" = "/" ]; then
echo >&2 "Error: / is not supported as a build directory."
return 1
fi
# Remove any possible trailing slashes. This is used to work around
# buggy readlink in Ubuntu 10.04 that doesn't ignore trailing slashes
# and hence "readlink -f new_dir_to_be_created/" returns empty.
BDIR=`echo $BDIR | sed -re 's|/+$||'`
BDIR=`readlink -f "$BDIR"`
if [ -z "$BDIR" ]; then
PARENTDIR=`dirname "$1"`
echo >&2 "Error: the directory $PARENTDIR does not exist?"
return 1
fi
fi
fi
if expr "$BDIR" : '/.*' > /dev/null ; then
BUILDDIR="$BDIR"
else
BUILDDIR="`pwd`/$BDIR"
fi
unset BDIR
BITBAKEDIR="$OEROOT/bitbake$BBEXTRA/"
BITBAKEDIR=`readlink -f "$BITBAKEDIR"`
BUILDDIR=`readlink -f "$BUILDDIR"`
if ! (test -d "$BITBAKEDIR"); then
echo >&2 "Error: The bitbake directory ($BITBAKEDIR) does not exist! Please ensure a copy of bitbake exists at this location"
return 1
fi
PATH="${OEROOT}/scripts:$BITBAKEDIR/bin/:$PATH"
unset BITBAKEDIR
# Used by the runqemu script
export BUILDDIR
export PATH
export BB_ENV_EXTRAWHITE="MACHINE DISTRO TCMODE TCLIBC http_proxy ftp_proxy https_proxy all_proxy ALL_PROXY no_proxy SSH_AGENT_PID SSH_AUTH_SOCK BB_SRCREV_POLICY SDKMACHINE BB_NUMBER_THREADS PARALLEL_MAKE GIT_PROXY_COMMAND GIT_PROXY_IGNORE SOCKS5_PASSWD SOCKS5_USER SCREENDIR"