Check $STY rather than $TERM when determining whether screen is running

byobu

@@ -28,7 +28,7 @@ if [ "$1" = "-v" ]; then
 fi
 
 # Nesting byobu inside of screen doesn't work well
-if [ ! -z "$STY" ]; then
+if [ ! -z $STY ]; then
 	echo `gettext "Exit the current screen session to run $PKG"`
 	exit 1
 fi

byobu-launcher

@@ -18,7 +18,7 @@
 #    You should have received a copy of the GNU General Public License
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-[ "$TERM" = "screen" ] && exit 0
+[ -z $STY ] || exit 0
 
 out=`screen -ls 2>/dev/null` || true
 if echo "$out" | grep -qsi "^No Sockets found in "; then

byobu-select-profile

@@ -130,7 +130,7 @@ setprofile() {
 			ln -s "$PROFILE_DIR/$x" "$HOME/.$PKG/profile"
 			found=1
 			echo
-			if [ "$TERM" = "screen" ]; then
+			if [ ! -z $STY ]; then
 				echo `gettext 'If you are using the default set of keybindings, press\n<F5> to activate these changes.\n\nOtherwise, exit this screen session and start a new one.'`
 			else
 				echo `gettext 'Run "byobu" to activate'`