* usr/share/byobu/profiles/bashrc: LP: #1280550

- test the $BASH variable, rather than $SHELL, to tell if we're
    running in a bash environment

debian/changelog

@@ -5,6 +5,11 @@ byobu (5.74) unreleased; urgency=low
     - merged in updated instance pricing script from
       https://github.com/erans/ec2instancespricing
 
+  [ Arminius Silvanus ]
+  * usr/share/byobu/profiles/bashrc: LP: #1280550
+    - test the $BASH variable, rather than $SHELL, to tell if we're
+      running in a bash environment
+
   [ Jan Klepek ]
   * usr/lib/byobu/include/config.py: LP: #1286249
     - fall back to using the distro status file, fixes

usr/share/byobu/profiles/bashrc

@@ -24,7 +24,7 @@ case "$TERM" in
 esac
 if [ -n "$TMUX" ] || [ "${TERMCAP#*screen}" != "${TERMCAP}" ]; then
 	# Ensure that we're in bash, in a byobu environment
-	if [ -n "$BYOBU_BACKEND" ] && [ "$SHELL" = "/bin/bash" ]; then
+	if [ -n "$BYOBU_BACKEND" ] && [ -n "$BASH" ]; then
 		byobu_prompt_status() { local e=$?; [ $e != 0 ] && echo -e "$e "; }
 		case "$BYOBU_DISTRO" in
 			"Ubuntu")