@@ -601,7 +601,12 @@ (define-syntax-rule (warn exp ...)
(match (vhash-assoc "PS1" actual)
(#f #f)
((_ . str)
- (when (and (getenv "PS1") (string=? str (getenv "PS1")))
+ (when (and (getenv "PS1") (string=? str (getenv "PS1"))
+
+ ;; 'PS1' might be conditional on 'GUIX_ENVIRONMENT', as
+ ;; shown in the hint below.
+ (not (or (string-contains str "$GUIX_ENVIRONMENT")
+ (string-contains str "${GUIX_ENVIRONMENT"))))
(warning (G_ "'PS1' is the same in sub-shell~%"))
(display-hint (G_ "Consider setting a different prompt for
environment shells to make them distinguishable.