+
+#!+sb-package-locks
+(progn
+
+(define-condition package-lock-violation (reference-condition package-error)
+ ((format-control :initform nil :initarg :format-control
+ :reader package-error-format-control)
+ (format-arguments :initform nil :initarg :format-arguments
+ :reader package-error-format-arguments))
+ (:report
+ (lambda (condition stream)
+ (let ((control (package-error-format-control condition))
+ (*print-pretty* nil))
+ (if control
+ (format stream "Package lock on ~S violated when ~?."
+ (package-error-package condition)
+ control
+ (package-error-format-arguments condition))
+ (format stream "Package lock on ~S violated."
+ (package-error-package condition))))))
+ ;; no :default-initargs -- reference-stuff provided by the
+ ;; signalling form in target-package.lisp
+ #!+sb-doc
+ (:documentation
+ "Subtype of CL:PACKAGE-ERROR. A subtype of this error is signalled
+when a package-lock is violated."))
+
+(define-condition package-locked-error (package-lock-violation) ()
+ #!+sb-doc
+ (:documentation
+ "Subtype of SB-EXT:PACKAGE-LOCK-VIOLATION. An error of this type is
+signalled when an operation on a package violates a package lock."))
+
+
+(define-condition symbol-package-locked-error (package-lock-violation)
+ ((symbol :initarg :symbol :reader package-locked-error-symbol))
+ #!+sb-doc
+ (:documentation
+ "Subtype of SB-EXT:PACKAGE-LOCK-VIOLATION. An error of this type is
+signalled when an operation on a symbol violates a package lock. The
+symbol that caused the violation is accessed by the function
+SB-EXT:PACKAGE-LOCKED-ERROR-SYMBOL."))
+
+) ; progn