Take cdr of pairs only.

diff --git a/v7/src/runtime/gc.scm b/v7/src/runtime/gc.scm
index 0e026949ece6ce3f27a555aa54936a21fb59b616..ab197f2971da4f674cf782689e84fbdb4efebfd7 100644 (file)
--- a/v7/src/runtime/gc.scm
+++ b/v7/src/runtime/gc.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: gc.scm,v 14.13 1993/09/20 19:21:47 gjr Exp $
+$Id: gc.scm,v 14.14 1993/09/20 19:30:50 gjr Exp $
 
 Copyright (c) 1988-93 Massachusetts Institute of Technology
 
@@ -86,27 +86,24 @@ MIT in each case. |#
                  (real-default))
                 ((not (car result))
                  (set! pure-space-queue (cdr pure-space-queue))
-                 (queued-purification-failure))
-                ((eq? (car result) true)
-                 (set! pure-space-queue '()))
+                 (queued-purification-failure)
+                 (cdr result))
                 (else
-                 ;; Wrong phase -- wait until next time.
-                 (real-default)))
-          (cdr result)))
+                 (set! pure-space-queue '())
+                 (cdr result)))))
        ((not (null? constant-space-queue))
         (let ((result
                (purify-internal constant-space-queue false safety-margin)))
           (cond ((not (pair? result))
+                 ;; Wrong phase -- wait until next time.
                  (real-default))
                 ((not (car result))
                  (set! constant-space-queue (cdr constant-space-queue))
-                 (queued-purification-failure))
-                ((eq? (car result) true)
-                 (set! constant-space-queue '()))
+                 (queued-purification-failure)
+                 (cdr result))
                 (else
-                 ;; Wrong phase -- wait until next time.
-                 (real-default)))
-          (cdr result)))
+                 (set! constant-space-queue '())
+                 (cdr result)))))
        (else
         (real-default))))