X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftarget-alieneval.lisp;h=7a6e04195f20e5da8c70d844609d47b537fd68fc;hb=62b6c13eaaefa20b790e10a28d292e1821cd4446;hp=70fb7bb2737dc6a28da0adc9b1eb73906e7e76d9;hpb=7fb597b585fc715537ea644f7d84440eca217ca1;p=sbcl.git

diff --git a/src/code/target-alieneval.lisp b/src/code/target-alieneval.lisp
index 70fb7bb..7a6e041 100644
--- a/src/code/target-alieneval.lisp
+++ b/src/code/target-alieneval.lisp
@@ -830,12 +830,12 @@ ENTER-ALIEN-CALLBACK pulls the corresponsing trampoline out and calls it.")
                        (sb!kernel:get-lisp-obj-address result-pointer))))
          (with-alien
              ,(loop
+                 with offset = 0
                  for spec in argument-specs
-                 for offset = 0 ; FIXME: Should this not be AND OFFSET ...?
-                 then (+ offset (alien-callback-argument-bytes spec env))
                  collect `(,(pop argument-names) ,spec
                             :local ,(alien-callback-accessor-form
-                                     spec 'args-sap offset)))
+                                     spec 'args-sap offset))
+                 do (incf offset (alien-callback-argument-bytes spec env)))
            ,(flet ((store (spec)
                           (if spec
                               `(setf (deref (sap-alien res-sap (* ,spec)))