Hi, Attempting to use ABCL to build a current development checkout of SBCL on Linux/i686, I encountered the following error. ABCL builds SBCL on Linux/AMD64 correctly, with the same openjdk version. ------------------ file foo.lisp ------------------------------------------ (in-package :cl-user) (defun symbolicate (&rest things) (let* ((length (reduce #'+ things :key (lambda (x) (length (string x))))) (name (make-array length :element-type 'character))) (let ((index 0)) (dolist (thing things (values (intern name))) (let* ((x (string thing)) (len (length x))) (replace name x :start1 index) (incf index len)))))) (macrolet ((def (name &optional variant) `(defun ,(if variant (symbolicate name "/" variant) name) (function mutex) (declare (function function)) (flet ((%call-with-system-mutex () (dx-let (got-it) (unwind-protect (when (setf got-it (get-mutex mutex)) (funcall function)) (when got-it (release-mutex mutex)))))) (declare (inline %call-with-system-mutex)) ,(ecase variant (:without-gcing `(without-gcing (%call-with-system-mutex))) (:allow-with-interrupts `(without-interrupts (allow-with-interrupts (%call-with-system-mutex)))) ((nil) `(without-interrupts (%call-with-system-mutex)))))))) (def call-with-system-mutex) (def call-with-system-mutex :without-gcing) (def call-with-system-mutex :allow-with-interrupts)) ---------------------- Armed Bear Common Lisp 0.13.0-dev Java 1.6.0_23 Sun Microsystems Inc. OpenJDK Server VM Low-level initialization completed in 0.344 seconds. Startup completed in 1.453 seconds. Type ":help" for a list of available commands. CL-USER(1): (compile-file "/tmp/foo") ; Compiling /tmp/foo.lisp ... ; (IN-PACKAGE :CL-USER) ; (DEF CALL-WITH-SYSTEM-MUTEX) ; in (MACROLET (#) ...) ; Caught STYLE-WARNING: ; Undefined variable: GOT-IT Stack inconsistency at index 63: found 3, expected 1. java.lang.VerifyError: (class: org/armedbear/lisp/foo_1, method: execute signature: (Lorg/armedbear/lisp/LispObject;Lorg/armedbear/lisp/LispObject;)Lorg/armedbear/lisp/LispObject;) Inconsistent stack height 1 != 3 at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2406) at java.lang.Class.getConstructor0(Class.java:2716) at java.lang.Class.getConstructor(Class.java:1674) at org.armedbear.lisp.Lisp.loadCompiledFunction(Lisp.java:1147) at org.armedbear.lisp.Lisp.loadCompiledFunction(Lisp.java:1074) at org.armedbear.lisp.CompiledFunction$1.execute(CompiledFunction.java:186) at org.armedbear.lisp.Symbol.execute(Symbol.java:720) at org.armedbear.lisp.LispThread.execute(LispThread.java:638) at org.armedbear.lisp.compile_file_4.execute(compile-file.lisp:63) at org.armedbear.lisp.Symbol.execute(Symbol.java:720) at org.armedbear.lisp.LispThread.execute(LispThread.java:638) at org.armedbear.lisp.compile_file_8.execute(compile-file.lisp:103) at org.armedbear.lisp.LispThread.execute(LispThread.java:680) Eric