Fix :bug-309448 test for faster CPUs.

[sbcl.git] / contrib / sb-executable / sb-executable.lisp

diff --git a/contrib/sb-executable/sb-executable.lisp b/contrib/sb-executable/sb-executable.lisp
index ee0d3ed..77740e0 100644 (file)
--- a/contrib/sb-executable/sb-executable.lisp
+++ b/contrib/sb-executable/sb-executable.lisp
@@ -7,27 +7,38 @@
 (cl:in-package :sb-executable)
 
 (defvar *stream-buffer-size* 8192)
-(defun copy-stream (from to)
+(defun copy-stream (from to &key (element-type (stream-element-type from) element-type-passed-p))
   "Copy into TO from FROM until end of the input stream, in blocks of
-*stream-buffer-size*.  The streams should have the same element type."
-  (unless (subtypep (stream-element-type to) (stream-element-type from))
-    (error "Incompatible streams ~A and ~A." from to))
+*stream-buffer-size*.  The streams should have the same element type.
+
+The argument :element-type indicates the element type of the
+buffer used to copy data from FROM to TO.
+
+If one of the streams has an element type that is different from
+what (stream-element-type stream) reports, that is, if it was
+opened with :element-type :default, the argument :element-type is
+required in order to select the correct stream decoding/encoding
+strategy."
+  (unless (or element-type-passed-p
+              (subtypep (stream-element-type to) element-type))
+    (error "Incompatible streams ~A and ~A:" from to))
   (let ((buf (make-array *stream-buffer-size*
-                         :element-type (stream-element-type from))))
+                         :element-type element-type)))
     (loop
-     (let ((pos (read-sequence buf from)))
-       (when (zerop pos) (return))
-       (write-sequence buf to :end pos)))))
+      (let ((pos (read-sequence buf from)))
+        (when (zerop pos) (return))
+        (write-sequence buf to :end pos)))))
+
 
 (defvar *exec-header*
   "#!/bin/sh --
-exec sbcl --noinform ~{~A ~}--eval \"(with-open-file (i \\\"$0\\\" :element-type '(unsigned-byte 8)) (loop while (< ret 2) when (= (read-byte i) 10) count 1 into ret) (load i) (funcall (quote ~A)) (quit))\" --end-toplevel-options ${1+\"$@\"}
+exec sbcl --noinform ~{~A ~}--eval \"(with-open-file (i \\\"$0\\\" :element-type '(unsigned-byte 8)) (loop while (< ret 2) when (= (read-byte i) 10) count 1 into ret) (load i) (funcall (quote ~A)) (exit))\" --end-toplevel-options ${1+\"$@\"}
 ")
 
 (defun make-executable (output-file fasls
                         &key (runtime-flags '("--disable-debugger"
-                                              "--userinit /dev/null"
-                                              "--sysinit /dev/null"))
+                                              "--no-userinit"
+                                              "--no-sysinit"))
                         initial-function)
   "Write an executable called OUTPUT-FILE which can be run from the shell, by 'linking' together code from FASLS.  Actually works by concatenating them and prepending a #! header"
   (with-open-file (out output-file
@@ -45,6 +56,7 @@ exec sbcl --noinform ~{~A ~}--eval \"(with-open-file (i \\\"$0\\\" :element-type
   (let* (;; FIXME: use OUT as the pathname designator
          (out-name (namestring (translate-logical-pathname output-file)))
          (prot (elt (multiple-value-list (sb-unix:unix-stat out-name)) 3)))
+    #-win32
     (if prot
         (sb-unix::void-syscall ("chmod" c-string int)
                                out-name