Bastien writes:
> If you or anyone can fix those error, please have a go.
Here is another one that may need further work. The byte-compiler of
Emacs 22 does not seem to handle defaliased special forms correctly when
expanding macros. This can be circumvented with a defmacro, but then
the decision becomes compile-time rather than load time (one could make
it run-time by quoteing more broadly). For the current uses this should
be OK. Also, ODT export now compiles correctly, but still doesn't work
in Emacs 22 since delete-directory doesn't have a second argument
(recursive delete) in Emacs 22. This would need to be worked around or
at least the error caught.
>From e459dde441932d95d157648519fc2768262fd1e8 Mon Sep 17 00:00:00 2001
From: Achim Gratz <strom...@stromeko.de>
Date: Wed, 19 Dec 2012 19:35:19 +0100
Subject: [PATCH] Backwards compatibility: don't defalias special forms
* lisp/org-compat.el (org-condition-case-unless-debug): Do not use
defalias for special forms, the Emacs 22 byte-compiler does not
recognize them correctly when compiling macros. Use a macro instead
and rely on macro expansion. That however makes the decision at
compile time, which should be acceptable in this case since it only
affects debugging.
---
lisp/org-compat.el | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/lisp/org-compat.el b/lisp/org-compat.el
index 1f330b1..292a777 100644
--- a/lisp/org-compat.el
+++ b/lisp/org-compat.el
@@ -438,12 +438,13 @@ (defun org-pop-to-buffer-same-window
;; `condition-case-unless-debug' has been introduced in Emacs 24.1
;; `condition-case-no-debug' has been introduced in Emacs 23.1
-(defalias 'org-condition-case-unless-debug
+(defmacro org-condition-case-unless-debug (var bodyform &rest handlers)
+ (declare (debug condition-case) (indent 2))
(or (and (fboundp 'condition-case-unless-debug)
- 'condition-case-unless-debug)
+ `(condition-case-unless-debug ,var ,bodyform ,@handlers))
(and (fboundp 'condition-case-no-debug)
- 'condition-case-no-debug)
- 'condition-case))
+ `(condition-case-no-debug ,var ,bodyform ,@handlers))
+ `(condition-case ,var ,bodyform ,@handlers)))
;;;###autoload
(defmacro org-check-version ()
--
1.8.0.1
With all fixes in, Emacs 24 can run the tests for an the Org compiled by
Emacs 22 now with just one error remaining, on master this is:
Test ob-exp/mixed-blocks-with-exports-both condition:
(wrong-type-argument number-or-marker-p nil)
FAILED 19/403 ob-exp/mixed-blocks-with-exports-both
and this one on maint:
Test test-org-src/blank-line-block condition:
(error "No special environment to edit here")
FAILED 346/378 test-org-src/blank-line-block
One of the 13 errors when Emacs 22 runs the testsuite itself is due to
an unconditional use of visual-line-mode, which Emacs 22 does not have.
Regards,
Achim.
--
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