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bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwi
From: |
Drew Adams |
Subject: |
bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version |
Date: |
Sun, 2 Jun 2013 21:12:40 -0700 (PDT) |
I used to use an old (2007?) version of Cygwin. I just
installed the latest Cygwin verion on Windows 7. I use the same setup
for Emacs as previously (cygwin-mount.el, then setup-cygwin.el, both
from Emacs Wiki).
Previously, Cygwin handled MS DOS-style file names OK.
But `ediff-buffers' passes such file names for its temporary files,
and the latest version of Cygwin (on Windows 7 at least) does not,
by default, handle such file names: it issues a warning, which means
that Emacs raises an error and prints the Cygwin warning.
This makes `ediff-buffers' unusable. There is a workaround: set env var
CYGWIN to `nodosfilewarning'. I have added that to file setup-cygwin.el
as a workaround.
But I wonder if `ediff-buffers' could perhaps prevent the error/warning
anyway. I don't know whether it is really the 8-char DOS file-name
format that Cygwin objects to, but I think so. Maybe just having it
use full Windows (not DOS) file names would be a fix?
This is the error shown in buffer *ediff-errors*:
cygwin warning:
MS-DOS style path detected: c:/Users/XXXXXX~1.XXX/AppData/Local/Temp/foo.el
Preferred POSIX equivalent is:
/cygdrive/c/Users/XXXXXX~1.XXX/AppData/Local/Temp/foo.el
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
And this is the *Backtrace* I see:
Debugger entered--Lisp error:
(error "Errors in diff output. Diff output is in #<buffer *ediff-diff*>")
signal(error ("Errors in diff output. Diff output is in #<buffer
*ediff-diff*>"))
error("Errors in diff output. Diff output is in %S" #<buffer *ediff-diff*>)
ediff-prepare-error-list("^\\([0-9,]+[acd][0-9,]+
?$\\|[<>] \\|---\\|.*Warning *:\\|.*No +newline\\|.*missing +newline\\|^
?$\\)" #<buffer *ediff-diff*>)
ediff-setup-diff-regions("c:/Users/XXXXXX~1.XXX/AppData/Local/Temp/foo.el"
"c:/Users/XXXXXX~1.XXX/AppData/Local/Temp/bar.el"
nil)
ediff-setup(#<buffer foo.el> "c:/Users/XXXXXX~1.XXX/AppData/Local/Temp/foo.el"
#<buffer bar.el>
"c:/Users/XXXXXX~1.XXX/AppData/Local/Temp/bar.el" nil nil
((lambda nil (delete-file "c:/Users/XXXXXX~1.XXX/AppData/Local/Temp/foo.el")
(delete-file "c:/Users/XXXXXX~1.XXX/AppData/Local/Temp/bar.el")
(if (stringp nil) (delete-file nil)))) ((ediff-job-name . ediff-buffers)) nil)
ediff-buffers-internal("foo.el" "bar.el" nil nil ediff-buffers)
ediff-buffers("foo.el" "bar.el")
call-interactively(ediff-buffers nil nil)
command-execute(ediff-buffers)
In GNU Emacs 24.3.50.1 (i386-mingw-nt6.1.7601)
of 2013-06-01 on ODIEONE
Bzr revision: 112809 xfq.free@gmail.com-20130601123514-of64qkop6z48i3ko
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
`configure --with-gcc (4.7) --no-opt --enable-checking --cflags
-IC:/Devel/emacs/build/include --ldflags -LC:/Devel/emacs/build/lib'
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version,
Drew Adams <=
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Drew Adams, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Achim Gratz, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Drew Adams, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Achim Gratz, 2013/06/05
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Drew Adams, 2013/06/05
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Achim Gratz, 2013/06/06
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/06