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bug#36357: Wrong Ghostscript program name on MS Win
From: |
Tassilo Horn |
Subject: |
bug#36357: Wrong Ghostscript program name on MS Win |
Date: |
Wed, 22 Apr 2020 19:29:30 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Tassilo Horn <tsdh@gnu.org>
>> Cc: arash@gnu.org, mrsebastianurban@gmail.com, 36357@debbugs.gnu.org
>> Date: Wed, 22 Apr 2020 16:14:41 +0200
>>
>> > It is IME wrong and user-unfriendly to refuse to load foo.bat or
>> > foo.cmd and insist on running foo.exe. The reason is that having a
>> > batch file that shadows a .exe program is the easiest way of
>> > "customizing" programs, like adding default arguments, setting up a
>> > special PATH value, etc.
>>
>> I agree, and I will omit the extension at least for gs{64,32}winc. The
>> question is more how likely it is that some user has her own "rungs"
>> command/batch script which has nothing to do with "running GhostScript"
>> and then we call it in doc-view. I mean, "rungs" is at least an English
>> word...
>
> I think it's unlikely. E.g., on my system there's not a single file
> that goes by the name "rungs" with any extension. Another data point
> is that package authors generally try to choose names for their
> programs that don't clash with existing popular programs. So I think
> you could stop worrying about this.
Ok, thank you all, that's the patch I've eventually pushed to emacs-27.
--8<---------------cut here---------------start------------->8---
@@ -155,9 +155,21 @@ doc-view
(defcustom doc-view-ghostscript-program
(cond
((memq system-type '(windows-nt ms-dos))
- "gswin32c")
- (t
- "gs"))
+ (or
+ ;; Windows Ghostscript
+ (executable-find "gswin64c")
+ (executable-find "gswin32c")
+ ;; The GS wrapper coming with TeX Live
+ (executable-find "rungs")
+ ;; The MikTeX builtin GS Check if mgs is functional for external
+ ;; non-MikTeX apps. Was available under:
+ ;;
http://blog.miktex.org/post/2005/04/07/Starting-mgsexe-at-the-DOS-Prompt.aspx
+ (when-let ((mgs (executable-find "mgs")))
+ (when (= 0 (shell-command
+ (concat (shell-quote-argument mgs)
+ " -q -dNODISPLAY -c quit")))
+ mgs))))
+ (t "gs"))
"Program to convert PS and PDF files to PNG."
:type 'file
:version "27.1")
--8<---------------cut here---------------end--------------->8---
Eli, I guess some brave soul merges from emacs-27 to master from time to
time, so there's nothing more I have to do, right?
Bye,
Tassilo
- bug#36357: Wrong Ghostscript program name on MS Win, (continued)
- bug#36357: Wrong Ghostscript program name on MS Win, Arash Esbati, 2020/04/21
- bug#36357: Wrong Ghostscript program name on MS Win, Tassilo Horn, 2020/04/22
- bug#36357: Wrong Ghostscript program name on MS Win, Sebastian Urban, 2020/04/22
- bug#36357: Wrong Ghostscript program name on MS Win, Tassilo Horn, 2020/04/22
- bug#36357: Wrong Ghostscript program name on MS Win, Eli Zaretskii, 2020/04/22
- bug#36357: Wrong Ghostscript program name on MS Win, Eli Zaretskii, 2020/04/22
- bug#36357: Wrong Ghostscript program name on MS Win, Tassilo Horn, 2020/04/22
- bug#36357: Wrong Ghostscript program name on MS Win, Eli Zaretskii, 2020/04/22
- bug#36357: Wrong Ghostscript program name on MS Win,
Tassilo Horn <=