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Improve the default value of 'doc-view-ghostscript-program'.

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* lisp/doc-view.el (doc-view-ghostscript-program): On Windows, try
gswin64c, gswin32c, rungs, and mgs.  (Bug#36357)
This commit is contained in:
Tassilo Horn 2020-04-22 19:23:23 +02:00
parent fc55f65305
commit d2836fe71b
1 changed files with 15 additions and 3 deletions
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18
lisp/doc-view.el
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@ -155,9 +155,21 @@
(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")