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

* lisp/doc-view.el (doc-view-ghostscript-program): Make the
default value dependent on the underlying OS.  (Bug#36357)

diff --git a/lisp/doc-view.el b/lisp/doc-view.el
index 7ab8539052a9d6930f2dd503b9831afe5444d600..78895ebd7a6186f95fb66ce5bf784af627ff4b3a 100644 (file)
--- a/lisp/doc-view.el
+++ b/lisp/doc-view.el
@@ -152,9 +152,15 @@
   :group 'multimedia
   :prefix "doc-view-")
 
-(defcustom doc-view-ghostscript-program "gs"
+(defcustom doc-view-ghostscript-program
+  (cond
+   ((memq system-type '(windows-nt ms-dos))
+    "gswin32c")
+   (t
+    "gs"))
   "Program to convert PS and PDF files to PNG."
-  :type 'file)
+  :type 'file
+  :version "27.1")
 
 (defcustom doc-view-pdfdraw-program
   (cond