bug#54730: 28.1; vhdl-update-sensitivity-list not working in Windows

[Eli Zaretskii <eliz@gnu.org>]

> From: Cyril Arnould <cyril.arnould@outlook.com>
> CC: "54730@debbugs.gnu.org" <54730@debbugs.gnu.org>
> Date: Tue, 5 Apr 2022 17:08:28 +0000
> 
> I’ve added an example file you can visit in the attachment. To reproduce, simply
> put the cursor inside the process (M-g-g 30 RET) and execute
> vhdl-update-sensitivity-list-process (C-c C-u C-s). I’m getting the following backtrace:
> 
> Debugger entered--Lisp error: (void-variable proc-end)
>   (vhdl-re-search-forward "[<:]=" proc-end t)
>   eval((vhdl-re-search-forward "[<:]=" proc-end t))
>   vhdl-update-sensitivity-list()
>   vhdl-update-sensitivity-list-process()
>   funcall-interactively(vhdl-update-sensitivity-list-process)
>   command-execute(vhdl-update-sensitivity-list-process)

Thanks, I think I see the problem now.  Does the below fix the
problem?  If not, can you tell me how to show the sensitivity list,
and what should be the correct result of invoking
vhdl-update-sensitivity-list-process in this case?

diff --git a/lisp/progmodes/vhdl-mode.el b/lisp/progmodes/vhdl-mode.el
index 64ebc14..e562a46 100644
--- a/lisp/progmodes/vhdl-mode.el
+++ b/lisp/progmodes/vhdl-mode.el
@@ -8396,30 +8396,30 @@ vhdl-update-sensitivity-list
 	    ((visible-list (vhdl-get-visible-signals))
 	     ;; define syntactic regions where signals are read
 	     (scan-regions-list
-	      '(;; right-hand side of signal/variable assignment
+	      `(;; right-hand side of signal/variable assignment
 		;; (special case: "<=" is relational operator in a condition)
-		((vhdl-re-search-forward "[<:]=" proc-end t)
-		 (vhdl-re-search-forward ";\\|\\<\\(then\\|loop\\|report\\|severity\\|is\\)\\>" proc-end t))
+		((vhdl-re-search-forward "[<:]=" ,proc-end t)
+		 (vhdl-re-search-forward ";\\|\\<\\(then\\|loop\\|report\\|severity\\|is\\)\\>" ,proc-end t))
 		;; if condition
-		((vhdl-re-search-forward "^\\s-*if\\>" proc-end t)
-		 (vhdl-re-search-forward "\\<then\\>" proc-end t))
+		((vhdl-re-search-forward "^\\s-*if\\>" ,proc-end t)
+		 (vhdl-re-search-forward "\\<then\\>" ,proc-end t))
 		;; elsif condition
-		((vhdl-re-search-forward "\\<elsif\\>" proc-end t)
-		 (vhdl-re-search-forward "\\<then\\>" proc-end t))
+		((vhdl-re-search-forward "\\<elsif\\>" ,proc-end t)
+		 (vhdl-re-search-forward "\\<then\\>" ,proc-end t))
 		;; while loop condition
-		((vhdl-re-search-forward "^\\s-*while\\>" proc-end t)
-		 (vhdl-re-search-forward "\\<loop\\>" proc-end t))
+		((vhdl-re-search-forward "^\\s-*while\\>" ,proc-end t)
+		 (vhdl-re-search-forward "\\<loop\\>" ,proc-end t))
 		;; exit/next condition
-		((vhdl-re-search-forward "\\<\\(exit\\|next\\)\\s-+\\w+\\s-+when\\>" proc-end t)
-		 (vhdl-re-search-forward ";" proc-end t))
+		((vhdl-re-search-forward "\\<\\(exit\\|next\\)\\s-+\\w+\\s-+when\\>" ,proc-end t)
+		 (vhdl-re-search-forward ";" ,proc-end t))
 		;; assert condition
-		((vhdl-re-search-forward "\\<assert\\>" proc-end t)
-		 (vhdl-re-search-forward "\\(\\<report\\>\\|\\<severity\\>\\|;\\)" proc-end t))
+		((vhdl-re-search-forward "\\<assert\\>" ,proc-end t)
+		 (vhdl-re-search-forward "\\(\\<report\\>\\|\\<severity\\>\\|;\\)" ,proc-end t))
 		;; case expression
-		((vhdl-re-search-forward "^\\s-*case\\>" proc-end t)
-		 (vhdl-re-search-forward "\\<is\\>" proc-end t))
+		((vhdl-re-search-forward "^\\s-*case\\>" ,proc-end t)
+		 (vhdl-re-search-forward "\\<is\\>" ,proc-end t))
 		;; parameter list of procedure call, array index
-		((and (re-search-forward "^\\s-*\\(\\w\\|\\.\\)+[ \t\n\r\f]*(" proc-end t)
+		((and (re-search-forward "^\\s-*\\(\\w\\|\\.\\)+[ \t\n\r\f]*(" ,proc-end t)
 		      (1- (point)))
 		 (progn (backward-char) (forward-sexp)
 			(while (looking-at "(") (forward-sexp)) (point)))))