Variable: compilation-search-path
compilation-search-path is a customizable variable defined in
compile.el.gz.
Value
(nil)
Documentation
List of directories to search for source files named in error messages.
Elements should be directory names, not file names of directories. The value nil as an element means to try the default directory.
Probably introduced at or before Emacs version 27.1.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/compile.el.gz
;;;###autoload
(defcustom compilation-search-path '(nil)
"List of directories to search for source files named in error messages.
Elements should be directory names, not file names of directories.
The value nil as an element means to try the default directory."
:type '(repeat (choice (const :tag "Default" nil)
(string :tag "Directory"))))