emacs-28 ad2287e: Retain compatibility with older project.el projects

[Dmitry Gutov]

branch: emacs-28
commit ad2287e659cf3edaeb3d6fc9687ee6d87cc7ace1
Author: Dmitry Gutov <dgutov@yandex.ru>
Commit: Dmitry Gutov <dgutov@yandex.ru>

    Retain compatibility with older project.el projects
    
    * lisp/progmodes/xref.el (xref--analyze):
    Retain compatibility with older project.el and its compatible
    project definitions (for standalone Xref from ELPA).
---
 lisp/progmodes/xref.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index 267ee16..1feb6ef 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -1025,7 +1025,7 @@ Return an alist of the form ((GROUP . (XREF ...)) ...)."
                    (eq xref-file-name-display 'project-relative)
                    (project-current)))
          (project-root (and project
-                            (expand-file-name (project-root project)))))
+                            (expand-file-name (xref--project-root project)))))
     (mapcar
      (lambda (pair)
        (cons (xref--group-name-for-display (car pair) project-root)