From 0fb52dcc45742af58a081bd6ca27b70f6a6a1899 Mon Sep 17 00:00:00 2001
From: Dmitry Gutov <dgutov@yandex.ru>
Date: Mon, 10 Apr 2017 06:22:55 +0300
Subject: [PATCH] ; Add a FIXME about handing a missing find or grep program

---
 lisp/progmodes/xref.el | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index a8933b0103e..e9c42a129a8 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -931,6 +931,10 @@ IGNORES is a list of glob patterns."
     (with-current-buffer buf
       (erase-buffer)
       (call-process-shell-command command nil t)
+      ;; FIXME: What to do when the call fails?
+      ;; "find: ‘zzgrep’: No such file or directory\n"
+      ;; The problem is, find-grep can exit with a nonzero code even
+      ;; when there are some matches in the output.
       (goto-char (point-min))
       (while (re-search-forward grep-re nil t)
         (push (list (string-to-number (match-string 2))
-- 
2.39.2