Ensure that emacs uses GNU find. See components/emacs/README.

--- emacs-30.1/lisp/loaddefs.el.orig
+++ emacs-30.1/lisp/loaddefs.el
@@ -15129,7 +15129,7 @@
 (defvar grep-program (purecopy "grep") "\
 The default grep program for `grep-command' and `grep-find-command'.
 This variable's value takes effect when `grep-compute-defaults' is called.")
-(defvar find-program (purecopy "find") "\
+(defvar find-program (purecopy "/usr/gnu/bin/find") "\
 The default find program.
 This is used by commands like `grep-find-command', `find-dired'
 and others.")
--- emacs-30.1/lisp/ldefs-boot.el.orig
+++ emacs-30.1/lisp/ldefs-boot.el
@@ -15129,7 +15129,7 @@
 (defvar grep-program (purecopy "grep") "\
 The default grep program for `grep-command' and `grep-find-command'.
 This variable's value takes effect when `grep-compute-defaults' is called.")
-(defvar find-program (purecopy "find") "\
+(defvar find-program (purecopy "/usr/gnu/bin/find") "\
 The default find program.
 This is used by commands like `grep-find-command', `find-dired'
 and others.")
--- emacs-30.1/lisp/progmodes/grep.el.orig
+++ emacs-30.1/lisp/progmodes/grep.el
@@ -548,7 +548,7 @@
 This variable's value takes effect when `grep-compute-defaults' is called.")
 
 ;;;###autoload
-(defvar find-program (purecopy "find")
+(defvar find-program (purecopy "/usr/gnu/bin/find")
   "The default find program.
 This is used by commands like `grep-find-command', `find-dired'
 and others.")