(void-function executable-command-find-unix-p)

[Hiroshi Fujishima]

Symptoms:

I start emacs with -q and execute M-x grep. I got the following error.

Debugger entered--Lisp error: (void-function executable-command-find-unix-p)
  executable-command-find-unix-p("find")
  grep-compute-defaults()
  (if (and grep-command (or ... ...)) nil (grep-compute-defaults))
  (unless (and grep-command (or ... ...)) (grep-compute-defaults))
  (progn (unless (and grep-command ...) (grep-compute-defaults)) (let (...) 
(list ...)))
  call-interactively(grep)
  execute-extended-command(nil)
  call-interactively(execute-extended-command)

In GNU Emacs 21.3.50.1 (sparc-sun-solaris2.8, X toolkit, Xaw3d scroll bars)
 of 2004-01-30 on newton.nature.tsukuba.ac.jp
configured using `configure '--prefix=/usr/local/emacs21' '--without-xim' 
'CFLAGS=-O3' 'CPPFLAGS=-I/usr/local/emacs21/include -I/usr/misc/include' 
'LDFLAGS=-L/usr/local/emacs21/lib -R/usr/local/emacs21/lib''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  unify-8859-on-encoding-mode: t
  line-number-mode: t

Recent input:
( r e q <escape> <tab> SPC ' m i m e - s e t u p ) 
C-j <escape> x t o g <tab> d e <tab> e <tab> <return> 
<escape> x g r e p <return> C-x C-s C-a C-k C-g C-x 
o <escape> x r e p o r <tab> <return>

Recent messages:
Loading advice...done
Loading mail-mime-setup...done
gnus-mime-setup is not found.
emh-setup is not found.
Debug on Error enabled
Loading grep...done
Loading debug...done
Entering debugger...
Quit
Loading emacsbug...done