(mh-find-progs): Avoid WTA error

when mh-progs is nil.  Give a clear specific error message instead.

diff --git a/lisp/mail/mh-utils.el b/lisp/mail/mh-utils.el
index bcbe2e6..3e008d5 100644 (file)
--- a/lisp/mail/mh-utils.el
+++ b/lisp/mail/mh-utils.el
@@ -599,7 +599,9 @@ Set the `mh-progs' and `mh-lib' variables to the file names."
                                  "/usr/local/bin/"
                                  )
                                "inc"))))
+
   (or (and mh-lib (mh-file-command-p (expand-file-name "mhl" mh-lib)))
+      (null mh-progs)
       (setq mh-lib
            ;; Look for a lib directory roughly parallel to the bin
            ;; directory:  Strip any trailing `mh' or `bin' path