Rename CANNOT_DUMP to HAVE_UNEXEC

* configure.ac (CANNOT_DUMP): Remove.  All uses removed,
or changed to the negative of with_unexec.
(HAVE_UNEXEC): New macro.  All uses of CANNOT_DUMP changed
to the negative of this macro.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/term.c b/src/term.c
index c5a1fb99a15..7255f561e2a 100644
--- a/src/term.c
+++ b/src/term.c
@@ -1350,7 +1350,8 @@ term_get_fkeys_1 (void)
   char **address = term_get_fkeys_address;
   KBOARD *kboard = term_get_fkeys_kboard;
 
-  /* This can happen if CANNOT_DUMP or with strange options.  */
+  /* This can happen if Emacs is starting up from scratch, or with
+     strange options.  */
   if (!KEYMAPP (KVAR (kboard, Vinput_decode_map)))
     kset_input_decode_map (kboard, Fmake_sparse_keymap (Qnil));