Port to hypothetical case where Qnil is nonzero

* alloc.c (allocate_pseudovector):
* callint.c (Fcall_interactively):
* coding.c (syms_of_coding):
* dispnew.c (realloc_glyph_pool):
* fringe.c (init_fringe):
* lisp.h (memsetnil):
* xdisp.c (init_iterator):
Port to the currently-hypothetical case where Qnil is nonzero.
* dispnew.c (adjust_glyph_matrix): Remove unnecessary verification,
as there are no Lisp_Object values in the data here.
* lisp.h (NIL_IS_NONZERO): New symbol, replacing NIL_IS_ZERO.
All uses changed.  Define only if not already defined, so that one
can debug with -DNIL_IS_NONZERO.
* xdisp.c (init_iterator): Remove unnecessary initializations to 0.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index f6a5f3837a3..b77f00c21c5 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,21 @@
+2015-01-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Port to hypothetical case where Qnil is nonzero
+        * alloc.c (allocate_pseudovector):
+        * callint.c (Fcall_interactively):
+        * coding.c (syms_of_coding):
+        * dispnew.c (realloc_glyph_pool):
+        * fringe.c (init_fringe):
+        * lisp.h (memsetnil):
+        * xdisp.c (init_iterator):
+        Port to the currently-hypothetical case where Qnil is nonzero.
+        * dispnew.c (adjust_glyph_matrix): Remove unnecessary verification,
+        as there are no Lisp_Object values in the data here.
+        * lisp.h (NIL_IS_NONZERO): New symbol, replacing NIL_IS_ZERO.
+        All uses changed.  Define only if not already defined, so that one
+        can debug with -DNIL_IS_NONZERO.
+        * xdisp.c (init_iterator): Remove unnecessary initializations to 0.
+
 2015-01-19  Eli Zaretskii  <eliz@gnu.org>
 
         * dispnew.c (adjust_glyph_matrix, realloc_glyph_pool): Verify that