Remove unportable assumption about struct layout (Bug#8884).

* buffer.c (clone_per_buffer_values): Don't assume that
sizeof (struct buffer) is a multiple of sizeof (Lisp_Object).
This isn't true in general, and it's particularly not true
if Emacs is configured with --with-wide-int.
* buffer.h (FIRST_FIELD_PER_BUFFER, LAST_FIELD_PER_BUFFER):
New macros, used in the buffer.c change.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index dc62da2035b..72a6f875f53 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,13 @@
+2011-07-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Remove unportable assumption about struct layout (Bug#8884).
+        * buffer.c (clone_per_buffer_values): Don't assume that
+        sizeof (struct buffer) is a multiple of sizeof (Lisp_Object).
+        This isn't true in general, and it's particularly not true
+        if Emacs is configured with --with-wide-int.
+        * buffer.h (FIRST_FIELD_PER_BUFFER, LAST_FIELD_PER_BUFFER):
+        New macros, used in the buffer.c change.
+
 2011-07-05  Jan Djärv  <jan.h.d@swipnet.se>
 
         * xsettings.c: Use both GConf and GSettings if both are available.