2 files changed, 6 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 257cc34c909..fec13318a1c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2014-10-01  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * dispnew.c (adjust_decode_mode_spec_buffer): Prefer ptrdiff_t
+        to ssize_t since we're not using ssize_t-related syscalls here.
+
 2014-09-30  Eli Zaretskii  <eliz@gnu.org>
 
         * w32fns.c (w32_createwindow): Accept an additional argument, an
diff --git a/src/dispnew.c b/src/dispnew.c
index 54657d976ad..f40287cc3cb 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -2137,7 +2137,7 @@ adjust_frame_glyphs_for_window_redisplay (struct frame *f)
 static void
 adjust_decode_mode_spec_buffer (struct frame *f)
 {
-  ssize_t frame_message_buf_size = FRAME_MESSAGE_BUF_SIZE (f);
+  ptrdiff_t frame_message_buf_size = FRAME_MESSAGE_BUF_SIZE (f);
 
   eassert (frame_message_buf_size >= 0);
   f->decode_mode_spec_buffer = xrealloc (f->decode_mode_spec_buffer,