Merge from emacs-23; up to 2010-06-09T17:54:28Z!albinus@detlef.

8 files changed, 47 insertions, 4 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 4a675cc96c6..0067163edbf 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,21 @@
+2011-04-23  Eli Zaretskii  <eliz@gnu.org>
+
+        * s/ms-w32.h (localtime): Redirect to sys_localtime.
+
+        * w32.c: Include <time.h>.
+        (sys_localtime): New function.
+
+2011-04-23  Chong Yidong  <cyd@stupidchicken.com>
+
+        * xdisp.c (init_xdisp): Initialize echo_area_window (Bug#6451).
+
+        * buffer.c (syms_of_buffer): Doc fix (Bug#6902).
+
+2011-04-23  Samuel Thibault  <sthibault@debian.org>  (tiny change)
+
+        * sysdep.c (wait_for_termination): On GNU Hurd, kill returns -1 on
+        zombies (Bug#8467).
+
 2011-04-19  Eli Zaretskii  <eliz@gnu.org>
 
         * syntax.h (SETUP_SYNTAX_TABLE_FOR_OBJECT): Fix setting of
diff --git a/src/buffer.c b/src/buffer.c
index c649836adb8..46e8ddf1538 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5551,7 +5551,8 @@ Linefeed indents to this column in Fundamental mode.  */);
 
   DEFVAR_PER_BUFFER ("tab-width", &BVAR (current_buffer, tab_width),
                      make_number (LISP_INT_TAG),
-                     doc: /* *Distance between tab stops (for display of tab characters), in columns.  */);
+                     doc: /* *Distance between tab stops (for display of tab characters), in columns.
+This should be an integer greater than zero.  */);
 
   DEFVAR_PER_BUFFER ("ctl-arrow", &BVAR (current_buffer, ctl_arrow), Qnil,
                      doc: /* *Non-nil means display control chars with uparrow.
diff --git a/src/dispextern.h b/src/dispextern.h
index 1f2189adeca..72e23e6642a 100644
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -62,7 +62,7 @@ typedef HDC XImagePtr_or_DC;
 
 #ifdef HAVE_NS
 #include "nsgui.h"
-/* following typedef needed to accomodate the MSDOS port, believe it or not */
+/* Following typedef needed to accommodate the MSDOS port, believe it or not.  */
 typedef struct ns_display_info Display_Info;
 typedef Pixmap XImagePtr;
 typedef XImagePtr XImagePtr_or_DC;
diff --git a/src/msdos.c b/src/msdos.c
index e02e64b9ece..6bff56b3f82 100644
--- a/src/msdos.c
+++ b/src/msdos.c
@@ -842,7 +842,7 @@ IT_set_face (int face)
 
 /* According to RBIL (INTERRUP.A, V-1000), 160 is the maximum possible
    width of a DOS display in any known text mode.  We multiply by 2 to
-   accomodate the screen attribute byte.  */
+   accommodate the screen attribute byte.  */
 #define MAX_SCREEN_BUF 160*2
 
 extern unsigned char *encode_terminal_code (struct glyph *, int,
diff --git a/src/s/ms-w32.h b/src/s/ms-w32.h
index 8b189baea46..bf6cc66798c 100644
--- a/src/s/ms-w32.h
+++ b/src/s/ms-w32.h
@@ -204,6 +204,7 @@ struct sigaction {
 #define dup2    sys_dup2
 #define fopen   sys_fopen
 #define link    sys_link
+#define localtime sys_localtime
 #define mkdir   sys_mkdir
 #undef mktemp
 #define mktemp  sys_mktemp
diff --git a/src/sysdep.c b/src/sysdep.c
index 45e80ac0155..4b3a78e154e 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -304,7 +304,7 @@ wait_for_termination (int pid)
 {
   while (1)
     {
-#if defined (BSD_SYSTEM) || defined (HPUX)
+#if (defined (BSD_SYSTEM) || defined (HPUX)) && !defined(__GNU__)
       /* Note that kill returns -1 even if the process is just a zombie now.
          But inevitably a SIGCHLD interrupt should be generated
          and child_sig will do wait3 and make the process go away. */
diff --git a/src/w32.c b/src/w32.c
index d715c39fa81..85e4a2025b9 100644
--- a/src/w32.c
+++ b/src/w32.c
@@ -34,6 +34,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <mbstring.h>   /* for _mbspbrk */
 #include <math.h>
 #include <setjmp.h>
+#include <time.h>
 
 /* must include CRT headers *before* config.h */
 
@@ -62,6 +63,8 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #undef strerror
 
+#undef localtime
+
 #include "lisp.h"
 
 #include <pwd.h>
@@ -1942,6 +1945,12 @@ gettimeofday (struct timeval *tv, struct timezone *tz)
 
   tv->tv_sec = tb.time;
   tv->tv_usec = tb.millitm * 1000L;
+  /* Implementation note: _ftime sometimes doesn't update the dstflag
+     according to the new timezone when the system timezone is
+     changed.  We could fix that by using GetSystemTime and
+     GetTimeZoneInformation, but that doesn't seem necessary, since
+     Emacs always calls gettimeofday with the 2nd argument NULL (see
+     EMACS_GET_TIME).  */
   if (tz)
     {
       tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich  */
@@ -5678,6 +5687,19 @@ sys_write (int fd, const void * buffer, unsigned int count)
   return nchars;
 }
 
+/* The Windows CRT functions are "optimized for speed", so they don't
+   check for timezone and DST changes if they were last called less
+   than 1 minute ago (see http://support.microsoft.com/kb/821231).  So
+   all Emacs features that repeatedly call time functions (e.g.,
+   display-time) are in real danger of missing timezone and DST
+   changes.  Calling tzset before each localtime call fixes that.  */
+struct tm *
+sys_localtime (const time_t *t)
+{
+  tzset ();
+  return localtime (t);
+}
+
 static void
 check_windows_init_file (void)
 {
diff --git a/src/xdisp.c b/src/xdisp.c
index 574c84fc086..19fef35fce8 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -26997,6 +26997,7 @@ init_xdisp (void)
 
   mini_w = XWINDOW (minibuf_window);
   root_window = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (mini_w)));
+  echo_area_window = minibuf_window;
 
   if (!noninteractive)
     {