EMACS_TIME simplification (Bug#11875).

This replaces macros (which typically do not work in GDB)
with functions, typedefs and enums, making the code easier to debug.
The functional style also makes code easier to read and maintain.
* lib-src/profile.c (TV2): Remove no-longer-needed static var.
* src/systime.h: Include <sys/time.h> on all hosts, not just if
WINDOWSNT, since 'struct timeval' is needed in general.
(EMACS_TIME): Now a typedef, not a macro.
(EMACS_TIME_RESOLUTION, LOG10_EMACS_TIME_RESOLUTION): Now constants,
not macros.
(EMACS_SECS, EMACS_NSECS, EMACS_TIME_SIGN, EMACS_TIME_VALID_P)
(EMACS_TIME_FROM_DOUBLE, EMACS_TIME_TO_DOUBLE, EMACS_TIME_EQ)
(EMACS_TIME_NE, EMACS_TIME_GT, EMACS_TIME_GE, EMACS_TIME_LT)
(EMACS_TIME_LE): Now functions, not macros.
(EMACS_SET_SECS, EMACS_SET_NSECS, EMACS_SET_SECS_NSECS)
(EMACS_SET_USECS, EMACS_SET_SECS_USECS): Remove these macros,
which are not functions.  All uses rewritten to use:
(make_emacs_time): New function.
(EMACS_SECS_ADDR, EMACS_SET_INVALID_TIME, EMACS_GET_TIME)
(EMACS_ADD_TIME, EMACS_SUB_TIME): Remove these macros, which are
not functions.  All uses rewritten to use the following, respectively:
(emacs_secs_addr, invalid_emacs_time, get_emacs_time)
(add_emacs_time, sub_emacs_time): New functions.
* src/atimer.c: Don't include <sys/time.h>,	as "systime.h" does this.
* src/fileio.c (Fcopy_file):
* src/xterm.c (XTflash): Get the current time closer to when it's used.
* src/makefile.w32-in ($(BLD)/atimer.$(O)): Update dependencies.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/undo.c b/src/undo.c
index bada46563a0..c90e7b62405 100644
--- a/src/undo.c
+++ b/src/undo.c
@@ -517,9 +517,9 @@ Return what remains of the list.  */)
                       && CONSP (XCDR (XCDR (XCDR (cdr))))
                       && INTEGERP (XCAR (XCDR (XCDR (XCDR (cdr)))))
                       && XINT (XCAR (XCDR (XCDR (XCDR (cdr))))) < 0)
-                    EMACS_SET_SECS_NSECS
-                      (mod_time, 0,
-                       XINT (XCAR (XCDR (XCDR (XCDR (cdr))))) / 1000);
+                    mod_time =
+                      (make_emacs_time
+                       (0, XINT (XCAR (XCDR (XCDR (XCDR (cdr))))) / 1000));
                   else
                     mod_time = lisp_time_argument (cdr);