(atexit): Define using a prototype.

[gnulib.git] / m4 / strftime.m4

diff --git a/m4/strftime.m4 b/m4/strftime.m4
index fd4b6ff..84a1996 100644 (file)
--- a/m4/strftime.m4
+++ b/m4/strftime.m4
@@ -1,146 +1,41 @@
-#serial 6
+#serial 20

 
 dnl This macro is intended to be used solely in this file.
 dnl These are the prerequisite macros for GNU's strftime.c replacement.
 
 dnl This macro is intended to be used solely in this file.
 dnl These are the prerequisite macros for GNU's strftime.c replacement.

-dnl FIXME: the list is far from complete
-AC_DEFUN(_jm_STRFTIME_PREREQS,
+AC_DEFUN([_jm_STRFTIME_PREREQS],

 [
 [

- dnl strftime.c uses localtime_r if it exists.  Check for it.
- AC_CHECK_FUNCS(localtime_r)
- dnl FIXME: add tests for everything in strftime.c: e.g., HAVE_BCOPY,
- dnl HAVE_TZNAME, HAVE_TZSET, HAVE_TM_ZONE, etc.
+ dnl strftime.c uses the underyling system strftime if it exists.
+ AC_FUNC_STRFTIME
+
+ AC_CHECK_HEADERS_ONCE(limits.h)
+ AC_CHECK_FUNCS_ONCE(memcpy mempcpy)
+ AC_CHECK_FUNCS(tzset memset)
+
+ # This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE.
+ AC_STRUCT_TIMEZONE
+
+ AC_CHECK_FUNCS(mblen mbrlen)
+ AC_TYPE_MBSTATE_T
+
+ AC_REQUIRE([gl_TM_GMTOFF])
+ AC_REQUIRE([gl_FUNC_TZSET_CLOBBER])

 ])
 
 ])
 

-dnl Determine if the strftime function has all the features of the GNU one.
-dnl

 dnl From Jim Meyering.
 dnl
 dnl From Jim Meyering.
 dnl

-AC_DEFUN(jm_FUNC_GNU_STRFTIME,
+AC_DEFUN([jm_FUNC_GNU_STRFTIME],

 [AC_REQUIRE([AC_HEADER_TIME])dnl
 
  _jm_STRFTIME_PREREQS
 
  AC_REQUIRE([AC_C_CONST])dnl
  AC_REQUIRE([AC_HEADER_STDC])dnl
 [AC_REQUIRE([AC_HEADER_TIME])dnl
 
  _jm_STRFTIME_PREREQS
 
  AC_REQUIRE([AC_C_CONST])dnl
  AC_REQUIRE([AC_HEADER_STDC])dnl

- AC_CHECK_HEADERS(sys/time.h)
- AC_CACHE_CHECK([for working GNU strftime], jm_cv_func_working_gnu_strftime,
-  [AC_TRY_RUN(
-changequote(<<, >>)dnl
-<< /* Ulrich Drepper provided parts of the test program.  */
-#if STDC_HEADERS
-# include <stdlib.h>
-#endif
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-#  include <sys/time.h>
-# else
-#  include <time.h>
-# endif
-#endif
-
-static int
-compare (const char *fmt, const struct tm *tm, const char *expected)
-{
-  char buf[99];
-  strftime (buf, 99, fmt, tm);
-  if (strcmp (buf, expected))
-    {
-#ifdef SHOW_FAILURES
-      printf ("fmt: \"%s\", expected \"%s\", got \"%s\"\n",
-             fmt, expected, buf);
-#endif
-      return 1;
-    }
-  return 0;
-}
-
-int
-main ()
-{
-  int n_fail = 0;
-  struct tm *tm;
-  time_t t = 738367; /* Fri Jan  9 13:06:07 1970 */
-  tm = gmtime (&t);
-
-  /* This is necessary to make strftime give consistent zone strings and
-     e.g., seconds since the epoch (%s).  */
-  putenv ("TZ=GMT0");
-
-#undef CMP
-#define CMP(Fmt, Expected) n_fail += compare ((Fmt), tm, (Expected))
-
-  CMP ("%-m", "1");            /* GNU */
-  CMP ("%A", "Friday");
-  CMP ("%^A", "FRIDAY");       /* The ^ is a GNU extension.  */
-  CMP ("%B", "January");
-  CMP ("%^B", "JANUARY");
-  CMP ("%C", "19");            /* POSIX.2 */
-  CMP ("%D", "01/09/70");      /* POSIX.2 */
-  CMP ("%F", "1970-01-09");
-  CMP ("%G", "1970");          /* GNU */
-  CMP ("%H", "13");
-  CMP ("%I", "01");
-  CMP ("%M", "06");
-  CMP ("%M", "06");
-  CMP ("%R", "13:06");         /* POSIX.2 */
-  CMP ("%S", "07");
-  CMP ("%T", "13:06:07");      /* POSIX.2 */
-  CMP ("%U", "01");
-  CMP ("%V", "02");
-  CMP ("%W", "01");
-  CMP ("%X", "13:06:07");
-  CMP ("%Y", "1970");
-  CMP ("%Z", "GMT");
-  CMP ("%_m", " 1");           /* GNU */
-  CMP ("%a", "Fri");
-  CMP ("%^a", "FRI");
-  CMP ("%b", "Jan");
-  CMP ("%^b", "JAN");
-  CMP ("%c", "Fri Jan  9 13:06:07 1970");
-  CMP ("%^c", "FRI JAN  9 13:06:07 1970");
-  CMP ("%d", "09");
-  CMP ("%e", " 9");            /* POSIX.2 */
-  CMP ("%f", "5");             /* POSIX.2 */
-  CMP ("%g", "70");            /* GNU */
-  CMP ("%h", "Jan");           /* POSIX.2 */
-  CMP ("%^h", "JAN");
-  CMP ("%j", "009");
-  CMP ("%k", "13");            /* GNU */
-  CMP ("%l", " 1");            /* GNU */
-  CMP ("%m", "01");
-  CMP ("%n", "\n");            /* POSIX.2 */
-  CMP ("%p", "PM");
-  CMP ("%r", "01:06:07 PM");   /* POSIX.2 */
-  CMP ("%s", "738367");                /* GNU */
-  CMP ("%t", "\t");            /* POSIX.2 */
-  CMP ("%u", "5");             /* POSIX.2 */
-  CMP ("%w", "5");
-  CMP ("%x", "01/09/70");
-  CMP ("%y", "70");
-  CMP ("%z", "+0000");         /* GNU */
-
-  exit (n_fail ? 1 : 0);
-}
-             >>,
-changequote([, ])dnl
-            jm_cv_func_working_gnu_strftime=yes,
-             jm_cv_func_working_gnu_strftime=no,
-            dnl When crosscompiling, assume strftime is missing or broken.
-            jm_cv_func_working_gnu_strftime=no)
-  ])
-  if test $jm_cv_func_working_gnu_strftime = no; then
-    LIBOBJS="$LIBOBJS strftime.o"
-    AC_DEFINE_UNQUOTED(strftime, gnu_strftime,
-      [Define to gnu_strftime if the replacement function should be used.])
-  fi
+ AC_CHECK_HEADERS_ONCE(sys/time.h)
+ AC_DEFINE([my_strftime], [nstrftime],
+   [Define to the name of the strftime replacement function.])

 ])
 
 ])
 

-AC_DEFUN(jm_FUNC_STRFTIME,
+AC_DEFUN([jm_FUNC_STRFTIME],

 [
   _jm_STRFTIME_PREREQS
 [
   _jm_STRFTIME_PREREQS

-  AC_REPLACE_FUNCS(strftime)

 ])
 ])