-# serial 21
-dnl Copyright (C) 2002-2003, 2005-2007, 2009-2011 Free Software Foundation,
+# serial 25
+dnl Copyright (C) 2002-2003, 2005-2007, 2009-2014 Free Software Foundation,
dnl Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl We don't use AC_FUNC_MKTIME any more, because it is no longer maintained
dnl in Autoconf and because it invokes AC_LIBOBJ.
AC_CHECK_HEADERS_ONCE([unistd.h])
- AC_CHECK_FUNCS_ONCE([alarm])
+ AC_CHECK_DECLS_ONCE([alarm])
AC_REQUIRE([gl_MULTIARCH])
if test $APPLE_UNIVERSAL_BUILD = 1; then
- # A universal build on Apple MacOS X platforms.
+ # A universal build on Apple Mac OS X platforms.
# The test result would be 'yes' in 32-bit mode and 'no' in 64-bit mode.
# But we need a configuration result that is valid in both modes.
gl_cv_func_working_mktime=no
# include <unistd.h>
#endif
-#ifndef HAVE_ALARM
-# define alarm(X) /* empty */
+#if HAVE_DECL_ALARM
+# include <signal.h>
#endif
/* Work around redefinition to rpl_putenv by other config tests. */
int time_t_signed_magnitude = (time_t) ~ (time_t) 0 < (time_t) -1;
int time_t_signed = ! ((time_t) 0 < (time_t) -1);
+#if HAVE_DECL_ALARM
/* This test makes some buggy mktime implementations loop.
Give up after 60 seconds; a mktime slower than that
isn't worth using anyway. */
+ signal (SIGALRM, SIG_DFL);
alarm (60);
+#endif
time_t_max = (! time_t_signed
? (time_t) -1
if (tz_strings[i])
putenv (tz_strings[i]);
- for (t = 0; t <= time_t_max - delta; t += delta)
+ for (t = 0; t <= time_t_max - delta && (result & 1) == 0; t += delta)
if (! mktime_test (t))
result |= 1;
- if (! (mktime_test ((time_t) 1)
- && mktime_test ((time_t) (60 * 60))
- && mktime_test ((time_t) (60 * 60 * 24))))
+ if ((result & 2) == 0
+ && ! (mktime_test ((time_t) 1)
+ && mktime_test ((time_t) (60 * 60))
+ && mktime_test ((time_t) (60 * 60 * 24))))
result |= 2;
- for (j = 1; ; j <<= 1)
- if (! bigtime_test (j))
- result |= 4;
- else if (INT_MAX / 2 < j)
- break;
- if (! bigtime_test (INT_MAX))
+ for (j = 1; (result & 4) == 0; j <<= 1)
+ {
+ if (! bigtime_test (j))
+ result |= 4;
+ if (INT_MAX / 2 < j)
+ break;
+ }
+ if ((result & 8) == 0 && ! bigtime_test (INT_MAX))
result |= 8;
}
if (! irix_6_4_bug ())
])
# Prerequisites of lib/mktime.c.
-AC_DEFUN([gl_PREREQ_MKTIME],
-[
- AC_REQUIRE([AC_C_INLINE])
-])
+AC_DEFUN([gl_PREREQ_MKTIME], [:])