diff options
Diffstat (limited to 'm4/mktime.m4')
| -rw-r--r-- | m4/mktime.m4 | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/m4/mktime.m4 b/m4/mktime.m4 index d3d376a4..e8d340ac 100644 --- a/m4/mktime.m4 +++ b/m4/mktime.m4 @@ -1,5 +1,5 @@ -# serial 24 -dnl Copyright (C) 2002-2003, 2005-2007, 2009-2013 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distribute it, @@ -14,7 +14,7 @@ AC_DEFUN([gl_FUNC_MKTIME], dnl We don't use AC_FUNC_MKTIME any more, because it is no longer maintained dnl in Autoconf and because it invokes AC_LIBOBJ.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 Mac OS X platforms. @@ -34,8 +34,8 @@ AC_DEFUN([gl_FUNC_MKTIME], # 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. */ @@ -171,10 +171,13 @@ main () 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 |