diff options
Diffstat (limited to 'm4/mktime.m4')
| -rw-r--r-- | m4/mktime.m4 | 93 |
1 files changed, 43 insertions, 50 deletions
diff --git a/m4/mktime.m4 b/m4/mktime.m4 index 44b8d87..5faf393 100644 --- a/m4/mktime.m4 +++ b/m4/mktime.m4 @@ -1,6 +1,5 @@ -# serial 15 -dnl Copyright (C) 2002-2003, 2005-2007, 2009-2010 Free Software Foundation, -dnl Inc. +#serial 13 +dnl Copyright (C) 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -14,16 +13,9 @@ dnl From Jim Meyering. # AC_FUNC_MKTIME # -------------- AC_DEFUN([AC_FUNC_MKTIME], -[AC_CHECK_HEADERS_ONCE([unistd.h]) -AC_CHECK_FUNCS_ONCE([alarm]) -AC_REQUIRE([gl_MULTIARCH]) -if test $APPLE_UNIVERSAL_BUILD = 1; then - # A universal build on Apple MacOS 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. - ac_cv_func_working_mktime=no -fi -AC_CACHE_CHECK([for working mktime], [ac_cv_func_working_mktime], +[AC_CHECK_HEADERS_ONCE(unistd.h) +AC_CHECK_FUNCS_ONCE(alarm) +AC_CACHE_CHECK([for working mktime], ac_cv_func_working_mktime, [AC_RUN_IFELSE([AC_LANG_SOURCE( [[/* Test program from Paul Eggert and Tony Leneis. */ #include <limits.h> @@ -76,18 +68,20 @@ spring_forward_gap () } static int -mktime_test1 (time_t now) +mktime_test1 (now) + time_t now; { struct tm *lt; return ! (lt = localtime (&now)) || mktime (lt) == now; } static int -mktime_test (time_t now) +mktime_test (now) + time_t now; { return (mktime_test1 (now) - && mktime_test1 ((time_t) (time_t_max - now)) - && mktime_test1 ((time_t) (time_t_min + now))); + && mktime_test1 ((time_t) (time_t_max - now)) + && mktime_test1 ((time_t) (time_t_min + now))); } static int @@ -107,7 +101,8 @@ irix_6_4_bug () } static int -bigtime_test (int j) +bigtime_test (j) + int j; { struct tm tm; time_t now; @@ -117,17 +112,17 @@ bigtime_test (int j) { struct tm *lt = localtime (&now); if (! (lt - && lt->tm_year == tm.tm_year - && lt->tm_mon == tm.tm_mon - && lt->tm_mday == tm.tm_mday - && lt->tm_hour == tm.tm_hour - && lt->tm_min == tm.tm_min - && lt->tm_sec == tm.tm_sec - && lt->tm_yday == tm.tm_yday - && lt->tm_wday == tm.tm_wday - && ((lt->tm_isdst < 0 ? -1 : 0 < lt->tm_isdst) - == (tm.tm_isdst < 0 ? -1 : 0 < tm.tm_isdst)))) - return 0; + && lt->tm_year == tm.tm_year + && lt->tm_mon == tm.tm_mon + && lt->tm_mday == tm.tm_mday + && lt->tm_hour == tm.tm_hour + && lt->tm_min == tm.tm_min + && lt->tm_sec == tm.tm_sec + && lt->tm_yday == tm.tm_yday + && lt->tm_wday == tm.tm_wday + && ((lt->tm_isdst < 0 ? -1 : 0 < lt->tm_isdst) + == (tm.tm_isdst < 0 ? -1 : 0 < tm.tm_isdst)))) + return 0; } return 1; } @@ -159,7 +154,7 @@ year_2050_test () to the correct answer that we can assume the discrepancy is due to leap seconds. */ return (t == (time_t) -1 - || (0 < t && answer - 120 <= t && t <= answer + 120)); + || (0 < t && answer - 120 <= t && t <= answer + 120)); } int @@ -177,7 +172,7 @@ main () { t = (time_t_max << 1) + 1; if (t <= time_t_max) - break; + break; time_t_max = t; } time_t_min = - ((time_t) ~ (time_t) 0 == (time_t) -1) - time_t_max; @@ -186,29 +181,29 @@ main () for (i = 0; i < N_STRINGS; i++) { if (tz_strings[i]) - putenv (tz_strings[i]); + putenv (tz_strings[i]); for (t = 0; t <= time_t_max - delta; t += delta) - if (! mktime_test (t)) - return 1; + if (! mktime_test (t)) + return 1; if (! (mktime_test ((time_t) 1) - && mktime_test ((time_t) (60 * 60)) - && mktime_test ((time_t) (60 * 60 * 24)))) - return 1; + && mktime_test ((time_t) (60 * 60)) + && mktime_test ((time_t) (60 * 60 * 24)))) + return 1; for (j = 1; ; j <<= 1) - if (! bigtime_test (j)) - return 1; - else if (INT_MAX / 2 < j) - break; + if (! bigtime_test (j)) + return 1; + else if (INT_MAX / 2 < j) + break; if (! bigtime_test (INT_MAX)) - return 1; + return 1; } return ! (irix_6_4_bug () && spring_forward_gap () && year_2050_test ()); }]])], - [ac_cv_func_working_mktime=yes], - [ac_cv_func_working_mktime=no], - [ac_cv_func_working_mktime=no])]) + [ac_cv_func_working_mktime=yes], + [ac_cv_func_working_mktime=no], + [ac_cv_func_working_mktime=no])]) if test $ac_cv_func_working_mktime = no; then AC_LIBOBJ([mktime]) fi @@ -216,14 +211,12 @@ fi AC_DEFUN([gl_FUNC_MKTIME], [ - AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) AC_FUNC_MKTIME - dnl Note: AC_FUNC_MKTIME does AC_LIBOBJ([mktime]). + dnl Note: AC_FUNC_MKTIME does AC_LIBOBJ(mktime). if test $ac_cv_func_working_mktime = no; then - REPLACE_MKTIME=1 + AC_DEFINE(mktime, rpl_mktime, + [Define to rpl_mktime if the replacement function should be used.]) gl_PREREQ_MKTIME - else - REPLACE_MKTIME=0 fi ]) |